2 years ago

I need help question in picture

Mathematics

2 answers:

Natali5045456 [20]2 years ago

4 0

Area formula of a circle = πr2

π (8.5)2
Area= 226.98

ziro4ka [17]2 years ago

4 0

it's is A= pi x r x 2^

diameter is 17 divide by two is the radius

3.14 x 8.5 x 8.5 is 226.865

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Write a linear Write a linear function f with f(−9)=10 and f(−1)=−2.function f with f(−9)=10 and f(−1)=−2.

MissTica

The point-slope form:

$y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}$

We have

f(-9) = 10 → (-9, 10)

f(-1) = -2 → (-1, -2)

Substitute:

$m=\dfrac{-2-10}{-1-(-9)}=\dfrac{-12}{8}=-\dfrac{3}{2}=-1.5\\\\y-10=-1.5(x-(-9))\\\\y-10=-1.5(x+9)\qquad|\text{use distributive property}\\\\y-10=-1.5x-13.5\qquad|+10\\\\y=-1.5x-3.5$

<h3>Answer: f(x) = -1.5x - 3.5</h3>

5 0

2 years ago

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tatuchka [14]

Answer:

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(here are the 3 graphs)