I really need your help guys.

I Really Need Your Help Guys.

Answers

Answer 1

Answer:

The average rate of change from 0 to 20 years old is -2.

Step-by-step explanation:

Average rate of change means slope.

slope = y2 - y1 / x2 - x1

Pick any points between 0-20. They have given on the graph already (0, 112) and (20, 72) so plug it into slope equation.

112 - 72/ 0 - 20

40/-20

= -2

The average rate of change from 0 to 20 years old is -2.


Related Questions

There are 4 consecutive odd integers that have a sum of 248. What is the greatest of these integers?

Answers

Answer:

63.5

Step-by-step explanation:

248/4=62

the numbers are

60.5, 61.5, 62.5, 63.5

MAY YOU PLEASE HELP ME!!

Answers

Answer:

D. (4, 0)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Algebra I

Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define systems

-x + 5y = -4

4x + 3y = 16

Step 2: Rewrite systems

x = 5y + 4

4x + 3y = 16

Step 3: Solve for y

Substitute in x:                              4(5y + 4) + 3y = 16Distribute 4:                                   20y + 16 + 3y = 16Combine like terms:                     23y + 16 = 16Subtract 16 on both sides:           23y = 0Divide 23 on both sides:              y = 0

Step 4: Solve for x

Define:                              4x + 3y = 16Substitute in y:                 4x + 3(0) = 16Multiply:                            4x = 16Isolate x:                            x = 4

And we have our final answer!

Olivia Earns $14 per hour at her job and receives a weekly bonus $100. Her total pay for the week of X hours is given by f(x)=100+14x. What is the reasonable domain and range?

Answers

Answer:

Step-by-step explanation:

Given the total pay for the week of X hours given by f(x)=100+14x, the domain of the function is the value of the input variable x for which the function exists. Since her to total week cannnot be negative, hence the value of x for which the function occurs is on all positive integers. This is represented according to the set notation;

Domain = [0, ∞)

The range of the function is the value of the output variable f(x) for all vaues of x for which the function occurs. Snce the minimum value of x is 0, the minimum value of the function will be at f(0);

f(0) = 100 + 14(0)

f(0) = 100 + 0

f(0) = 100

Hence the range of the function will be expressed as;

Range = [100,  ∞)

One litre of milk is poured into a cylindrical container of radius 10 cm. Calculate the depth of the milk in cm)to 2 dp. ( take pi = 3.142)​

Answers

Answer:

Depth=3.18cm

Step-by-step explanation:

V=πr2h

1LITRE=1000CM3

v=1000cm³

1000cm3=3.142×10²×Depth

Depth= 1000/3.142×100

Depth=3.18cm

Jessica is saving money to buy a phone that costs $415. She already has $85 saved. She mows lawns to make extra money. She charges $15 per lawn that she mows. Let n be the number of lawns she needs to mow to have enough money saved to buy the phone. Which could be used to find how many lawns she needs to mow?

Answers

Answer:

22 lawns

Step-by-step explanation:

Phone= $415

Saved = $85

Money needed: $415 - $85 = $330

1 law mowed = $15

# of lawns needed to be mowed: $330 ÷ $15 = 22 lawns

Ans. = 22 lawns

hope this helps

[tex]\frac{6\sqrt{3} }{7\sqrt{8} }[/tex]

Answers

4.1991 I just put it in a calculator

At Paulson Middle School, 75% of the sixth grade class is making a B or higher. If there are
24 students in the sixth grade class, then how many are making a B or higher?
25%



Are we Looking FOR THE PART OR THE WHOLE?​

Answers

Answer:

18 students are making a B or higher

Step-by-step explanation:

24 * 75% = 18

Answer:

we are looking for the part

Answer my math question I asked so many times I lost most of points

Answers

Answer:

f(x) = (x+1)^2 - 9

Answer:

A = 1

B = 2

C = -8

Y intercept is (0,8)

The line of symmetry is x = -1

Min/max is (-1, -9)

Opens up

Domain is (-infinity, infinity)

Range is (-9, infinity)

The vertex is (-1,-9)

Evaluate each expression.

7) (-7) + (-10) – 5 +2 8) (-9) + 4 + (-8) – (-7)

8) (-6) – (2 x 4) – (-1) 10) (-8) + (-4 ÷ -4) – 8

Answers

Answer:

Please check the explanation.

