2 points Find the volume of the cylindrical silo (in ft3) with a hemispherical top shown in the figure below. (Round your answer using the rules for working with working with measurements.)

1 point The area of a circle is    Find its radius.  Round the answer to four significant digits.

1 point Two small window air conditioner units were purchased and put into opposite sides of a house. One air conditioner was 6000 Btu and the other, 8000 Btu. What is the ratio of the 6000-Btu to the 8000-Btu air conditioner?

3 points Given

4 points Find the lateral surface area (LSA) and the volume (V) of the following frustum. Correct both answers to four significant bits. Slant height s = 3.25 m

1 point Round 0.000337567 to four significant digits.

1 point Round the following number to the nearest hundred. 11,649

2 points In the mid-20th century, engineers constructed a series of canals to move irrigation water from water sources to farming communities throughout the western United States. The volume of water a canal can move is partially dependent on its cross-sectional area. Suppose a canal is trapezoidal, 25.0 ft across the top and 15.0 ft across the bottom, with a planned depth of water of 10.0 ft as shown in the figure. Find the cross-sectional area of the canal when it is full (in ft2). (Use the rules for working with measurements give your answer to the appropriate accuracy and/or precision.)

1 point Round the following number to the nearest hundred. 10,649  

2 points Find the perimeter (in cm) and use Heron’s formula to find the area (in cm2) of the triangle. (Use the rules of working with measurements. Round the area to the same accuracy as the least accurate measurement. Round the perimeter to the same precision as the least precise measurement.)