Factor the trinomial, or state that the trinomial is prime.15x2 - 16x + 4
A. (5x - 2)(3x - 2)
B. (15x + 2)(x + 2)
C. (5x + 2)(3x + 2)
D. prime
Answer: A
Mathematics
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Find the volume of the described solid.The base of a solid is the region between the curve y = 5cos x and the x-axis from x = 0 to x = ?/2. The cross sections perpendicular to the x-axis are squares with diagonals running from the x-axis to the curve.
A. 
?
B. 
?
C. 6?
D. 
?
Mathematics
Use the quadratic formula to find the exact solutions.x2 + 6x = 16
A. -2, 8 B. -8, 2 C. 8, 2 D. -8, -2
Mathematics
Suppose the point (2, 4) is on the graph of y = f(x). Find a point on the graph of the given function.The reflection of the graph of y = f(x) across the x-axis
A. (2, 4) B. (-2, 4) C. (-2, -4) D. (2, -4)
Mathematics
Write the quotient in the standard form.
A. 1 + 
i
B. 
i
C. 
i
D. 1 + 
i
Mathematics