Use the quadratic formula to solve the equation. Simplify any radicals.(x + 5)(x - 8) = 4
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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For the given arithmetic series, what is Sn?a1 = 5, d = -5, and n = 11
A. -440 B. -880 C. -215 D. -220
Mathematics
Find each product.(4m - 11w)(4m + 11w)
A. 16m2 - 121w2 B. 16m2 - 88mw - 121w2 C. 4m2 - 11w2 D. 16m2 + 88mw - 121w2
Mathematics
Express the vector in the form ai + bj + ck.
if P1 is the point (1, 4, 1) and P2 is the point (3, 1, -3)
A. v = -2i + 3j - 4k B. v = -2i + 3j + 4k C. v = -2i - 3j + 4k D. v = 2i - 3j - 4k
Mathematics
Determine whether the given function is one-to-one. If it is one-to-one, find its inverse.f(x) = 7x2 + 6, x ? 0
A. f-1(x) = 
B. f-1(x) = 
C. not one-to-one
D. f-1(x) = 
Mathematics