a rectangular container with a square base, an open top, and a volume of 4,000 cm3 is to be made. what is the minimum surface area for the container? enter only the minimum surface area, and do not include units in your answer.

Answers

Answer 1

A rectangular container with a square base, an open top, and a volume of 4,000 cm³. The minimum surface for the container is 1,200 cm².

The result is obtained by using the derivative.

Determine the minimum surface area

These are the specified parameters:

Volume container is 4,000 cm³.

Let side of square base = a, and height of the container = h, so:

Volume = a × a × h

4,000 = a² h

       h = [tex]\displaystyle \frac{4000}{a^2}[/tex]     ... (1)

Surface area with a square base, an open top is area of a square + 4 times the vertical side.

Surface area (A) = a² + 4ah

Substitute the value of h = [tex]\displaystyle \frac{4000}{a^2}[/tex] into surface area.

A = a² + 4ah

A = a² + 4a ([tex]\displaystyle \frac{4000}{a^2}[/tex])

A = a² + [tex]\displaystyle \frac{16000}{a}[/tex]

So that the surface area is minimal, when the derivative and equate to 0.

A = a² + 16000 a⁻¹

A' = 0

2 a²⁻¹ + (-1) 16000 a⁻¹⁻¹

2a - 16000 a⁻²  = 0

2a - [tex]\displaystyle \frac{16000}{a^2}[/tex] = 0

2a = [tex]\displaystyle \frac{16000}{a^2}[/tex]

2a³ = 16000

 a³ = [tex]\displaystyle \frac{16000}{2}[/tex]

 a³ = 8000

 a = ∛8000

 a = 20

Surface area with a square base, an open top.

Substitute the value of a = 20

A = a² + [tex]\displaystyle \frac{16000}{a}[/tex]

A = 20² + [tex]\displaystyle \frac{16000}{20}[/tex]

A = 400 + 800

A = 1200

The minimum surface for the container is 1,200 cm².

Learn more about other the derivative here:

brainly.com/question/200158

#SPJ4


Related Questions



2 Which ordered pairs represent vertices of the
polygon?
Circle THREE correct answers.
(-11, 13)
(1, -1)
(1/4 , 2 2/1)
(1,-3)

Answers

The ordered pairs representing the vertices of a polygon are

(-11, 13) , (1, -1) and (1,-3).

Given, the ordered pairs representing the vertices of the polygon.

as, the given ordered pairs are

(-11, 13) , (1, -1) , (1/4 , 2(2/1)) , (1,-3).

Now, from the given ordered pairs

the pairs which are representing the vertices of a polygon are

(-11, 13) , (1, -1) and (1,-3).

So, the ordered pairs representing the vertices of a polygon are (-11, 13) ,

(1, -1) and (1,-3).

Hence, the ordered pairs representing the vertices of a polygon are

(-11, 13) , (1, -1) and (1,-3).

Learn more about Coordinate Geometry here https://brainly.com/question/18269861

#SPJ1

HELP NOWWWW LOOK AT IMAGE NOWW

Answers

After multiplying the simplified expression is   [tex]\frac{-x+5}{2x + 6}[/tex] ; x  ≠ -3 , 3 , -2 , -5  , the correct option is (b) .

In the question ,

it is given that ,

the expression is (x²-25)/(2x²+10x+12) × (-x²+x+6)/(x²+2x-15)

we need to find the value of the expression after multiplication .

= (x²-25)/(2x²+10x+12) × (-x²+x+6)/(x²+2x-15)

On splitting the given quadratic equation into factors , we get  

= (x+5)(x-5)/2(x+3)(x+2) × -(x+2)(x-3)/(x-3)(x+5)

= [tex]\frac{(x+5)(x-5)}{2(x+3)(x+2)}[/tex] × [tex]\frac{-(x+2)(x-3)}{(x-3)(x+5)}[/tex]

After cancelling out the common factors , we get

= -(x - 5)/2(x + 3)

= -x+5 / 2x + 6

= [tex]\frac{-x+5}{2x + 6}[/tex]    : x  ≠ -3 , 3 , -2 , -5

Therefore  , After multiplying the simplified expression is   [tex]\frac{-x+5}{2x + 6}[/tex] ; x  ≠ -3 , 3 , -2 , -5  .