Step-by-step explanation:

Solving the expressions

7)

given the expression

[tex]\left(-7\right)+\:\left(-10\right)\:-\:5\:+2[/tex]

[tex]\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations}[/tex][tex]\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:\:[/tex][tex]\mathrm{Apply\:rule\:}+\left(-a\right)\:=\:-a[/tex]

so

[tex]=\left(-7\right)-10-5+2[/tex]

[tex]=-17-5+2[/tex]

[tex]=-22+2[/tex]

[tex]=-20[/tex]

8)

[tex]\left(-9\right)+4+\left(-8\right)-\left(-7\right)[/tex]

[tex]\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations}[/tex][tex]\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:\:[/tex][tex]\mathrm{Apply\:rule\:}+\left(-a\right)\:=\:-a[/tex]

so

[tex]=-5+\left(-8\right)-\left(-7\right)[/tex]

[tex]=-5-8-\left(-7\right)[/tex]

[tex]=-13-\left(-7\right)[/tex]

[tex]=-13+7[/tex]

[tex]=-6[/tex]

9)

[tex]\left(-6\right)\:-\:\left(2\:\times \:4\right)\:-\:\left(-1\right)\:[/tex]

[tex]\mathrm{Follow\:the\:PEMDAS\:order\:of\:operations}[/tex][tex]\mathrm{Add\:and\:subtract\:\left(left\:to\:right\right)}\:\:[/tex]

so

[tex]\left(-6\right)-\left(2\times \:4\right)-\left(-1\right)[/tex]

Calculate within parentheses

[tex]=\left(-6\right)-8-\left(-1\right)[/tex]

[tex]=-14-\left(-1\right)[/tex]

[tex]=-14+1[/tex]

[tex]=-13[/tex]

10)

[tex]\left(-8\right)\:+\:\left(-4\:\div \:-4\right)\:-\:8[/tex]

solving

[tex]\left(-8\right)+\left(-\frac{4}{-4}\right)-8[/tex]

[tex]\mathrm{Remove\:parentheses}:\quad \left(-a\right)=-a[/tex]

[tex]=-8-\frac{4}{-4}-8[/tex]

[tex]=-8-\left(-1\right)-8[/tex]

[tex]\mathrm{Apply\:rule}\:-\left(-a\right)=a[/tex]

[tex]=-8+1-8[/tex]

[tex]\mathrm{Add/Subtract\:the\:numbers:}\:-8+1-8=-15[/tex]

[tex]=-15[/tex]

The value of the given expression 7) (-7) + (-10) – 5 +2 is -20, 8) (-9) + 4 + (-8) – (-7) is -6, 9) (-6) – (2 x 4) – (-1) is -11, 10) (-8) + (-4 ÷ -4) – 8 is -15.

What is BODMAS rule?

BODMAS stands for B- bracket, O- order, D-division, M-multiplication, A- addition, S- subtraction. We use this rule when there is more than one operation are present in the mathematical expression.

7)  (-7) + (-10) – 5 +2

here, we will use the BODMAS rule, the addition and subtraction will go from left to right.

= -7 -10 -5 + 2

= -17 -5 + 2

= -22 + 2

= -20

8) (-9) + 4 + (-8) – (-7)

=  -9 +4 -8 +7

= -5 -8 +7

= -13 + 7

= -6

9) (-6) – (2 x 4) – (-1)

= -6 - 8 +1

= -12 + 1

= -11

10) (-8) + (-4 ÷ -4) – 8

= -8 -4/ (-4) - 8

= -8 +1 -8

= -7 -8

= -15

Therefore, the value of the given expression 7) (-7) + (-10) – 5 +2 is -20, 8) (-9) + 4 + (-8) – (-7) is -6, 9) (-6) – (2 x 4) – (-1) is -11, 10) (-8) + (-4 ÷ -4) – 8 is -15.

Learn more about the BODMAS rule here:

https://brainly.com/question/24383445

A 2 1/2 pound bag of grass seed covers 1/8 of an acre.How much grass seed is needed for 1 acre

Answers

Answer: 8 times more 8*2 1/2 = 20 pounds.

Step-by-step explanation: If 2.5 pounds cover 1/8 then simply multiply the 2.5 by 8, since you'll need 8/8. 8/8=1.

I hope this helps :)

please help me. my mom got mad at me cause I don't know anything in Pre Cal. (what I am in) ​

Answers

a^2 + b^2 = c^2
a. 4^2 + b^2 = 8^2
16 + b^2 = 64
b^2 = 48
Missing term for A = 6.93 m

Now try B for yourself

I need help please! If I can I will mark brainleist for the one who’s right!

