Answer:
216 ft is your answer
Step-by-step explanation:
10x5=50
6x5=30
6x8=48
6x8=48
8x5=40
Add all the sum, which would equal 216.
Hope this helps.
Answer:
a) 68.2%
b) 31.8%
c) 2.3%
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 530
Standard Deviation, σ = 119
We are given that the distribution of math scores is a bell shaped distribution that is a normal distribution.
Formula:

a) P(test scores is between 411 and 649)

b) P(scores is less than 411 or greater than 649)

c) P(score greater than 768)
P(x > 768)


Calculation the value from standard normal z table, we have,

I can’t see the image can you post it please or just tell me what the problem is
9. answer is 12
10. answer is 3.5
11. answer is 23
7k + 4 is the simplified version