Answer:
$4.86
Step-by-step explanation:
2.97/11 =.27 .27 x 18= 4.86
Answer:
Step-by-step explanation:
324 ft squared
Answer:
20x
Step-by-step explanation:
20 x^3/ x^2
20 x x x
----------------
x x
Cancel the x's
20 x
---------
1
20x
Answer:
x 
15
Step-by-step explanation:
Answer:
52
Step-by-step explanation:
Given that :
Mean (m) = 78
Standard deviation (s) = 13
Score that is 2 standard deviations below the mean
Using the relation :
Zscore = (x - m) / s
2 standard deviations below the mean means a Zscore of - 2
Hence,
-2 = (x - 78) / 13
Cross multiply
-2 * 13 = x - 78
-26 = x - 78
x = - 26 + 78
x = 52
Score which is 2 standard deviations below the mean is 52
