Question

ghost

Answer 1

83.74=(1/3)x(3.14)x(r-squared)x(5 inches)

Now combine "like terms" 83.74=(5.233333)x(r-squared)

Answer 2

you can tell me simply how did they get 5.23333333? i tried everything and cant get it

Answer 3

Is this for volume of a cone?

Answer 4

Find the diameter of a cone that has a volume of 83.74 cubic inches and a height of 5 inches. Use 3.14 for pi.

Answer 5

The answer is 8 inches, but i want to know how they got 5.23333333

Answer 6

They had to simplify the equation.

The equation is \(\large\bf{83.74 = \frac {1}{3} (3.14)\times r^{2} \times 5}\)

We can't do anything at the moment to \(\bf{r^{2}}\) but we are able to simplify the numbers around.

Everything is being multiplied so changing around the numbers won't change anything.

\(\large\bf{83.74=\frac{1}{3} (3.14) \times 5 \times r^{2}}\)

We would multiply `3.14 and 5`.

\(\large\bf{3.14 \times 5 = 15.7}\)

\(\large\bf{83.74=\frac{1}{3}(15.7) \times r^{2}}\)

In which we now multiply by `1` then `divide by 3`.

\(\large\bf{\frac{15.7}{3} \approx 5.23...}\)

\(\large\bf{83.74 = 5.23333... \times r^{2}}\)

That is how `5.23` is obtained.

Answer 7

ok thanks

Answer 8

no problem