Find the product.(4a - 7)2
A. 16a2 + 49
B. 16a2 - 56a + 49
C. 4a2 - 56a + 49
D. 4a2 + 49
Answer: B
Mathematics
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A set of data items is normally distributed with a mean of 60. Determine the z-score for the data point given, if the standard deviation is as given.data item: 69; standard deviation: 9
A. 69
B. 
C. 1
D. 9
Mathematics
Integrate the function.
dt
A. - 
+ C
B. 
+ C
C. - 
+ sin-1 9t + C
D. - 
+ C
Mathematics
Multiply. Express the product in lowest terms.
? 
A. 
B. 
C. 
D. 
Mathematics
Find the quantity indicated.x varies inversely as the square of y. If x = 4 when y = 6, find x when y = 3.
A. 2 B. 36 C. 16 D. 32
Mathematics