EMERGENCY Fill in the reason that justifies the step to solve for x in the diagram.
Given: QS = 42
QR + RS = QS
2x
R
A. Division Property of Equality
B. Segment Addition Postulate
C. Simplify.

Given f(t) = 282 - 53 +1, determine the function value f(2). do not include f(z) = in your answer

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

10% of 1,900,000. show me how you got the answer