Solve.Frank can type a report in 3 hours and James takes 4 hours. How long will it take the two of them typing together?
A. 4 hr
B. 12 hr
C. 1
hr
D. 
hr
Answer: C
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Graph the solution set of the system of inequalities.
A. 
B. 
C. 
D. 
Find all zeros of the function and write the polynomial as a product of linear factors.f(x) = x3 + 5x2 + 12x + 18
A. f(x) = (x + 3)(x + 1 + i
)(x - 1 - i
)
B. f(x) = (x - 3)(x + 5 + 1i)(x + 5 - 1i)
C. f(x) = (x - 3)(x + 5 + 1i)(x - 5 - 1i)
D. f(x) = (x + 3)(x + 1 + i
)(x + 1 - i
)
Find an equation of the parabola described.Focus at (0, -5); directrix the line y = 5
A. y2 = -5x B. x2 = 20y C. x2 = -20y D. y2 = -20x
Decompose v into two vectors v1 and v2, where v1 is parallel to w and v2 is orthogonal to w.v = -2i - 3j, w = -2i + j
A. v1 = 
(-2i + j), v2 = - 
i - 
j
B. v1 = 
(-2i + j), v2 = 
i - 
j
C. v1 = 
(-2i + j), v2 = - 
i - 2j
D. v1 = 
(-2i + j), v2 = - 
i - 
j