Find the product AB.A = 
, B = 
A. 
B. 
C. 
D. 
Answer: D
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Provide an appropriate response.Explain why the following four statements ask for the same information.(i) Find the roots of f(x) = 3x3 - 4x - 1(ii) Find the x-coordinates of the intersections of the curve y = x3 with the line y = 4x + 1.(iii) Find the x-coordinates of the points where the curve y = x3 - 4x crosses the horizontal line 
.(iv) Find the values of x where the derivative of g(x) = 
x4 - 2x2 - x + 5 equals zero.
What will be an ideal response?
Solve the problem.An honest coin is tossed ten times. The probability that the number of heads is triple the number of tails is
A. 
.
B. 0.
C. 
.
D. 
.
E. none of these
Find the angle between the given vectors, to the nearest tenth of a degree.a = 3i + 5j, b = -4i + 6j
A. 64.7° B. 177.3° C. 65.7° D. 91.4°
Find 
by direct substitution.
A. -37 B. 42 C. -6 D. -26 E. limit does not exist