The is answer is definitely D, because he computed the total population of 3,320 in the survey of his targeted people that he specified which was grade school and high school. In order for his computation to work for his market analysis he used the radius of 5m and the 75% he wanted to achieve.
Its already in simplest form but you can convert it to a mixed fraction and get:
1 5/8
Answer:
Step-by-step explanation:
5
−322
=
5
−1024
=
−5
1024
<h3><u>The value of x is greater than or equal to -4.</u></h3>
(3x + 17) ≥ 5
Subtract 17 from both sides.
3x ≥ -12
Divide both sides by 3.
x ≥ -4
<h3>
Answer: 78.6</h3>
Work Shown:
![\begin{array}{|c|c|} \cline{1-2}\text{Number of People} & \text{Score}\\\cline{1-2}9 & 90\\\cline{1-2}18 & 80\\\cline{1-2}15 & 70\\\cline{1-2}\end{array}](https://tex.z-dn.net/?f=%5Cbegin%7Barray%7D%7B%7Cc%7Cc%7C%7D%20%5Ccline%7B1-2%7D%5Ctext%7BNumber%20of%20People%7D%20%26%20%5Ctext%7BScore%7D%5C%5C%5Ccline%7B1-2%7D9%20%26%2090%5C%5C%5Ccline%7B1-2%7D18%20%26%2080%5C%5C%5Ccline%7B1-2%7D15%20%26%2070%5C%5C%5Ccline%7B1-2%7D%5Cend%7Barray%7D)
Multiply across the rows to form a third column. Example: 9*90 = 810 in the first row.
![\begin{array}{|c|c|c|} \cline{1-3}\text{Number of People} & \text{Score} & \text{Number*Score}\\\cline{1-3}9 & 90 & 810\\\cline{1-3}18 & 80 & 1440\\\cline{1-3}15 & 70 & 1050\\\cline{1-3}\end{array}](https://tex.z-dn.net/?f=%5Cbegin%7Barray%7D%7B%7Cc%7Cc%7Cc%7C%7D%20%5Ccline%7B1-3%7D%5Ctext%7BNumber%20of%20People%7D%20%26%20%5Ctext%7BScore%7D%20%26%20%5Ctext%7BNumber%2AScore%7D%5C%5C%5Ccline%7B1-3%7D9%20%26%2090%20%26%20810%5C%5C%5Ccline%7B1-3%7D18%20%26%2080%20%26%201440%5C%5C%5Ccline%7B1-3%7D15%20%26%2070%20%26%201050%5C%5C%5Ccline%7B1-3%7D%5Cend%7Barray%7D)
The values in the third column add to 810+1440+1050 = 3300
Divide this over the total number of people which is 9+18+15 = 42
The mean is 3300/42 =78.571 approximately which rounds to 78.6