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1 year ago

Quiz 10-1 intro circles central angles question 9

Mathematics

1 answer:

kompoz [17]1 year ago

3 0

Answer:

if the diameter of the circle is 25, then the radius will be 12.5.

A=3.14(12.5)2 --> 490.9m^2

C= 2*3.14(12.5)---> 78.5 m

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4. Two points on a line are (-10, 1) and (5, -5). If

Vsevolod [243]

Answer:

The x-coordinate of another point is zero

Step-by-step explanation:

step 1

Find the slope between the two given points

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have

$(-10,1),(5,-5)$

substitute in the formula

$m=\frac{-5-1}{5+10}$

$m=\frac{-6}{15}$

Simplify

$m=-\frac{2}{5}$

step 2

Find the x-coordinate of another point

we have

(x,-3)

we know that

If the other point is on the line, then the slope between the other point and any of the other two points must be the same

Find the slope between the points

$(x,-3),(5,-5)$

Remember that

$m=-\frac{2}{5}$

substitute in the formula

$-\frac{2}{5}=\frac{-5+3}{5-x}$

$-\frac{2}{5}=-\frac{2}{5-x}$

the denominators must be the same

$5=5-x$

$x=0$

therefore

The x-coordinate of another point is zero

3 0

3 years ago

Answer please I’m dying from math

vovikov84 [41]

Step-by-step explanation:

It's C

I hope it helped:)

8 0

3 years ago

If f(x) =-2x+9 and g(x)=-4x^2+5x-3 ,find (f•g)(x)

madam [21]

Answer:

f(x)=-2x+9 g(x)=-4x^2+5x-3Now, f o g (x) = f{g(x)} = f(4x^2+5x-3) = 2(4x^2+5x-3) + 9 = 8x^2+10x-6 + 9

Step-by-step explanation:

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3 years ago

Will give brainliest and please show work

daser333 [38]

This will help u.............

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3 years ago

Read 2 more answers

-x - 3y= -7 please help me solve

Anon25 [30]

Y= -x/3+21 if you’re solving for y

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2 years ago