Solve cos x +sqr root of 2 = -cos x for x over the interval 0,2pi

Sienna planned a trapezoid-shaped garden, as shown in the drawing below. she decides to change the length of the top of the trapezoid-shaped garden from 32 ft to 24 ft. which expression finds the change in the scale factor?

If 3x+8=3x+8 is it one solution or no solution

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.