Josephine is constructing a circle circumscribed about triangle XYZ. She uses the following sequence of steps to construct the circle. She constructs the perpendicular bisectors of two sides.
She finds their point of intersection, P.
She uses a compass, with the fixed end on X, to draw a circle passing through point P.
Did Josephine make any errors while constructing the circle?

A.
Yes, she should have found the perpendicular bisectors of all 3 sides.
B.
Yes, she should have constructed the angle bisectors.
C.
Yes, she should have placed the compass with the fixed end on P and drawn a circle through point X.
D.
No, she did not make any errors.

Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.