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1 point The recommended safety angle of a ladder against a building is 77°. A

1 point The recommended safety angle of a ladder against a building is 79°. A

2 points Use the rules for working with measurements to give your answer to the appropriate accuracy and/or precision. Find the volume (in ) and the lateral surface area (LSA) (in ) of the storage bin.

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 22.5 , 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 Assume

1 point How many ft2 are in a rectangle 12.8 m long and 8.8 m wide?  [Hint: 1 m = 3.28 m] (A = lw. Round your answer to exactly three significant digits when necessary. Use the Metric and U.S. Conversion table provided below to find the conversion factor(s).)

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

1 point Solve the equation.  4x

1 point Perform the indicated operations.  (-10) + (-10) + (8) – (-4) – (-6) – (-10) + (-30).

1 point Find the distance AC across the river shown in the figure below.  [Hint: Law of Sines:  ]  (Round your answer to three significant digits.)