Solve (x + 9)2 = 25.
1 answer:
Answer:
x = -4 and x = -14
Step-by-step explanation:
Our equation is (x + 9)² = 25
Applying the square root property we would need to take the square root of both sides:
This give us x + 9 = ±5
Here we have two equations since taking the square root gives us a positive and negative value
Our first equation is x + 9 = 5, and to isolate the variable we would need to subtract 9 from both sides, giving us x = -4
Our second equation is x + 9 = -5, and to isolate the variable we would need to subtract 9 from both sides, giving us x = -14
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Corrected Question
a. Develop a probability distribution for the job satisfaction score of a senior executive.
b. Develop a probability distribution for the job satisfaction score of a middle manager.
c. What is the probability a senior executive will report a job satisfaction score of 4 or 5?
d. What is the probability a middle manager is very satisfied?
Answer:
(c)0.83
(d)0.28
Step-by-step explanation:
The percent frequency distributions of job satisfaction scores os give below:
(a)Probability distribution for the job satisfaction score of a senior executive.
(b)Probability distribution for the job satisfaction score of a middle manager.
(c)Probability a senior executive will report a job satisfaction score of 4 or 5
P(a senior executive will report a job satisfaction score of 4 or 5)
(d)Probability a middle manager is very satisfied
The probability a middle manager is very satisfied