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Soloha48 [4]
3 years ago
10

Please help me if you can ​

Mathematics
1 answer:
IRISSAK [1]3 years ago
8 0

Answer:

8π in

64π mm²

Step-by-step explanation:

The circumference of a circle is equal to 2πr, where r is the radius.

2π(4) = 8π ≈ 25.132

The area of a circle is equal to πr²

π(8)² = 64π ≈ 201.062

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Answer:

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Step-by-step explanation:

"3x + 5y = 15."

Rewrite in slope-intercept form.

The slope-intercept form is  

y=mx+b

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y=mx+b

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5y=15−3x

Divide each term by  "5"  and simplify.

5y/5=15/5−3x/5

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y=-3x/5+3

Rewrite in slope-intercept form.

y=−3/5x+3

Slope:-3/5

The equation of a perpendicular line to  y=−3x/5+3  must have a slope that is the negative reciprocal of the original slope.

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Simplify the result.

mperpendicular=5/3

hope this helps!

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