A 26.5 foot pole is secured to the ground by support wires. Wire A has an angle of depression of 28 degrees , and wire B has an angle of depression of 53 degrees

Determine whether the set of whole numbers is closed under addition. explain why the set is or is not closed. give an example.

14 pointslet x be the seats in the small van and y the seats in the large van. how many seats does the large van have? a company uses two vans to transport worker from a free parking lot to the workplace between 7: 00 and 9: 00a.m. one van has 9 more seats than the other. the smaller van makes two trips every morning while the larger one makes only one trip. the two vans can transport 69 people, maximum.how many seats does the larger van have?

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=