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Alika [10]
3 years ago
12

1.

Mathematics
1 answer:
Westkost [7]3 years ago
4 0
Circumference is 2πr or πd.
So for part 1 the diameter = 9in.
Plug in 9 into the πd formula.
π*9 = 9π in. ≈ 9*(22/7) ≈ 28.29in

For part 2 (from what I can see) they want you to find the same circumference in centimeters(cm) and use 22/7 for π so first convert the radius to cm.
9 in = 9*2.54 = 22.86cm
Next plug in the values into the Circumference formula: π*d
(22/7)*(22.86) ≈ 71.85cm

Hope this helps!

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Answer:

c. 60.9%

Step-by-step explanation:

Given:

The probability P that a person responds to an advertisement can be modeled by the function:

P=1-e^{-0.047t}

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To find the probability that a person has responded after 20 days.

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In order to find the probability that a person has responded after 20 days, we will plugin t=20 in the formula given.

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Plugging in t=20

P(20)=1-e^{-0.047(20)}

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7 0
3 years ago
A company is designing a new cylindrical water bottle. The volume of the bottle will be 187 cmcubed. The height of the water bot
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Answer:

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Step-by-step explanation:

Step 1:

Data obtained from the question. This includes the following:

Volume (V) = 187cm3

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Step 2:

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Divide both side by 3.14 x 7.3

r^2 = 187 / (3.14 x 7.3)

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Answer:

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