Z score = n - mu / d where mu = mean and d = std dev.
for n = 14 we hav ez score of (14-20) / 2.8 = -2.143
unusual as he is in the bottom 5%
The answer is 11 and 16
16-11=5
16*11=176
In order to calculate LCD of 4/9 and 7/12, you need to calculate LCM of their denominators which is 9 and 12, it would be 36
In short, Your Answer would be 36
Hope this helps!
2. A
3. False
4.False
5. D
6. 18
a 6 inch wide 10 inch long rectangle
if the rectangle on the screen is only 0.5 of the original, then you multiply 3 and 5 by 2
you will get 6 and 10