## anonymous one year ago Question 1 (Multiple Choice Worth 4 points) A cylindrical rain barrel has a radius of 2 feet and holds a total of 30 cubic feet of water. How tall is the rain barrel? Use 3.14 for pi. Round your answer to the nearest hundredth. 1.58 ft 2.39 ft 3.57 ft 4.78 ft Question 2 (Multiple Choice Worth 4 points) A paper popcorn cone measures 4 inches in diameter and 9 inches high. What is the volume of popcorn that can be contained within this cone? Use 3.14 for pi. Round your answer to the nearest hundredth. 37.68 in3 39.45 in3 40.23 in3 41.90 in3

1. anonymous

@ali2x2 @pooja195 @Peaches15 @phi

2. anonymous

@mathmate

3. anonymous

@Michele_Laino

4. anonymous

fan and medal

5. Michele_Laino

the volume V of a cylinder, whose radius is r and whose height is h, is given by the subsequent formula: $\Large V = \pi {r^2}h \cong 3.14{r^2}h$

6. Michele_Laino

so the measure of the height h, is: $\Large h = \frac{V}{{3.14{r^2}}} = \frac{{30}}{{3.14 \times {2^2}}} = ...?$