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ella [17]
3 years ago
9

Help and show work for #9

Mathematics
1 answer:
GuDViN [60]3 years ago
5 0

Answer: 11,304mi^2

We're finding area of a circle.

A = pi*r^2

A = pi*60^2

A = pi*3600

A = 11,304mi^2

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A researcher wishes to​ estimate, with 9090​% ​confidence, the proportion of adults who have​ high-speed Internet access. Her es
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8 0
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−6x+14<−28 OR 9x+15≤−12
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Answer:x>7 or x ≤ -3

Solving the 1st inequality

-6x +14 < -28 --------------- (Collect like terms)

-6x < -28 - 14

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Note: If you decide an inequality expression by a negative value, the inequality sign changes)

-6x/-6 > -42/-6

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Solving the 2nd inequality

9x + 15 ≤ −12 ----------- (Collect like terms)

9x ≤ −12 - 15

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9

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Bring both results together, we get

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Step-by-step explanation:

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