Answer:
x=4
ME=9
AM=18
AE=27
Because m in the midpoint ME is double AM
2(4x-7)=5x-2 4(4)-7 5(4)-2 18+9
8x-14=5x-2 16-7 20-2 =27
<u>-5x -5x</u> =9 =18
3x-14=-2
<u> +14 +14</u>
<u>3x</u>=<u>12</u>
3 3
x=4
Answer:
The population mean (μ) = 26.
Step-by-step explanation:
a) Data and Calculations:
The population characteristics = 20 and 36
Total population of interest = 56 (20 + 36)
Number of groups in the population = 2
Therefore, the population mean (μ) = 56/2 = 28
b) Based on the parameters given in this example, the population mean equals the average of the group characteristic (attention span of individuals in minutes) or item of interest. The population mean is calculated by adding the values of the group characteristic and then dividing the result by the number of values.
Hint:
Use distributive property, then combine like terms.
I think you've got it from there :)
If you need more help, just comment on this.
If you still are confused, then see below.
Answer:
-45-22i+(10-15i)(5+3i)
-5-22i+50+30i-75i-45i
112i-45
B; simplify the equation and find the choice that matches
