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3 years ago

How to do stem and leaf plot?

Mathematics

1 answer:

frozen [14]3 years ago

7 0

I found this, Hope this helps you.

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The area of a square in square feet is

Sedaia [141]

Answer:

Part 1) The expression for the perimeter is $P=4(25z-3)$ or $P=100z-12$

Part 2) The perimeter when z = 15 ft. is $P=1,488\ ft$

Step-by-step explanation:

Part 1)

we have

$625z^{2}-150z+9$

Find the roots of the quadratic equation

Equate the equation to zero

$625z^{2}-150z+9=0$

Complete the square

Group terms that contain the same variable, and move the constant to the opposite side of the equation

$625z^{2}-150z=-9$

Factor the leading coefficient

$625(z^{2}-(150/625)z)=-9$

$625(z^{2}-(6/25)z)=-9$

Complete the square. Remember to balance the equation by adding the same constants to each side

$625(z^{2}-(6/25)z+(36/2,500))=-9+(36/4)$

$625(z^{2}-(6/25)z+(36/2,500))=0$

Rewrite as perfect squares

$625(z-6/50)^{2}=0$

$z=6/50=0.12$ -----> root with multiplicity 2

The area is equal to

$A=625(z-0.12)(z-0.12)=[25(z-0.12)][25(z-0.12)]=(25z-3)^{2}$

The length side of the square is $b=(25z-3)$

therefore

The perimeter is equal to

$P=4b$

$P=4(25z-3)$

$P=100z-12$

Part 2) Find the perimeter when z = 15 ft.

we have

$P=100z-12$

substitute the value of z

$P=100(15)-12=1,488\ ft$

4 0

3 years ago

a In each of the following, find the zeros and indicate the multiplicity of each zero. What is the degree of the polynomial? f(x

CaHeK987 [17]

Answer:

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2 years ago

Which of the following are opposite rays

maks197457 [2]

The answer is letter i

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3 years ago

What is the answer for this problem what is x

kodGreya [7K]

X is 3 so 7(3+4)=49 hope that help

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3 years ago

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During a snowstorm, the temperature drops from 0°F to –18°F in 6 hours. On average, by how many degrees is the temperature chang

Tatiana [17]

So the answer is -3°F

To get that you have to the divide the degrees dropped by the time,
18/6 and that’s 3 but it’s negative and I’m degrees and so it’s -3°F

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3 years ago

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