Find the common ratio for the geometric sequence.1, -3, 9, -27, 81, ...
A. 3
B. -3
C. -4
D. 81
Answer: B
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Write the slope-intercept form of the equation for the line passing through the given pair of points.(-5, 2) and (-5, 8)
A. 8x + 2y = 0 B. 2x + 8y = 0 C. y = 2 D. x = -5
Find an expression, in factored form, for the area of the shaded region.
A. (x + 4)(x + 8) B. (x - 3)(x - 9) C. (x + 3)(x + 9) D. (x + 5)(x + 7)
Solve. Express the result in scientific notation. If necessary, round the decimal factor to two decimal places.A business projects next year's profits to be $174,000,000. Write this number in scientific notation.
A. 1.74 × 10-9 B. 1.74 × 107 C. 1.74 × 108 D. 1.74 × 109
Solve the problem.A ball is thrown vertically upward with an initial velocity of 128 feet per second. The distance in feet of the ball from the ground after t seconds is 
For what intervals of time is the ball less than 240 above the ground (after it is tossed until it returns to the ground)?
A. between 0 and 2.5 seconds and between 5.5 and 8 seconds B. between 0 and 3 seconds and between 5 and 8 seconds C. between 0 and 3.5 seconds and between 4.5 and 8 seconds D. between 3 and 5 seconds