help me please help me please help me please help me please help me please help me please help me please help me please help me please help me please help me please help me please help me please help me please help me please help me please help me please

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Explanation:

Split the graph into separate regions (see the diagram below)

The red trapezoid has the parallel vertical sides of b1 = 1 and b2 = 2. The height of the trapezoid is h = 2

The area of the red trapezoid is

A = h*(b1+b2)/2 = 2*(1+2)/2 = 3

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The blue rectangle has a horizontal side of 2 and vertical side of 2. Its area is 2*2 = 4 square units.

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The pink triangle has a base of 1 and height of 2

area = base*height/2 = 1*2/2 = 1 square unit

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The green triangle has an area of base*height/2 = 2*2/2 = 2 square units

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For any region above the x axis, it gets assigned a positive area. Anything below the x axis gets a negative area to counterbalance the positive areas.

The regions above the x axis add to 3+4+1 = 8 square units. Then we subtract off the area of the green triangle to get 8-2 = 6 square units.

Therefore,  [tex]\displaystyle \int_{0}^{7}f(x)dx = 6[/tex]

Answer:

60 ÷ 15

= 4 mins

the constant of proportionality for the number of 4 minutes to read 1 page.

Answer:

Hey, kevinlopez1225, your answer is Number one!

Astradele

Answer:

%100 Elon Musk going to Mars

Step-by-step explanation:

yes yes yes

i don't know if this is the answer you want

please mark brainliest i need 3 more

Answer:

D) $247.90

Step-by-step explanation:

[tex] \underline{\sf{y = 2.44x + 3.90}}[/tex]

y is the dependent function whereas x is the independent function.

(What does this mean?)

The values of y depend on the values of x, I.e., any change in the value of x causes a change in the value of y, meanwhile, the opposite doesn't happen.

The cost to print the invitation depends on the number of invitations, for real.

The question asks us to find the cost of printing 100 invitations.

Substituting x for 100:

y = (2.44 × 100) + 3.90

y = 244 + 3.90

y = 247.90

The value of y obtained for x = 100 is the cost of printing 100 invitations – $ 247.90

Answer:

r=8cm/2=4cm

using Pythagoras theorem.

(Slant height)²=radius²+height²

slant height²=(4cm)²+(9cm)²

s²=16cm²+81cm²

s²=97cm²

s=(97cm²)⁰'⁵

s=9.8cm

hope it was helpful.

the slant height is 9.8cm

Answer:

26+10-S

Step-by-step explanation:

Answer:

26+10-S or 36-S

Step-by-step explanation:

She has 26 shells and collected 10 more

26+10

And the she gave her sister S shells

26+10-S or 36-S

z-scores are used to describe normal distributions

The interpretation of a 2.5 z score is that, Hayden's score is 2.5 standard deviations below the 550

The z-score is given as:

z = 2.5

The mean and the standard deviation are:

Mean = 550

Standard deviation = 100

A z-score is the number of standard deviations above or below the mean.

Hence, a 2.5 z score is that, Hayden's score is 2.5 standard deviations below the 550

Read more about z scores at:

https://brainly.com/question/25638875

Adjacent sides of a parallelogram are not congruent.

A quadrilateral is a polygon with four sides and and four angles. A parallelogram has opposite sides parallel and equal. Two consecutive angles of a parallelogram are supplementary. Opposite angles and diagonals are congruent. The diagonals bisect each other.

(2x + 7) + (3x - 2) = 180 (consecutive angles)

x = 35°

Find out more on Quadrilateral at: https://brainly.com/question/23935806

Answer:

That equals to 5x5x5 which 5x5x5  = 125

But the correct answer on that quiz is 1st I think

Step-by-step explanation:

Sorry if im wrong

Answer:

75.0001

Step-by-step explanation:

Used a calculator

Answer:

D) 40, 76, 86

Step-by-step explanation:

..........

Answer:

Step-by-step explanation:

The wording "fewer than" is translated to the math symbol "less than". The variable n represents the number of students.

  the number of students is fewer than 18

translates to ...

  n < 18

__

The wording "at least" translates to the math symbol "greater than or equal to."

  the number of students is at least 15

translates to ...

  n ≥ 15

Answer:

1, -2, -4, -6, -6.9, -6.99, -6.999

The radical is 3sqrt(x^18)

18/2=9

so, the radical is

3x^9

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Explanation:

Order doesn't matter when it comes to committees without rankings. Each person on the committee is of equal rank to anyone else. This means we'll use a combination instead of a permutation.

We have 8 men and 3 seats to fill for the men. Plug n = 8 and r = 3 into the nCr combination formula

n C r = (n!)/(r!(n-r)!)

8 C 3 = (8!)/(3!*(8-3)!)

8 C 3 = (8!)/(3!*5!)

8 C 3 = (8*7*6*5*4*3*2*1)/((3*2*1)*(5*4*3*2*1))

8 C 3 = (40320)/((6)*(120))

8 C 3 = (40320)/(720)

8 C 3 = 56

This means there are 56 ways to select the three men from a pool of eight.

Through similar steps, you should plug n = 7 and r = 3 into the nCr combination formula to get 7 C 3 = 35. This means there are 35 ways to pick the three women from a pool of seven.

Overall, there are 56*35 = 1960 ways to select the entire committee of 3 men and 3 women (from a pool of 8 men and 7 women).

Answer:

Step-by-step explanation:

Height

The height of it is the distance between the bottom and the top. You can count grid squares (6), or you can subtract y-coordinates:

  4 -(-2) = 4 +2 = 6

The height of the figure is 6 units.

__

Length

The length is the difference between the left side and the right side. Once again, you can count grid squares (7), or you can subtract x-coordinates:

  4 -(-3) = 4 +3 = 7

The length of the figure is 7 units.

