Complete the statements about circle Z. A central angle, such as angle
of circle Z, is an angle whose vertex is
and whose sides are radii of the circle.

Angle
is not a central angle of circle Z.

The degree measure of an arc is
the degree measure of the central angle that intercepts it.

The measure of is
degrees

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?

What are the solutions of the following system? y=-2x^2 y=x-2