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3 years ago

- Calculate the area of the circle if your radius is 6 inches. (Area = pi r ^2) (Give answer in exact form

Mathematics

2 answers:

dem82 [27]3 years ago

4 0

Answer:

37.7 inches

Step-by-step explanation:

u have the formula so with r being radius just multiply by 2 then multiply that answer by pie and round to the nearest tenth.

loris [4]3 years ago

4 0

37.7 around to the nearest tenth

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Expand and combine like terms.<br> (3c^4-5c^6)^2

lora16 [44]

Answer:

$9c^{8} -30c^{10} + 25c^{12}$

Step-by-step explanation:

We can use formula (a-b)² = a² -2ab + b².

In our example a = 3c^4 and b = 5c^6

$(3c^{4} - 5c^{6})^{2} = [3c^{4} ]^{2} - 2*3c^{4} *5c^{6} + [5c^{6}]^{2}=\\=9c^{8} -30c^{10} + 25c^{12}$

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2 years ago

Simplify (x - y + 1) - (x + y - 1)

andrey2020 [161]

First, distribute the minus sign across the second set. So you have:

x - y + 1 - x - y + 1

Now, we combine like terms:
x-x=0
-y-y=-2y
1+1=2

So we have -2y+2

Hope that helps.

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3 years ago

Given the slope a slope of 2 and a y-intercept of 7, write the equation in slope intercept form

MariettaO [177]

Answer:

$y = 2x + 7$

Step-by-step explanation:

$y = mx + b$

m = slope

b = y-intercept

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2 years ago

If a right circular cone intersects a plane that runs parallel to the edge of the cone, the resulting curve will be a(n)?

faust18 [17]

Question: <span>If a right circular cone intersects a plane that runs parallel to the edge of the cone, the resulting curve will be a(n)?

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