Use the boundedness theorem to determine whether the polynomial function satisfies the given condition.The polynomial f(x) = x4 - x3 + 2x2 - 4x - 10 has no real zero less than -1.
A. Yes, the boundedness theorem shows that the polynomial has no real zero less than -1.
B. No, the boundedness theorem does not show that the polynomial has no real zero less than -1.
Answer: B
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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.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.
Solve the problem.Use Newton's method to estimate the one real solution of the equation 
. Start with 
Then, in each case find x2.
What will be an ideal response?
Solve the problem.The following table shows the market prices per pound that a trucker can get for his load of fruit in three cities: San Francisco (S.F.), Las Vegas (L.V.), and Los Angeles (L.A). 
The trucker has a load of 2000 pounds of peaches and 3000 pounds of apples. Write the information from the table as a 2 x 3 matrix B. Write a row matrix A for which the entries represent the number of pounds of each type of fruit in the truck. Find 
A.
C = 
B.
C = 
C.
C = 
D.
C = 
Solve the problem.Regrind, Inc. regrinds used typewriter platens. The cost per platen is $2.60. The fixed cost to run the grinding machine is $122 per day. If the company sells the reground platens for $4.60, how many must be reground daily to break even?
A. 40 platens B. 16 platens C. 61 platens D. 46 platens