Solve and graph.4x > 4 and x + 5 < 5
A. (-1, 0)
B. ?
C. (0, 1)
D. (-1, ?)
Answer: B
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Find the number of subsets of the set.{14, 15, 16}
A. 6 B. 3 C. 8 D. 7
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.
Subtract.-2.2 - 0
A. 0 B. undefined C. -2.2 D. 2.2
Solve each problem.Mike's Bait Shop sells three types of lures: discount, normal, and professional. Location I sells 29 discount lures, 100 regular lures, and 30 professional lures each day. Location II sells 10 discount lures and Location III sells 60 discount lures each day. Daily sales of regular lures are 90 at Location II and 120 at Location III. At Location II, 11 expert lures are sold each day, and 40 expert lures are sold each day at Location III.Write a 
matrix that shows the sales figures for the three locations, with the rows representing the three locations. The incomes per lure for discount, normal, and professional lures are $3, $9, and $19, respectively. Write
a 
matrix displaying the incomes. Find a matrix product that gives the daily income at each of the three locations.
A. 
B. 
C. 
D. 