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Aleks [24]
3 years ago
9

Which one is it and why? Please actual answers only

Mathematics
2 answers:
Andrej [43]3 years ago
7 0

Answer:

The first answer, 3(pi) km^2

Step-by-step explanation:

3 x pi squared determines the area

Bad White [126]3 years ago
4 0

Answer:

I believe that it is A

Step-by-step explanation:

I don't know how to explain it

I think it is just the formula for the area of a circle

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3.
irina1246 [14]
3)
Principal Amount = P = $7200
Interest rate = r = 4% = 0.04
Time = t = 8 years

Formula for compounding is:

A=P (1+r)^{t}

Using the values, we get:

A=7200 (1+0.04)^{8}=9853.70

Therefore, the compounded amount will be $9853.70 

4)
Principal Amount = P = $7200
Compounded Amount = A = $9853.70

Interest Earned = Compounded Amount - Principal Amount
So,
Interest Earned = 9853.70 - 7200 = $2653.70

Therefore, $2653.70 will be earned as interest over a period of 8 years.
5 0
3 years ago
Does anybody know this? 1/2 divided by 4/7
Stells [14]
The answer to the question is 7/8
7 0
3 years ago
Read 2 more answers
Subtract 3 from 8599 ​
Fynjy0 [20]

Answer:

8596, done lol just use a calculator online XD

4 0
2 years ago
A box contains 6 red and 5 blue marbles. Another box contains 5 red and 8 blue marbles. One box is selected at
dlinn [17]

Answer:

153\286

Step-by-step explanation:

A -box 1

B -box 2

B)- blue ball drawn

6 0
3 years ago
A building is known to be 192 feet tall. A ball is dropped from the top of the building. In how many seconds will the ball hit t
Archy [21]

Answer:

  • h = 0 when the ball hits the ground
  • about 3.464 seconds

Step-by-step explanation:

The formula gives h = 192 when t=0, so we assume that h represents the height above the ground. The ball will have a height of 0 when it hits the ground.

__

Using that in the equation, we can solve for t.

  0 = 192 -16t^2

  0 = 12 -t^2 . . . . . . divide by 16

  t^2 = 12 . . . . . . . . add t^2

  t = √12 = 2√3 ≈ 3.464 . . . . take the square root

It will take 2√3 seconds, about 3.464 seconds, for the ball to hit the ground.

5 0
3 years ago
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