Find the product.(7m + 4)2
A. 7m2 + 16
B. 7m2 + 56m + 16
C. 49m2 + 16
D. 49m2 + 56m + 16
Answer: D
Mathematics
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Use the right triangle shown below and find the missing length. Give an exact answer and a decimal approximation rounded to two decimal places. 
a = 11, b = 3
A. c = -
? -11.40
B. c = 
? 11.40
C. c = 99
D. c = 130
Mathematics
Evaluate the determinant.
A. -144 B. 144 C. -4 D. -12
Mathematics
Solve the equation for the indicated variable.4?r2 = A for r
A. r = ± 
B. r = ± 
C. r = ± 
D. r = 2?
Mathematics
Simplify the expression.
A. 
B. 
C. 
D. 
Mathematics