__

Shape

The two upper points are on the same horizontal line, as are the two lower points. The two left-side points are on the same vertical line, as are the two right-side points. Vertical and horizontal lines are at right angles, so all of the corner angles are 90°. The quadrilateral is a rectangle.

__

Area

The area of the quadrilateral is the product of its length and height:

  A = LH

  A = (7 units)(6 units) = 42 units²

The area is 42 square units.

__

Perimeter

The perimeter is the sum of the lengths of the four sides. There are to sides that are 6 units long, and 2 sides that are 7 units long.

  P = 2(6 +7) = 26

The perimeter is 26 units.

Answer:

25 games were played

Step-by-step explanation:

I first found how many games were played in 10 days

and then multiplied it by 5 to know how many games were played in 50 days

(but I am not sure if it is correct since it said that 1 game was played everyday and with rules I am not sure if it is even possible)

feel free to correct me

Answer: 17

Step-by-step explanation:

Lisa and Melinda will play together 8 times

Lisa and Rahul will play together 12 times

Melinda and Rahul will play together 4 times

So total games are 24 -- but they all will play together 4 times.

Since, "exactly 1 game is played per day", they cannot play 2 and 3 together at any day.

So total number will be: (8-4) + (12-4) + (4-4) = 12

Now, we must consider 4 where they played all 3 together; so total number: 12 + 4 = 16

Also, they already played 1 game at 1st day; so total number: 16 + 1 = 17

Answer:

900 km i think

Step-by-step explanation:

umm so first 8*10=80%, then 4500-80%

Answer:

She has 4 quarters, 13 dimes, and 10 nickels in her purse

Step-by-step explanation:

Let q be the amount of quarters, d be the amount of dimes, and n be the amount of nickels she has in her purse. We can use this to set up a system of equations:

25q+10d+5n=280

This is because a quarter is 25 cents, a dime is 10 cents, and a nickel is 5 cents. We also have to convert $2.80 to cents since all our other values are in cents.

d=q+9

She has 9 more dimes than quarters

n=q+6

She has 6 more nickels than quarters

We can solve this system using substitution (substitute q+9 for d and q+6 for n)

25q+10(q+9)+5(q+6)=280

25q+10(q)+10(9)+5(q)+5(6)=280

25q+10q+90+5q+30=280

40q+120=280

Subtract 120 from both sides

40q=160

Divide both sides by 40

q=4

Now we plug this back into the other equations to find the amount of nickels and dimes

d=q+9=4+9=13

n=q+6=4+6=10

She has 4 quarters, 13 dimes, and 10 nickels in her purse

Answer:

[tex]\frac{1}{3}(p-2)[/tex] ,    1/3(p-2)

Step-by-step explanation:

[tex]\frac{1}{3} p-\frac{2}{3}[/tex]

[tex]\frac{1}{3}(p-2)[/tex]

Answer:

Your answer is 8/15.....

Answer:

Hope this helps you.......

Step-by-step explanation:

[tex] \boxed{\blue{\frak{DisneyPrincess29}}}[/tex]

Answer:

breadth =  12 cm and Length is 48 cm

Explanation:

Let the length be x,

then the breadth will be [tex]\frac{1}{4}[/tex]x

Formula for area of rectangle:

length * breadth

using the formula:

x * [tex]\frac{1}{4} x[/tex] = 576

x² = 4(576)

x² = 2304

x = √2304

x = 48

Therefore the Length is 48 cm

Then the breadth  [tex]\frac{1}{4}[/tex] * 48 = 12 cm

Answer:

[tex]7.14\times10^{12}[/tex]

Step-by-step explanation:

Given the following question:

[tex]3.4\times10^4\times2.1\times10^8[/tex]

In order to find the answer to this question we convert both scientific notations into standard form, multiply, and then convert back into scientific notation.

[tex]3.4\times10^4\times2.1\times10^8[/tex]
[tex]3.4\times10^4[/tex]
[tex]3.4\times10^4=3.4.0.0.0.=34000[/tex]
[tex]2.1\times10^8=2.1.0.0.0.0.0.0.0.=210000000[/tex]
[tex]34000\times210000000[/tex]
[tex]34000\times210000000=7140000000000[/tex]
[tex]7140000000000=7.14\times10^{12}[/tex]
[tex]7.14\times10^{12}[/tex]

Hope this helps.

Answer:

8

Step-by-step explanation:

first number = a, there are n numbers

so last number is a + n - 1

sum = [a + (a + n - 1)} * n/2 = (2a + n - 1) / 2 = 2012

n * (2a + n - 1) = 2012 * 2 = 4024

4024 is even, so n must be even, divisible by 2, 4, 8

4024 = 2 * 2012 = 4 * 1006 = 8 * 503

If n = 2, 2a + n - 1 = 2012, 2a + 2 - 1 = 2012, 2a = 2011, impossible.

If n = 4, 2a + n - 1 = 1006, 2a + 4 - 1 = 2a + 3 = 1006, 2a = 1003, impossible

If n = 8, 2a + n - 1 = 503, 2a + 8 - 1 = 2a + 7 = 503, a = 248

so n = 8, a = 248

Answer:

−35k+28

Step-by-step explanation:

the answer is -35k+28

i hope its right

Answer: The simplified sum is

Step-by-step explanation: we have

[tex]{{\boxed{{\tt{\color{blue}{✎A\color{red}{n\color{green}{s\color{lime}{w\color{skyblue}{e\color{cyan}{r\color{blue}{\color{purple}{}}}}}}}}}}}}}[/tex]

4x100+7x10+6x1+6x(1/10)+3x(1/100)+7x(1/1000)