2. A 30 foot pendulum is let go at a 30 degree angle, as shown below. How far is the bob from the center line (the distance labeled d below), when the pendulum starts?
Note: The bob is the thing that hangs on the end of a pendulum.
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30 feet
30°
Center
line
d

Franco wants to double the volume of the cone. what should he do?

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

The first-serve percentage of a tennis player in a match is normally distributed with a standard deviation of 4.3%. if a sample of 15 random matches of the player is taken, the mean first-serve percentage is found to be 26.4%. what is the margin of error of the sample mean? a. 0.086% b. 0.533% c. 1.11% d. 2.22%