1 point Round 636,534 to three significant digits.

1 point The cables attached to a TV relay tower are 110 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 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.

1 point Find the slope m of the line  

1 point. Divide.  

1 point Change 4500 cm2 to m2 .  [Hint: 1 m = 100 cm]

1 point How many ft2 are in a rectangle 13.6 m long and 7.6 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 5 + (-9) + 7 + (-3) + 9 + (-6) + (-8) + (-10).

1 point Divide.  

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.)