Write the word phrase in symbols, using x as the variable.The product of a number and 3
A. 
B. 3x
C. 3 + x
D. 3 - x
Answer: B
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Provide an appropriate response.The "trapezoidal" sum can be calculated in terms of the left and right-hand sums as ? .
A. left-hand sum - right-hand sum
B. 
C. left-hand sum + right-hand sum
D. None of the above is correct.
Graph the parabola whose equation is given.y = x2 + 8x + 7
A. 
B. 
C. 
D. 
Simplify.
2
A. c2 + 
B. 2c + 
c + 
C. c2 + 
D. c2 + 
c + 
Solve the problem.An object is propelled vertically upward from the top of a 240-foot building. The quadratic function 
models the ball's height above the ground, 
in feet, t seconds after it was thrown. How many seconds does it take until the object finally hits the ground? Round to the nearest tenth of a second if necessary.
A. 2 seconds B. 9.6 seconds C. 4 seconds D. 1.6 seconds