Two boats carrying marine researchers leave McMurdo port at the same time. One boat travels east at a speed of 12 mph. The other boat travels northeast at 16 mph. If both boats keep on the same course, how far apart will they be after 2 hours?
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Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.

What is the sum of the first 8 terms of the geometric series