Learn more about Multiplication here

https://brainly.com/question/23510546

#SPJ1

karen buys four movie tickets for $\$10.50$ each and two buckets of popcorn for $\$5.50$ each. how many dollars does she spend for the movie tickets and the popcorn? express your answer as a decimal to the nearest hundredth.

Answers

Karen spent $42.00 on movie ticket and $11.00 on popcorn.

Firstly calculating the amount spent on movie tickets

Cost of one movie ticket = $10.50

Cost of four movie tickets = 4×10.5

Performing multiplication on Right Hand Side of the equation

Cost of four movie tickets = $42.00

Now calculating the amount spent on popcorn

Cost on one bucket of popcorn = $5.50

Cost of two buckets of popcorn = 2 × 5.50

Performing multiplication on Right Hand Side of the equation

Cost of two buckets of popcorn = $11.00

Hence, the cost spent on movie tickets and popcorn is $42.00 and $11.00 respectively.

Learn more about multiplication :

https://brainly.com/question/10873737

#SPJ4

7 Résoudre les équations d'inconnue x suivantes:
a.-2x + 7 = -x +9
c.4x +15=2x+6
b. 8x+26=5x+14
d. 7x+31= 16x +17

Answers

Answer:

A)

[tex]\sf -2x+7=-x+9[/tex]

[tex]\sf -2x+7-7=-x+9-7[/tex]

[tex]\sf -2x=-x+2[/tex]

[tex]\sf -2x+x=-x+2+x[/tex]

[tex]\sf -x=2[/tex]

[tex]\sf \cfrac{-x}{-1}=\cfrac{2}{-1}[/tex]

[tex]\boxed{\sf x=-2}[/tex]

____________________

B)

[tex]\sf 4x +15=2x+6[/tex]

[tex]\sf 4x+15-15=2x+6-15[/tex]

[tex]\sf 4x=2x-9[/tex]

[tex]\sf 4x-2x=2x-9-2x[/tex]

[tex]\sf 2x=-9[/tex]

[tex]\sf \cfrac{2x}{2}=\cfrac{-9}{2}[/tex]

[tex]\boxed{\sf x=-\cfrac{9}{2}}[/tex]

____________________

C)

[tex]\sf 8x+26=5x+14[/tex]

[tex]\sf 8x+26-26=5x+14-26[/tex]

[tex]\sf 8x=5x-12[/tex]

[tex]\sf 8x-5x=5x-12-5x[/tex]

[tex]\sf 3x=-12[/tex]

[tex]\sf \cfrac{3x}{3}=\cfrac{-12}{3}[/tex]

[tex]\boxed{\sf x=-4}[/tex]

____________________

D)

[tex]\sf 7x+31=16x+17[/tex]

[tex]\sf 7x+31-31=16x+17-31[/tex]

[tex]\sf 7x=16x-14[/tex]

[tex]\sf 7x-16x=16x-14-16x[/tex]

[tex]\sf -9x=-14[/tex]

[tex]\sf \cfrac{-9x}{-9}=\cfrac{-14}{-9}[/tex]

[tex]\boxed{\sf x=\cfrac{14}{9}}[/tex]

A line passes through the points (0, 0) and (–17, –11). What is its equation in slope-intercept form?

Write your answer using integers, proper fractions, and improper fractions in simplest form

Answers

A line passes through the points (0, 0) and (–17, –11). The equation in the slope-intercept form will be y=9/5x+0

What is a straight line?

A straight line is a combination of endless points joined on both sides of the point.

The slope 'm' of any straight line is given by:

A linear equation has the form y = mx + b in the slope-intercept format. X and Y are the variables in the equation. The values m and b represent the line's slope (m) and the value of y when x is 0.

