Perform the indicated operations.(3x2 + 5) - (x2 - 2) + (5x2 - 8x)
A. 7x2 - 8x + 7
B. 7x2 - 8x + 3
C. -3x2 - 8x + 7
D. -3x2 - 8x + 3
Answer: A
Mathematics
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Solve the problem.The velocity v (in m/s) of an object moving with acceleration a (in m/s2) is given by 
where t is the time (in seconds). Find the object's velocity as a function of time, if 
A. v = 
+ C
B. v = - 
+ C
C. v = 
+ C
D. v = 
+ C
Mathematics
Complete the indicated row operation.Replace R2 in 
with R1 + R2.
A. 
B. 
C. 
D. 
Mathematics
Solve by the substitution method. x + 7y = -49-4x + 8y = -56
A. {(7, 0)} B. {(0, -7)} C. {(1, -8)} D. ?
Mathematics
Find a simplified form of the difference quotient for the function.f(x) = 
A. 
B. 2x + h - 
C. 
D. 2x + h - 1
Mathematics