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alexdok [17]
3 years ago
7

Giving brainliest for the correct answer!!!! As long as you explain!

Mathematics
2 answers:
weeeeeb [17]3 years ago
6 0

Answer:

Circumference is 31.4.

Area is 78.4^2.

Step-by-step explanation:

Circumference = pi times diameter.

3.14 times 10 is 31.4.

Area = 1/4 pi diameter squared.

10^2 = 100

100 times 3.14 = 314

314 times 1/4 is 78.5.

I hope this helps you!

marysya [2.9K]3 years ago
4 0

Answer: 5 is the radius because it is half of 10 in the circle

Step-by-step explanation:

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Answer:

0.4655172413793

Step-by-step explanation:

45/87 ×-9/10 i

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0.4655172413793

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A square 20 cm long and a rectangle 24 cm long have the same perimeter. Find the area of the rectangle.
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X2 + 8x + 19 = 0 What is the equivilent that results from completing the square?
IrinaVladis [17]

Answer:

(x+4)^2+3=0

Step-by-step explanation:

Hey there!

Standard form is what this equation is in

Standard form is this: ax^2+bx+c

So order to complete the square, you need to take the b term out of the equation, divide it by two, and then square it

In this case, the b term is 8

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So now you should add 16 to both sides

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Now you can simplify the LHS

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Now you subtract 16 from both sides

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So this is as far as you can go since you cannot take the square root of a negative number

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