[tex]\rm m =\dfrac{y_2-y_1}{x_2-x_1}[/tex]

It is given that, the line passes through the points (0, 0) and (–17, –11).

The slope of the line is,

m = (5+4)/(5-0)

m= 9/5

The equation of the line passes through the point as,

(y-y₁)=m(x-x₁)

(y-0)=9/5(x-0)

5(y-0)=9(x-0)

5y=9x+0

y=9/5x+0

Thus, a line passes through the points (0, 0) and (–17, –11). The equation in the slope-intercept form will be y=9/5x+0

Learn more about the straight line here:

brainly.com/question/3493733

#SPJ1

What is the solution of the system? Solve using matrices. ( -3x + 2y = 10 -4x + 3y = 2 (-26 -34) (-34 -26) (26 34) O( no solution)

x + 2y = -1,, x-3y=-2
(-7 ,3)(3,-7) (7,-3)(no solution)
Inverse Matrices and Systems

Answers

Answer:

  (a)  (-26, -34)

Step-by-step explanation:

You want the solution to the system of equations ...

-3x +2y = 10-4x +3y = 2

apparently using inverse matrices.

Matrix equation

The system can be represented by the matrix equation ...

  AX = B

where A is the 2×2 matrix of coefficients, X is the 2×1 variable vector, and B is the 2×1 matrix of constants.

The solution to this system is found by multiplying on the left by the inverse of A:

  A⁻¹·AX = A⁻¹·B

  X = A⁻¹·B

The attachment shows the result of making this calculation:

  [tex]\boxed{X=\left[\begin{array}{c}x\\y\end{array}\right]=\left[\begin{array}{c}-26\\-34\end{array}\right]}[/tex]

If the expression [tex]\sqrt{25x^5y^5}/xy^4[/tex] is written in the form ax^by^c. then what is the product of a, b and c?

Answers

The product of a, b, and c is -45/4.

What is multiplication?

Multiplication is the process of adding a number up to a given number.

The given expression is [tex]\frac{\sqrt{25x^5y^5}}{xy^4}[/tex].

Rewrite the expression as follows,

[tex]\frac{\sqrt{25x^5y^5}}{xy^4}[/tex]

[tex]=\frac{5x^{\frac{5}{2}}y^{\frac{5}{2}}}{xy^4}\\=5x^{\frac{5}{2}-1}y^{\frac{5}{2}-4}\\=5x^{\frac{3}{2}}y^{-\frac{3}{2}}[/tex]

The values of a, b, and c are 5, 3/2, -3/2.

The product of a, b, and c is,

5 × 3/2 × (-3/2)

= -45/4

Hence, the product of a, b, and c is -45/4.

To learn more about multiplication, click here:

https://brainly.com/question/11527721

#SPJ1

931.9572 Find the digits in the hundreds place, in the hundredths place, and in the ten thousandths place for the following number.

Answers

9 in the hundreds place
5 in the hundredths place
2 in the ten hundredths thousands

What would be the compound interest obtained on an amount of $4800 at a rate of 5% per annum for 3 years?
A $448.7
B) $817.8
C)$623.5
D $756.6

Answers

The total compound interest obtained is $756.6.

We are given an initial amount equal to $4,800. This is the principal amount that is denoted by the variable "P". The rate of interest is 5% per annum and is denoted by "r". The interest is compounded annually and denoted by "I". The time duration is 3 years, denoted by the variable "t". Let the final amount be represented by the variable "A". We can use the given formula.

A = P(1 + r)^t

A = $4,800*(1 + 0.05)³

A = $4,800*(1.05)³

A = $4,800*1.157625

A = $5,556.6

The compound interest earned is the difference between the initial and the final amount.

I = A - P

I = $5,556.6 - $4,800

I = $756.6

Hence, the interest amount is $756.6.

To learn more about compound interest, visit :

https://brainly.com/question/29335425

#SPJ1

QUESTION 9/10 HELP ASAPP

Answers

Answer:

y = 3x + 8

Step-by-step explanation:

Given

The y-intercept b = 8,Slope m = 3.

