A circle has a circumference of 10. It has an arc of length 9/2 What is the central angle of the arc, in degrees?

Aladder that is 20ft long is leaning against the side of a building. if the angle formed between the ladder and the ground is 75 degrees how far is the bottom of the from the base of the building?

Which of the following circles have their centers on the x-axis? check all that apply.

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3