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algol13
3 years ago
7

What is the area of a circle whose radius is 4 ft?

Mathematics
2 answers:
pychu [463]3 years ago
5 0
It would be 50.24 ft
BTW in this case I used 3.14 for pi
BaLLatris [955]3 years ago
4 0

Answer:

The answer is 16π ft²

Step-by-step explanation:

What he need to do is "act" like there is a triangle in the circle, so the radius is 4, 4*2=diameter, 8, thats the length of the triangle, the height of the triangle is 4, now we find the area of the triangle, 8*4=32, 32/2=16

This is for anyone who needs it in the future

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Jade invested $13,500 at 5.2% interest, compounded semiannually, and she wants to know how much her investment will be worth in
rodikova [14]
Part 1: <span>What is the periodic interest rate of jade investment?

Each compounding period is done semi-annually, which means twice a year. Since the given interest rate is annual, then 5.2% divided by half should yield the period interest rate, which is 2.6%

Part 2: </span><span>How many compounding periods does Jade's investment offer in a year? how about in 8 years?

In 1 year, there are 2 compounding periods. In 2 years, there are 16 compounding periods.</span>
5 0
3 years ago
Read 2 more answers
The formula for the volume of a sphere is v= 4/3 m^3 what is the formula solved for r ?
Softa [21]

Answer:

            3V

r = ∛ ( ---------- )

            4π

Step-by-step explanation:

Please, enclose the fraction 4/3 inside parentheses, to eliminate any possibility of misreading this fraction.  Also note that this formula MUST include "pi," symbolized by π.

V = (4/3) π r³  This formula does NOT include "m," which is a unit of measurement, not a variable.

Our task is to solve this formula for the radius, r.

Divide both sides by (4/3) π, to isolate r³.  This results in:

      v               (4/3) π r³

-------------   =  -----------------

  (4/3) π             (4/3) π

                     

                       V              3V

Then r³ = --------------  =  --------

                   (4/3) π           4π

and r is found by taking the cube root of the above result:

            3V

r = ∛ ( ---------- )

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4 0
4 years ago
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Answer:

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6x28=168

5 0
3 years ago
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Pani-rosa [81]
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7 = n <=== ur number
6 0
3 years ago
How do you calculate the geometric mean of 5 and 125
katrin [286]
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</span>\sqrt{5*125}= \sqrt{625} =25<span>
</span>
6 0
3 years ago
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