The equation is

y = mx + by = 3x + 8

a raft left port a and traveled toward port b. at the same time, a motorboat left port b and traveled toward port a. how many hours after departure will the two meet if the raft travels the distance between ports a and b after 30 hours and the motorboat travels the same distance in 6 horus?

Answers

If the raft travels the distance between ports a and b after 30 hours and the motorboat travels the distance in 6 hours. After the departure the two boats will after 5 hours 4 minutes.

Given that,

After leaving the port,

Raft travels the distance between a and b ports = 30 hours

Motorboats travels the distance between a and b ports = 6 hours

The triangle formed by their tracks and the line joining their current positions in a right angled triangle.

According to the Pythagoras Theorem,

    a² + b² = c²

⇒ (30)²+ (6)² = c²

⇒ 900 + 36 = c²

⇒ 936 = c²

⇒ c = √936

⇒ c = 30.59

Rounding up 30.59 in 30.6.

Therefore, the boats will the two meet by 30 hours and 6 minutes after they leave the port.

Learn more about Pythagoras Theorem:

https://brainly.com/question/14930619

#SPJ4

A student club plans to buy food for a soup kitchen. A case of vegetables coats $10.68. The club can spend at most $50 for this project. What are all the possible numbers of cases c that the club can buy?

Answers

Answer:

0,1,2,3,4

Step-by-step explanation:

[tex]\frac{50}{16.68}[/tex] = 4.68 rounded to the nearest hundredths.

please help and show steps please

Answers

Answer:

Step-by-step explanation:

f(x)=3x

2

+9x−16

Quadratic polynomial can be factored using the transformation ax

2

+bx+c=a(x−x

1

)(x−x

2

), where x

1

 and x

2

 are the solutions of the quadratic equation ax

2

+bx+c=0.

3x

2

+9x−16=0

All equations of the form ax

2

+bx+c=0 can be solved using the quadratic formula:  

2a

−b±

b

2

−4ac

. The quadratic formula gives two solutions, one when ± is addition and one when it is subtraction.

x=

2×3

−9±

9

2

−4×3(−16)

Square 9.

x=

2×3

−9±

81−4×3(−16)

Multiply −4 times 3.

x=

2×3

−9±

81−12(−16)

Multiply −12 times −16.

x=

2×3

−9±

81+192

Add 81 to 192.

x=

2×3

−9±

273

Multiply 2 times 3.

x=

6

−9±

273

Now solve the equation x=

6

−9±

273

 when ± is plus. Add −9 to  

273

.

x=

6

273

−9

Divide −9+

273

 by 6.

x=

6

273

2

3

Now solve the equation x=

6

−9±

273

 when ± is minus. Subtract  

273

 from −9.

developing proof: what’s wrong with the triangles? explain.

Answers

For the given triangles , developing proof is not possible due to following reasons:

First triangle : 21 + 25 < 48 not true.

Second triangle : Interior angle 130° > Exterior angle 125°

As given in the question,

For the given triangles developing proof is not possible due to following reasons:

First triangle:

Measure of three sides are given as 21, 25 , and 48.

As per the property to form a triangle : Sum of two sides is always greater than the third side.

Here, 21 + 25 < 48 .

Above mention property does not satisfied by given triangle.

Second triangle:

In a triangle, measure of exterior angle is always greater the opposite interior angles.

Here, measure of interior angle 130° > measure of exterior angle 125°

Does not satisfy the relation of exterior angles with interior angle.

Therefore, for the given triangles , developing proof is not possible due to following reasons:

First triangle : 21 + 25 < 48 not true.

Second triangle : Interior angle 130° > Exterior angle 125°.

Learn more about triangles here

brainly.com/question/2773823

#SPJ1

Which function ha real zero at x = –8 and x = 5?

g(x) = x2 3x – 40
g(x) = x2 3x 40
g(x) = x2 14x – 40
g(x) = x2 14x 40

Answers

The function which has real zero at  x = –8 and x = 5 is x² + 3x - 40

Given the real zeroes at x = -8 and x = 5.

