4 years ago

Which is the correct formula to calculate the volume of a sphere?

1 answer:

3 0

The volume for a sphere is 4/3Pi(r^3), or
4/3 • 3.14 (Pi estimated) • (r • r • r).

Pi is 3.14 estimated, and r is the radius (from a curve to the midpoint of a circle).

I hope this helps!

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The perimeter of a shape is 25.71 cm calculate the value of the radius X takes pie to be 3.142

Mariulka [41]

Answer:

5 cm

Step-by-step explanation:

Given a semicircle with perimeter 25.71 cm, we are required to find the radius of the circle.

Circumference of a Semicircle

=Length of the Circular part+Length of the diameter

$=\pi r+2r$

$If \: \pi=3.142, C=25.71\\Then:\\25.71=3.142r+2r\\r(3.142+2)=25.71\\5.142r=25.71\\r=25.71 \div5.142\\r=5cm$

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3 years ago

The State Board of Education has $2,183 to buy new calculators. If each calculator costs $37, how many calculators can the board

Tema [17]

Answer:

Step-by-step explanation:

They could buy 59

You solve this by dividing the total amount of money ($2183) by the other amount ($37) which is 59

5 0

3 years ago

Assume ABC Company deposits $90,000 with First National Bank in an account earning interest at 6% per annum, compounded and semi

Brilliant_brown [7]

Answer: A) $120,953

Step-by-step explanation:

The formula to calculate the compound amount (semi-annually):-

$A=P(1+\dfrac{r}{2})^{2n}$ , where P is principal amount , r is rate of interest and n is the number of time periods.

Given : Principal amount : P= $90,000

Rate of interest : 6% per annum = 0.06 per annum

Time period : n= 5 years

$A=(90000)(1+\dfrac{0.06}{2})^{2\times5}=120952.474141\approx 120,953$

Hence, the ABC will have $ 120,953 in the account after five years if interest is reinvested.

5 0

3 years ago

True or False?<br> 2 is a solution to 8m - 6 < 10<br> True<br> False

Nastasia [14]

Answer:

2 is not a solution

False

Step-by-step explanation:

8m - 6 < 10

Add 6 to each side

8m -6+6 < 10+6

8m < 16

Divide by 8

8m/8 <16/8

m < 2

m must be less than 2

2 is not a solution

7 0

3 years ago

Read 2 more answers

What is the domain of the given function?

kari74 [83]

B would be the correct answer

5 0

3 years ago