Answer:
a. addition property of equality
Step-by-step explanation:
2x was added to both sides
X-10 = 0 results in x = 10, and x + 8 = 0 results in x = -8.
The two solutions are x = 10 and x = -8
Answer:
a-6
Step-by-step explanation:
Answer:
a) 0.64
b) -1.13
Step-by-step explanation:
We are given the following information in the question:
Women:
Mean, μ = 64.2 inches
Standard Deviation, σ = 2.8 inches
We are given that the distribution of heights of women is a bell shaped distribution that is a normal distribution.
Men:
Mean, μ = 69.4 inches
Standard Deviation, σ = 3.0 inches
We are given that the distribution of heights of men is a bell shaped distribution that is a normal distribution.
Formula:

5.5 feet = 66 inches
a) z‑score for a woman 5.5 feet tall

b) z‑score for a man 5.5 feet tall

Answer:
3y^2 - (y + 2) (y - 2) = 0
<=> 3y^2 - (y^2 - 4) = 0
<=> 2y^2 + 4 =0
<=>y^2 + 2 = 0
=> Because y^2 is always equal or larger than 0, there is no real solution.
Hope this helps!
:)