Factor theorem states that (x-r) is a factor of the polynomial function f(x) if and only if r is a root of the function f(x).

Since, we know that the root of the function i.e g(x) are -8 and 5 then the function has the following factor:

(x+8) = 0 and (x-5) =0

Zero product property states that if ab = 0 if and only if a =0 and b =0.

By zero product property,

(x+8)(x-5) = 0

Now, distribute each terms of the first polynomial to every term of the second polynomial we get;

x(x - 5) + 8(x - 5)

Now, when you multiply two terms together you must multiply the coefficient (numbers) and add the exponent.

x² + 8x - 5x - 40

Combine like terms;

x² + 3x - 40

therefore, the function  has real zeros at x = -8 and x =5 is x² + 3x - 40

To learn more about quadratic equation refer here

https://brainly.com/question/1214333

#SPJ4

5. USE STRUCTURE What values of a, b, c,
and d will make the equation have one
solution? Then alter your equation so that
it has no solution. Finally, alter the
equation again so that it has infinitely
many solutions.
ax + b = cx+ 8

Answers

Many solutions for a = c and b = 8.

No solution for a = c and b ≠ 8.

One solution for a ≠ c, b can be anything.

What is solution of equations?

Any value of the variable that makes the Left Hand Side (LHS) and the Right Hand Side (RHS) of the equation equal is considered a solution to the problem. Finding the solution or solutions to an equation is known as solving it.

The two sides of the equation must be identical for all values of x if

ax + b = cx + 8 has an unlimited number of solutions. This suggests that

a = c and b = 8.

The two sides of the equation cannot be equal for any value of x if

ax + b = cx + 8 has no solutions. The only way this is possible is if

a = c and b ≠ 8, therefore b can be anything other than 8.

If there is exactly one solution to the equation ax + b = cx + 8, then a ≠ c, meaning that 'a' can be anything other than c. In this situation, 'b' is not constrained in any way (b can be anything).

To know more about the solutions of equation, click on the link

https://brainly.com/question/22688504

#SPJ1

Four boxes are sliding with constant speed before each box experiences an unbalanced force of 8 n. Which box would experience the greatest acceleration when the unbalanced force is applied?.

Answers

The greatest acceleration when the unbalanced force is applied will be experienced by the least weighted box ( i.e., the mass of 2 kg)

Acceleration: it is defined as rate of change of velocity with respect to time.

Unbalanced Force:  it means that the force applied in one direction is greatest than the force applied in the opposite direction.

Given that, F = 8n.

let us assume that the boxes are of 2kg, 4 kg, 6 kg and 8 kg.

According to the 2nd law of motion: the external unbalanced force is directly proportional to rate of change of momentum or Force is equal to the product of mass and acceleration.

                         F = m × a

                 ⇒     a = F/ m

where,  F is Force, m is mass and a is acceleration.

Now, acceleration of the box of 2kg = 8÷2 = 4 m/s²

         acceleration of the box of 4kg = 8÷ 4 = 2 m/m²

         acceleration of the box of 6 kg = 8÷ 6 = 1.34 m/s²

         acceleration of the box of 8kg = 8÷ 8 = 1 m/s²

∴ the box with mass of 2kg experience the greatest acceleration.

learn more about Acceleration:

https://brainly.com/question/12550364

#SPJ4

Joe bought 5 1/4-pounds of trail mix for $24.94. What is the price per pound of the trail mix?​

Answers

Answer:

Step-by-step explanation:

probably close to 5$


A wooden door costs AED 600 plus a 12% tax. What is the price of the door including the tax?

Answers

Answer:

672

Step-by-step explanation:

600+ .12(600)

600 + 72 = 672

Write a linear equation that has m=-4 and passes through (5,9)!

