2 points Assume

1 point The cables attached to a TV relay tower are 100 m long. They meet level ground at an angle of 60.0°, as in the figure below. Find the height (in m) of the tower. (Round your answer to three significant digits.)

1 point Two small window air conditioner units were purchased and put into opposite sides of a house. One air conditioner was 9,000 Btu and the other, 12,000 Btu. What is the ratio of the 9,000-Btu to the 12,000-Btu air conditioner?

1 point Find the absolute value of (−6) + (+1) + (+3) + (−2) + (−2) + (−5) + (−2) + (+7).

1 point The radius of a gear is 20.0 cm. It turns through an angle of 240.0°. What is the distance a point travels on the surface of the gear (in cm)? (Round your answer to three significant digits.)

1 point Find the absolute value of (−7) + (+1) + (+3) + (−2) + (−2) + (−3) + 1 + 2.

1 point A piece of 16-gauge steel has been cut into the shape of a trapezoid with height 14.0 cm. and bases 23.0 cm. and 29.0 cm. What is the area of the trapezoidal piece of steel (in cm2)? (Use the rules for working measurements to give your answer to the appropriate accuracy and/or precision.)

1 point A circular hole is to be made on the side of a metal wall.  If the area of the hole is to be 90.0 , what must the radius be?  Use the rules for working with measurements to give your answer to the appropriate accuracy and/or precision.

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 Find the slope m of the line  25 =