In the figure, m z1 =(2x)and m
2
=(x +39)
(a) write an equation to find x. make sure you use an "=" sign in your answer.
equation:
xs ?
(b) find the degree measure of each angle.
x
5
?
m21=1
m22=1

Which statement is not always true for a parallelogram? (a) opposite sides are congruent. (b) diagonals bisect each other. (c) it has 4 congruent angles. (d) consecutive angles are supplementary.

Describe in detail how you would construct a 95% confidence interval for a set of 30 data points whose mean is 20 and population standard deviation is 3. be sure to show that you know the formula and how to plug into it. also, clearly state the margin of error.

The value √10 and √15 are plotted on the number line