Multiply the expressions.(8a - 1)2
A. 8a2 + 1
B. 8a2 - 16a + 1
C. 64a2 - 16a + 1
D. 64a2 + 1
Answer: C
Mathematics
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Evaluate.63
A. 18 B. -216 C. 36 D. 216
Mathematics
To solve this system using a matrix equation, which of the following matrices would be multiplied by the column matrix of the constants to solve for the variables?
?
? ?
A. 
B. 
C. 
D. 
E. 
Mathematics
Solve the problem.A boat can go 21 mph in still water. It takes as long to go 180 miles upstream as it does to go downstream 240 miles. How fast is the current?
A. 6 mph B. 1 mph C. 3 mph D. 2 mph
Mathematics
Solve for x.- 
(x - 4) - 
(x - 7) = x + 9
A. x = - 
B. x = - 
C. x = - 
D. x = - 
Mathematics