Which equation represents a circle with a center of (6,-3) and a radius of 4?

Given: hf || jk; hg ? jg prove: fhg ? kjg to prove that the triangles are congruent by asa, which statement and reason could be used as part of the proof? fgh ? kgj because vertical angles are congruent. jkg ? hfg because vertical angles are congruent. fhg ? jkg because right angles are congruent. hfg ? kjg because alternate interior angles are congruent.

Asphere has a diameter of 10 in. what is the volume of the sphere?

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!