2. justify each step of the proof.
conjecture: if 2(x2 + 5) = 60, then x is 5 or –5.
1. 2(x2 + 5) = 60 1.
2. 2x2 + 10 = 60 2.
3. 2x2 = 50 3.
4. x2 = 25 4.
5. x = ±5 5.

An assembly consists of two mechanical components. suppose that the probabilities that the first and second components meet specifications are 0.87 and 0.84. assume that the components are independent. determine the probability mass function of the number of components in the assembly that meet specifications. x

Adiverr from the university of florida women’s swimming and diving team is competing in the ncaa zone b championships

In a column proof the right column states your reasons