Factor completely.(r + s)2 - 4
A. (r + s - 2)2
B. (r + s + 2)2
C. 
2
D. (r + s - 2)(r + s + 2)
Answer: D
You might also like to view...
Give the genus of the object. If the object has a genus larger than 5, write "larger than 5."A fly swatter
A. genus 1 B. genus 0 C. larger than 5 D. genus 2
Find the modified quota asked for. Round your answer to two decimals.A university has 27 scholarships to be apportioned among the engineering students based on the enrollment in each department. There are three departments - Mechanical Engineering (M), Electrical Engineering (E), and Civil Engineering (C). The number of students in each department is given in the following table. 
Find the modified quota for the Civil Engineering Department using the divisor 27.
A. 5.52 B. 5.67 C. 5.72 D. 5.47
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.Which of the following is the most likely confounding
variable in this study? A. Only 1477 women were involved in the study. B. The three groups in the study were of different sizes. C. The doctors running the study were only from the U.S. and Canada. D. Only postmenopausal women were in the study. E. Only women were in the study.
Evaluate the line integral of f(x,y) along the curve C.f(x, y) = cos x + sin y, C: y = x, 0 ? x ? 
A. 
B. 0
C. 2
D. 2