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Leni [432]
2 years ago
14

find the area of this circle. Use 3.14 as (pie symbol) click the photo to see the circle ! Please help <3 if you can’t see, t

he diameter is 76

Mathematics
1 answer:
igor_vitrenko [27]2 years ago
8 0

Answer:

\displaystyle 4536,4597918...\:cm.^2 = A

Step-by-step explanation:

Split the diametre in half before proceeding:

\displaystyle \pi{r}^2 = A \\ \\ 38^2\pi = A \hookrightarrow 1444\pi = A \\ \\ \boxed{4536,4597918... = A}

I am joyous to assist you at any time.

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Uma wants to buy a video game system for $400. She has $50 and is saving $25 each week. Solve the equation 25w + 50 = 400 to fin
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3 years ago
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Use completing the square to solve for x in the equation (x+7)(x-9) = 25.
balandron [24]

Answer:

x = 1  ±√89

Step-by-step explanation:

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(x+7)(x-9) = 25

Using distributive property:

x(x-9) + 7(x-9) = 25

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To complete squares we need to add and subtract 1, as follows:

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6 0
3 years ago
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