Evaluate the variable expression.5x, when x = 3
A. 35
B. 15
C. 53
D. 8
Answer: B
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Find the first four nonzero terms in the Maclaurin series for the function.f(x) = x sin(3x)
A. 3x - 
x4 + 
x6 - 
x8 + . . .
B. 3x - 
x3 + 
x5 - 
x7 + . . .
C. 3x2 + 
x4 + 
x6 + 
x8 + . . .
D. 3x2 - 
x4 + 
x6 - 
x8 + . . .
Solve the problem.A person is watching a car from the top of a building. The car is traveling on a straight road directly toward the building. When first noticed, the angle of depression to the car is 26° 53'. When the car stops, the angle of depression is 42° 31'. The building is 240 feet tall. How far did the car travel from when it was first noticed until it stopped? Round to the nearest foot.
A. 412 ft B. 191 ft C. 212 ft D. 238 ft
Determine the x- and y-intercepts on the graph of the equation.y = 7.5x + 30
A. x-intercept is 4; y-intercept is -30 B. x-intercept is -7.5; y-intercept is 7.5 C. x-intercept is -30; y-intercept is -4 D. x-intercept is -4; y-intercept is 30
Choose the inequality that matches the graph.
A. y ? x2 + 4x + 4 B. y > x2 + 4x + 4 C. y ? x2 + 4x + 4 D. y < x2 + 4x + 4