A 17-ft ladder is leaning against a building. If the base of the ladder is 5 ft from the base of the building, what is the angle of elevation of the ladder

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.