Answers

Answer:

[tex]y=-4x+29[/tex]

Step-by-step explanation:

Using point-slope form,

[tex]y-9=-4(x-5) \\ \\ y-9=-4x+20 \\ \\ y=-4x+29[/tex]

Eve is organizing a race to raise money for a local children's hospital. She makes $20 for each 5K participant and $45 for each 10K participant. Her goal is to raise $9,500.

If x represents the number of participants in the 5K race and y represents the number of participants in the 10K race, the linear equation for the given scenario is
x + y = . If Eve raises exactly $9,500, is it possible for there to be 220 participants in the 5K race?
(yes/no)

Answers

No It is not possible to have 220 participants in the 5k race.

How to determine the number of participants in the races

Information from the question

She makes $20 for each 5K participant

$45 for each 10K participant.

x represents the number of participants in the 5K race

y represents the number of participants in the 10K race

Eve raises exactly $9,500, is it possible for there to be 220 participants in the 5K race = ?

From the question

$20 for each 5K participant and x represents the number of participants in the 5K race. = 20x

$45 for each 10K participant and y represents the number of participants in the 10K race = 45y

Eve raises exactly $9,500 means the sum of amount from 5k and 10k is 9500 =  20x + 45y = 9500

if Eve raise 220 participants in the 5k race then the equation will be

20 * 220 + 45y = 9500

4400 + 45y = 9500

45y = 9500 - 4400

45y = 5100

y = 113.333

The participants are human being and cannot be represented as fractions hence 220 is impossible for the 5k race

Learn more about expressions here:

https://brainly.com/question/29225098

#SPJ1

i need help fast please !

Answers

4) Move the decimal point to the left seven times, for 0.0000006257
5) Move the decimal to the right three times to get a value that can be put into scientific notation. 1.5 x 10^3

(4,-2) with a scale factor of 1.5

Answers

(6,-3)

Add one half of each number to that number

One half of 4 is 2, 4+2=6
One half of -2 is -1, (-2) + (-1)= -3

what is the ratio of james wins to james play

Answers

Answer:

Step-by-step explanation:

Joelle is working on a school report in a word processor. She wants to place an oversized image which is 30.51 cm wide so that it appears centered on the page. The width of the page is 21.59 cm In the program, horizontal positions to the right of the leftmost edge of the page are positive.

What horizontal position for the left edge of the image should Joelle use to center the image?

Answers

The horizontal position for the left edge of the image should Joelle use to center the image is  -4.46 cm .

In the question ,

it is given that ,

the length of the over sized image = 30.51 cm and

the length of the page = 21.59 cm

to find the margin , we subtract the width of the word processor page from the width of the oversized image.

that is

margin = 30.51 - 21.59 = 8.92 cm

Since , we have margin on two side ,that is  horizontal positions to the left most side and horizontal positions to the right of the left most edge of the page . we divide 8.92 by 2 .

= 8.92/2

= 4.46 cm

it is given that the horizontal positions to the right of the leftmost edge of the page are positive,

So , horizontal position for the left edge of the image which Joelle should use to center the image would the negative .

the horizontal position is -4.46 cm  .

Therefore , The horizontal position for the left edge of the image should Joelle use to center the image is  -4.46 cm .

Learn more about Position here

https://brainly.com/question/2918113

#SPJ1

solve x-6y=9 to find x coordinates

Answers

_ _ _                    _ _ _ _ _ _ _   _ _ _

|      |                     |      _ _ _    |    |      |

|      |                     |     |         |   |    |      |

|      |                     |     |         |    |   |      |  

|      |                     |    |          |    |   |      |      

|      | _ _ _ _ _ _  |    | _  _ _|    |  |      | _ _ _ _ _ _

| _ _ _ _ _ _ _ _|  | _ _ _ _ _ _|   | _ _ _ _ _ _ _ _|

The slope is 1/6x

You have to re-arranged the problem

x - 6y = 9 --> 6y = x - 9

6y = x - 9

__   ____    ---->  y = 1/6x - 3/2

6        6

question is on image

Answers

Answer:

y= -3/4 x + 8

Step-by-step explanation:

y-2 = -3/4 (x-8)

y-2 = -3/4 x + 6

y = -3/4 x + 6 + 2

y = -3/4 x + 8

Please help! ASAP!! i really don't understand

Answers

Answer: B

Kyler earns more money in one week. Kyler earns $1,150 and Xiang earns $685 in one week.

