Factor.16x2 - 81
A. (4x - 9)2
B. (4x + 9)2
C. (4x + 9)(4x - 9)
D. prime
Answer: C
Mathematics
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Use the figure to find the following.
? 
? 
A. ?
B. None of these
C. 
D. ?BEH
Mathematics
If possible, evaluate the expression by hand. If not, approximate the answer to the nearest hundredth.125-4/3
A. 
B. - 
C. 625
D. -625
Mathematics
Solve by using the quadratic formula:
A) No real number solution
B) –7, –1
C) –12, –4
D) –7, –9
E) –6, –4
Mathematics
Sketch the vector as a position vector and find its magnitude.v = -5i + 3j
A. 
= -2
B. 
= 2
C. 
= 8
D. 
= 
Mathematics