Use Descartes' Rule of Signs to determine the possible number of positive real zeros and the possible number of negative real zeros for the function.f(x) = 8x6 - 5x4 - 6x3 + 6x2 - 5x
A. 1 or 3 positive; 2 negative
B. 0 or 2 positive; 1 or 3 negative
C. 0 or 2 positive; 0 negative
D. 1 or 3 positive; 0 or 2 negative
Answer: D
You might also like to view...
Answer the question.Which of the following statements regarding the exponential function f(x) = ax is true?
A. The graph of f(x) = ax falls from left to right if a > 1 and rises from left to right if 0 < a < 1. B. The graph of f(x) = ax rises from left to right if a > 1 and falls from left to right if 0 < a < 1. C. The graph of f(x) = ax rises from left to right for any a > 0. D. The graph of f(x) = ax falls from left to right for any a > 0.
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 is
A. not an experiment. B. double-blind. C. blind, but not double-blind. D. not blind. E. none of these
Convert the Indo-Arabic numeral to the indicated form.1510; Babylonian
A. 
B. 
C. 
D. 
Solve the problem. Round to the nearest cent.Find the sales tax on an item costing $25.51 if the tax rate is 6.5%.
A. $1.66 B. $1.40 C. $1.91 D. $16.60