Step-by-step explanation:

Have A Good Day!

Find the angle between the following two vectors.
< 8, 3 > and < 4, −3 >

Answers

The angle between the two vectors < 8, 3 > and < 4, −3 > is 57.43°

How to determine the angle between the following two vectors?

Given: vectors < 8, 3 > and < 4, −3 >

To find the angle between two vectors, we can use the dot product method:

First, you will compute the dot product and magnitudes of both vectors. Thus,

Let a = < 8, 3 > and b = < 4, −3 >

a · b = <8, 3> ·<4, -3> = 8(4) + (3)(-3) =  32-9 = 23

|a| = √(8² + 3²) = √(64+9) = √73

|b| = √(4² + (-3)²) = √(16 + 9) = √25 = 5

By using the angle between two vectors formula using dot product,

θ = cos⁻¹ [ (a · b) / (|a| |b|) ]

θ = cos⁻¹ (23 / √73 · 5)

θ  = cos⁻¹ (23/42.72) = 57.43°

Therefore, the angle between the following two vectors is 57.43°

Learn more about vectors on:

https://brainly.com/question/25730276

#SPJ1

Which statements about this situation are true?

Answers

Answer:

D) Alan was farther away from Madison when he started driving

F) Alan and Andrew started the same distance from Madison

Step-by-step explanation:

Hopefully I got them all!!!

