A 50-ft ladder is placed directly against the side of a large building. The base of the ladder is resting on ice, and it slips away from the building at a rate of 3 ft per minute. How fast is the top of the ladder slipping down the wall at the instant when the base of the ladder is 30 ft from the building?

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

What is the arc length of the subtending arc for an angle of 72 degrees on a circle of radius 4? o a. 8a oc. 16 t d. 8

Ofin . (2,4) (2,1) a. y= 2 b. x= 2 c. x= -2 d. y= 2x