Answers

Answer: A

Step-by-step explanation:

Answer:

D: 20 cans of tuna for $13

Step-by-step explanation:

First:

1. Find out the price of one can

A: $2.50 is per can

B: $1.92 is per can

C: $2.22 is per can

D: $1.54 is per can

The second step is:

Eliminate the most expensive

So, what we have left is

B: $1.92 is per can

D: $1.54 is per can

The cheapest is D: $1.54 is per can.Which can also be said as the smallest price for each canSo the last choice is the answer.

Hope this helped,

Kavitha Banarjee

help
state the multiplicity for each root
[tex]3(x^{2} + 5)^ {2} ( {x}^{2} - 25)^{3} (x - 8)^{4} = 0[/tex]
state the multiplicity for each root​

Answers

x
=
i

5

x
=
i

5
,

i

5
,

5
,
5
,
8

Answers:

The two complex or imaginary roots [tex]x = i\sqrt{5}[/tex] and [tex]x = -i\sqrt{5}[/tex] have multiplicity 2.The two real roots x = 5 and x = -5 have multiplicity 3The root x = 8 has multiplicity 4

======================================================

Explanation:

We'll use the zero product property to solve.

[tex]3(x^2+5)^2(x^2-25)^3(x-8)^4 = 0\\\\(x^2+5)^2=0 \text{ or } (x^2-25)^3=0 \text{ or } (x-8)^4 = 0\\\\x^2+5=0 \text{ or } x^2-25=0 \text{ or } x-8 = 0\\\\x^2=-5 \text{ or } x^2=25 \text{ or } x = 8\\\\x=\pm\sqrt{-5} \text{ or } x=\pm\sqrt{25} \text{ or } x = 8\\\\x=\pm i\sqrt{5} \text{ or } x=\pm 5 \text{ or } x = 8\\\\[/tex]

where [tex]i = \sqrt{-1}[/tex]

----------------------

The notation [tex]x=\pm i\sqrt{5}[/tex] breaks up into [tex]x=i\sqrt{5} \text{ or } x=-i\sqrt{5}[/tex]. The multiplicity of these two roots is 2 as it's the exponent of the factor [tex](x^2+5)^2[/tex]. Focus on the outermost exponent.

The notation [tex]x = \pm 5[/tex] becomes [tex]x = 5 \text{ or } x = -5[/tex]. The multiplicity of these two roots is 3 since it's the outermost exponent of the factor [tex](x^2-25)^3[/tex]

And finally, the multiplicity of the root x = 8 is 4 because it is the outermost exponent of the factor [tex](x-8)^4[/tex]

Can somebody please help me with this math question please

Answers

Answer:

Step-by-step explanation:

isosceles triangles are ones that have two equal sides and angles. this would mean that ab is equal to bc. then you substitute the values in for AB=BC, 3x-4=5x-10. you bring the variables to one side and you flip everything which is then 2x=6 and then divide by 2. this would be x=3. then you have to figure out the AB. 3(3)-4=5. then you can always check for BC, 5(3)-10=5. and they are equal! hope i helped!

what is X for this 4x/3-3x+1=10

Answers

Answer:

x = 1

Step-by-step explanation:

(4x/3) - 3x + 1 = 10

(4x/3) -3x = 9

4x - x = 3

3x = 3

x = 1

X for 4x/3-3x+1=10 is x = -27/5

Solve: 32 = y + 12.4 y = _____ & explain

Answers

Answer:

y=19.6

Step-by-step explanation:

Answer:

to get y you subtract 12.4 from both side and that is your answer.

Step-by-step explanation:

19.6 hope it correct mark brainliest if so thank u have an nice day

how many inches are in 16 centimeters?

Answers

Answer:

6 1/4 inches

Step-by-step explanation:

6.3 inches.
explain: Just use google!

plz answer the question in the screenshot

Answers

The angle is 85 degrees definately

Evaluate the expression |- 15| + | -7|

Answers

Answer:

Step-by-step explanation:

The lines in between the numbers are called absolute value bars. Whenever you see numbers that have absolute value bars, know that the numbers become positive.

Therefore,

|-15| = 15

|-7| = 7

Now we just add,

15+7=22

Final answer = 22

There were 124 people at a concert. Admission was $5 each for adults and $3 each for children. A total of $444 was collected from admissions. How many adults and how many children attended?

Answers

Answer:

The answer is 36 adults and 88 children.

Step-by-step explanation:

The two equations are:

x+y=124 and 5x+3y=444

Using substitution method:

5x+3(124+x)=444

5x+372-3x=444

2x=72

x=36

5(36)+3y=444

180+3y=444

3y=264

y=88

Find three consecutive integers such
that the sum of the first and the
second integer is three more than the
third integer.