Other Questions
HElPEpkapek he i jhofhe50pts!The average density of an object is 0.46 kg/m3. Which of these images is correct after the object is placed in olive oil with a density of 0.92 kg/m3?Will the cube sink?Will the cube float?Will the cube be suspended?I have no clue, but maybe you do which food item from the pacific food guide should an elderly person consume for an excellent (>20% of dv) source of fiber? Meerkats are small desert mammals that live in groups of 2050 individuals. Which behavior would you categorize as examples of reciprocal altruism if you saw them while observing a group of meerkats?. Which skill involves the ability to change and control the direction or position of the body while keeping the motion quick and constant?Question 1 options:agilitybalancespeedpowerQuestion 2 (1 point) Li Qiu wants to trace the path of adrenaline as it sends a message that causes the heart to beat faster, beginning with the first step in the process and ending with the last. Where should Li Qiu start and where should he end?Question 2 options:heart beats faster; gland produces adrenalineadrenaline carries message; heart beats fastergland produces adrenaline; adrenaline carries messagegland produces adrenaline; heart beats fasterQuestion 3 (1 point) SavedWhich type of contraction involves muscles lengthening as they strengthen?Question 3 options:concentriceccentricisometricshorteningQuestion 4 (1 point) Which action helps you warm up before you begin exercising?Question 4 options:Walk around at a normal pace.Kick your legs back and forth.Swing your arms gently back and forth.Open your chest by reaching your arms behind you.Question 5 (1 point) Eva takes a bite of a taco, chews, and then swallows. As the food travels down her esophagus, what muscles are working?Question 5 options:agileskeletalsmoothsecondaryQuestion 6 (1 point) What word describes the muscles that support your hollow organs?Question 6 options:activethicksmoothroughQuestion 7 (1 point) Muscle physiology is a field of study. If someone is studying muscle physiology, what are they MOST interested in learning?Question 7 options:the composition of cellshow muscles workthe position of tissueshow the body uses fatQuestion 8 (1 point) Lisa is getting older and wants to always have a good memory. Lisa exercises on a regular basis as she knows that this increases the body's oxygen, energy, and waste removal. What is the BEST benefit of staying fit in terms of Lisa's memory?Question 8 options:Staying fit removes old brain cells.Staying fit creates new brain cells.Staying fit returns brain cells to the blood.Staying fit releases brain cells into pathways.Question 9 (1 point) When you walk, pick something up, or sit down, which muscles do you use?Question 9 options:skeletalcardiacsmoothsupportiveQuestion 10 (1 point) Hiro used to have to think about every movement when he was first learning to dance. Now all the movements come naturally to him, and he doesn't need to think about them. What has learning to dance built up in Hiro's body?Question 10 options:metabolic connectionshormonesneuron pathwaysglandsQuestion 11 (1 point) What is the act of muscles tightening and shrinking?Question 11 options:eccentricisometriccontractionelongationQuestion 12 (1 point) Christine's grandfather has a heart attack that damages the muscle in the walls of his heart. What muscles did the heart attack harm?Question 12 options:skeletalconcentriccardiacsmoothQuestion 13 (1 point) Pedro's cousin has a disorder that causes his body to grow too fast. This is MOST likely which type of disorder?Question 13 options:endocrinecardiaceccentricnervousQuestion 14 (1 point) When you tighten your fist, what does it do?Question 14 options:loosenextendcontractreleaseQuestion 15 (1 point) Faith has begun exercising and eating light and brain-healthy foods. Lately, she has been feeling better rested, and it seems as though she can think about and work through problems better than before. What MOST likely explains these changes?Question 15 options:Faith's nervous system has eliminated pathways of neurons.Faith's new habits have lowered her reliance on hormones.Faith's brain has been released from managing basic physical functions.Faith's metabolism is working at a higher level. Two parts: Make sure to answer EACH part:1. What is the rate of change for each shop shown below?2. Which shop has the GREATEST rate of change? 2 + b ( a to the power of 2 + 4 ) when a =2 and b=4 although the greedy algorithm is optimal for the us coins, it is not necessarily optimal for any set of coins. a. give an example of a different set of made up coin denominations with different values, for which the greedy algorithm does not yield an optimal solution. your set should include a penny (1 cent) so that there is a solution for every value of n. as before, assume there is infinite availability of each of your coin denomination types. show specifically a counter example in which the greedy algorithm yields a change solution that is not optimal, that is, does not include the fewest number of coins. b. name another algorithmic approach that will find an optimal solution to your example in (a). how many turns of wire would be required to make a 120 mhmh inductance out of a 33.0 cmcm -long air-filled coil with a diameter of 4.1 cmcm ? express your answer using two significant figures. Match the numbers with the correct label. 1. what was the market structure prevalent in the household relocation segment of the indian logistics industry and what are the characteristics? if an action potential could not be received by the atrioventricular node, despite the propagation through sinoatrial node, what do you predict would occur? check all that apply. Which of the following is the correct formula for the margin of error in the interval estimation of p?Multiple Choicez/2p(1p)n1z/2p(1p)n1z/2p(1p)n1z/2p(1p)n1z/2p(1p)nz/2p(1p)nz/2p(1p)n merchants, manufacturers, and ethnic and religious minorities during the colonial era rarely sought favorable policies from the authorities in london as well as from colonial governors and assemblies. question 17 options: 1) false 2) true The printing rate for Printer B is 10 pages more than the rate of printer A because the rate of 25 pages per minute is 10 pages more than the rate 15 pages per minute for Block A what volume of hydrogen is produced, at 567 torr and 24.3c when 4.50 grams of magnesium reacts with excess hydrochloric acid the mixed acid fermentation test uses which reagent to indicate a positive reaction? oxidase catalase methyl red barritt How did most colonial families acquire food? According to McKibben, humans have affected the survival rates of other species. For example, he reports that (select all that apply]: destruction of habitat has made sixty percent of wildlife extinct both koala bears and panda bears are in danger of extinction, with koalas being named as functionally extinct coral reefs have shrunken and will soon be even smaller, one tenth of what they are now birds which make their homes at high altitudes are becoming extinct because of heat if a nitrogen atom and a slightly heavier oxygen atom have equal average speeds, which has the greater kinetic energy? group of answer choices more information is needed. both have the same. nitrogen. oxygen. Why does an increase in gas prices lead to less consumer spending on other items?.