Answer:a=-3

Step-by-step explanation:

**Answer:**

The answer is D

192 pi = pi (5) squared h

**Step-by-step explanation:**

**Answer: **Balloon is 27.5 ft high.

**Step-by-step explanation:**

As per the give , we made a diagram (in attachment).

To find the vertical distance from the growth we consider entire triangle as right triangle , where height is making right angle with ground.

in right triangle,

hence, **balloon is 27.5 ft high.**

I thinks it’s 5 and 2 and 7 if it’s wrong that I am sorry

**Answer:**

a. 4.05 b. 3.84 c. 1.2475 and 1.1344 d. 1.1169 and 1.0651 e. We can say that the overall job satistaction of senior executives and middle managers is about 4; however, there is more variability in the job satisfaction for senior executives than in the job satisfaction for middle managers.

**Step-by-step explanation:**

a. (1)(0.05)+(2)(0.09)+(3)(0.03)+(4)(0.42)+(5)(0.41) = 4.05

b. (1)(0.04)+(2)(0.1)+(3)(0.12)+(4)(0.46)+(5)(0.28) = 3.84

c. We compute the variances as follow: = 1.2475 and = 1.1344

d. The standard deviation is the squared root of the variance, therefore, we have and

e. The expected value of the job satisfaction score for senior executives is very similar to the job satisfaction score for middle managers. We can say that the overall job satistaction of senior executives and middle managers is about 4; however, there is more variability in the job satisfaction for senior executives than in the job satisfaction for middle managers.