Answers

9514 1404 393

Answer:

  4, 5, 6

Step-by-step explanation:

Let x represent the middle one. Then the sum of the first two is ...

  (x -1) +x

And we want that to be 3 more than the third:

  (x -1) +x = (x +1) +3

  2x = x +5 . . . . . . . . . add 1, simplify

  x = 5 . . . . . . . . . . . . . subtract x

Since 5 is the middle integer, the three integers are ...

  4, 5, 6

Lance made four phone calls from his cell phone today. The calls
lasted 4.7, 9.4, 2.3, and 10.6 minutes. Use mental math to find the
total amount of time he spent on the phone.

Answers

Answer:

27

Step-by-step explanation:

Just add all numbers together.

given function of f(x) = 2x - 1 and fg(x) = 10x + 3, find the function of g(x)​

Answers

Answer:

The function of g(x) = 5x + 2

Step-by-step explanation:

Let us use the composite function to solve the question

∵ f(x) = 2x - 1

∵ f(g(x)) = 10x + 3

f(g(x)) means substitute x in f(x) by g(x)

f(g(x)) = 2[g(x)] - 1

→ Equate the two right sides of f(g(x))

2[g(x)] - 1 = 10x + 3

→ Add 1 to both sides

∴ 2[g(x)] - 1 + 1 = 10x + 3 + 1

∴ 2[g(x)] = 10x + 4

→ Divide each term into both sides by 2

∵ [tex]\frac{2[g(x)]}{2}[/tex] = [tex]\frac{10x}{2}[/tex] + [tex]\frac{4}{2}[/tex]

g(x) = 5x + 2

The function of g(x) = 5x + 2

18 points help me fast please

Answers

The answer is d positive

Mr James has coffee worth $400/kg that he wishes to mix with 20kg of coffee worth $700/kg to get a mixture that can be sold for $500/kg. How many kg of the cheaper coffee beans should he use?​

Answers

Answer:

11.3kg

Step-by-step explanation:

if 700=20

therefore 400=400*20÷700=11.3

Jennifer bought some tulips, lilies, and roses to make bouquets. She bought the same number of tulips as lilies. She bought three more roses than tulips and lilies combined. She paid 18 cents for each tulip. The lilies were 27 cents per flower, and the roses cost 55 cents each. How many of each kind of flower did Jennifer buy if she paid $17.15 in all?

Answers

Answer:

z = 18.5

y = 15.5

x = 15.5

Step-by-step explanation:

Let

tulips = x

lilies = y

roses = z

x = y

z= x + 3 or y + 3

The equation is

0.18x + 0.27y + 0.55z = 17.15

Substitute x = y and z = y + 3 into the equation

0.18y + 0.27y + 0.55(y + 3) = 17.15

0.18y + 0.27y + 0.55y + 1.65 = 17.15

y = 17.15 - 1.65

= 15.5

x = y

x = 15.5

z = x + 3

= 15.5 + 3

= 18.5

Therefore,

z = 18.5

y = 15.5

x = 15.5

What equation best represents the following sentence?

The sum of a number and two is twice the number.




n+2=2n

n−2=2n

n+2=2+n

n+n=2n

Answers

Answer:

2n + 1 to find the first odd number.

Step-by-step explanation:

that is it

PLEASE PLEASE HELP I WILL GIVE BRAINALSIT
please answer 8 and 9

Answers

Answer:

8 is 7 and 9 is no, because charlie only saves around 1/4 but melody saves around 1/3

Step-by-step explanation:

Answer:

8:  7

9: No

Step-by-step explanation:

a pump fills a pool at a constant rate at the end of 9 minutes it has filled 1 gallon of water which table represents the relationship between the number of minutes and the number of gallons of water in the pool

Answers

Answer:

D

Step-by-step explanation:

The rate at which the pool is filled is 1 gallon per 9 minutes. If you divide all the numbers of minutes in the left side of the table with the number of gallons on the right you get 9 minutes per gallon for each of them so they follow the rate.

I'll give brainlyiest to whoever answers right first.

There is a line that includes the point (1, 7)and has a slope of 7. What is its equation in slope-intercept form?

Answers

Answer:

y=7x

Step-by-step explanation:

When finding the slope intercept form using 2 points, we do the following.

y=mx+b (Slope intercept from)

y=7x+b (7 is slope)

Substitute the point

7=7(1)+b

7=7+b

b=0

y=7x

The slope intercept equation is y = 7x

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