Factor by grouping.4x2 - 20x - 28x + 140
A. (x - 5)(4x - 28)
B. (x - 5)(x - 7)
C. 4(x - 5)(x - 7)
D. 4(x + 5)(x + 7)
Answer: C
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Find the zeros of the function.f(x) = 3x2 + 11x + 6
A. 
and -3
B. -6 and -3
C. - 
and 3
D. - 
and -3
Solve the problem.A tower is supported by a guy wire 
long. The wire makes an angle of 
with respect to the ground, and the distance from the point where the wire is attached to the ground and the tower is 
Approximate the height of the tower to the nearest tenth of a foot.
A. 489.2 ft B. 391.8 ft C. 531.3 ft D. 332.5 ft
Solve the problem.Determine the minimum number of subintervals needed to approximate the integral
with an error less than 0.0001 using the Parabolic Rule.
A. 3 B. 6 C. 4 D. 2
Solve the equation.0.70x - 0.20(30 + x) = 0.30(30)
A. x = 40 B. x = 30 C. x = 15 D. x = 20