Translate the equation into a sentence by using the phrase "varies directly" or "varies inversely". x = k
A. x varies inversely as the square root of t.
B. x varies directly as the square of t.
C. t varies directly as the square root of x.
D. x varies directly as the square root of t.
Answer: D
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Rewrite the quadratic equation in the form ax2 + bx + c = 0, then identify a, b, and c. (5x + 1)(9x - 4) = -8
A. a = 45, b = 11, c = 12 B. a = 45, b = 11, c = -4 C. a = 45, b = -11, c = 4 D. a = 45, b = -11, c = -4
Solve the problem.The table contains data that can be modeled by an exponential function of the form 
Use regression to determine an exponential function f that models this data. Round the coefficients to the nearest hundredth.
A. f(x) = (567.57)(0.17)x B. f(x) = (1.09)(527.34)x C. f(x) = (0.17)(567.57)x D. f(x) = (527.34)(1.09)x
Solve this equation.
- x = 6
A. ? B. {-7} C. {-7, -3} D. {-3}
Factor.216y3 - 343
A. (6y - 7)(36y2 + 42y + 49) B. (216y - 7)(y2 + 42y + 49) C. (6y - 7)(36y2 + 49) D. (6y + 7)(36y2 - 42y + 49)