Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 33p
B. 
C. 8
D. 
Answer: B
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Determine the intervals on which the function is increasing, decreasing, and constant.
A. Increasing on (-3, 0); Decreasing on (-5, -3) and (2, 5); Constant on (0, 2) B. Increasing on (-3, -1); Decreasing on (-5, -2) and (2, 4); Constant on (-1, 2) C. Increasing on (-3, 1); Decreasing on (-5, -3) and (0, 5); Constant on (1, 2) D. Increasing on (-5, -3) and (2, 5); Decreasing on (-3, 0); Constant on (0, 2)
Express the number in scientific notation.0.000487
A. 4.87 × 10-5 B. 4.87 × 104 C. 4.87 × 10-4 D. 4.87 × 10-3
Verify the identity.(sec x + tan x)2 = 
What will be an ideal response?
Use the REGRESSION feature on a graphing calculator.The paired data below consists of the temperature on randomly chosen days and the amount of a certain kind of plant grew (in millimeters).
Find the linear function that predicts a plant's growth as a function of the temperature. Round your answer to two decimal places.
A. y = - 0.06 x2 + 7.20x - 191.23 B. y = - 9.19x3 + 0.11x2 - 2.90x + 6.54 C. y = 14..57x + 0.21 D. y = 0.21x + 14.57