Malik is designing a bicycle. He knows that he wants each spoke on the tires to be 8 inches long and the tire to be 2 inches thick.

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in