What is the function called?
a. Absolute value
b. Cubic
c. Square root
d. Piecewise
b. Cubic
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A tamoxifen study claims that a combination of chemotherapy and the hormone therapy tamoxifen is more effective than tamoxifen alone in preventing breast cancer. In the study, a group of researchers from the U.S. and Canada studied 1477 postmenopausal women with early-stage breast cancer. The women were randomly assigned to one of three study groups. Group A (361 patients) received tamoxifen alone on a daily basis for five years. Group B (566 patients) received chemotherapy and tamoxifen for six months, and then completed five years of tamoxifen treatment. Group C (550 patients) received chemotherapy alone for six months followed by five years of tamoxifen treatment. All 1477 patients knew which treatment they were receiving.This study can best be described as a
A. survey using stratified sampling. B. randomized controlled experiment. C. census. D. survey using quota sampling. E. survey using simple random sampling.
Determine whether the given ordered pair is a solution of the given equation.3x - 5y = 34; (3, 5)
A. No B. Yes
Solve the equation by completing the square.x2 + x + 4 = 0
A. 4, -4 B. 1, 4 C. 0, 4 D. No real solution
Write 
in the form f (x) = (x - k)q(x) when k = -3.
A. 
B. 
C. 
D. 
E. 