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77julia77 [94]
3 years ago
13

The area A of a circle in square feet with a radius r in feet is given by the formula, A=πr2. What is the area of a circle with

a radius of 3 feet? Round your answer to the nearest thousandths.
Mathematics
1 answer:
alekssr [168]3 years ago
3 0

Answer:

28.29

Step-by-step explanation:

A=πr2

=3.14(3^2) (btw the ^2 is exponent)

=3.14(9)

=28.29

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Answer:

When using formulas in application, or memorizing them for tests, it is helpful to note the similarities and differences in the formulas so you don’t mix them up. Compare the formulas for savings annuities vs payout annuities.

Savings Annuity Payout Annuity

P

N

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d

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(

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(

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(

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PAYOUT ANNUITY FORMULA

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+

r

k

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−

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(

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P0 is the balance in the account at the beginning (starting amount, or principal).

d is the regular withdrawal (the amount you take out each year, each month, etc.)

r is the annual interest rate (in decimal form. Example: 5% = 0.05)

k is the number of compounding periods in one year.

N is the number of years we plan to take withdrawals

3 0
2 years ago
A number line going from 1 to 13. 1 dot is above 1. 3 dots are above 2. 1 dot is above 3. 3 dots are above 4. 1 dot is above 5.
aliina [53]

Answer:

Answer: C) The mean will increase more than the median, but both will increase.

Step-by-step explanation:

I got it right on the test review.

5 0
3 years ago
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Round your answer to this problem to the nearest degree.
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Use the sine law: sinB/b = sinA/a

SinB = b*sinA/a

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Please help, the question is in the picture.
Talja [164]

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6 0
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The distance on the map between Yappy city and Quiet city is 23 cm.
jekas [21]

The actual distance between Yappy city and Quiet city when it is 23 cm in map is 9.2 miles.

What is scaling ?

It is the technique to resize drawing with comparing to actual size of object which uses proportion or ratio. For example, Mapping of earth, drawing prototype of automobiles.

It is given that :

The distance on the map between Yappy city and Quiet city is 23 cm

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5cm = 2 miles

now, for 1 cm on map it is equal to 2/5 miles of actual distance.

Therefore to find the actual distance of 23 cm in map we simply multiply 23 with 2/5 :

actual distance :

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Therefore, the actual distance between Yappy city and Quiet city is 9.2 miles.

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5 0
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