Evaluate the polynomial.2x2 - y2 + 2xy for x = -2 and y = -6
A. -4
B. -52
C. -68
D. 68
Answer: A
You might also like to view...
Graph the function.Graph two periods of the function f(x) = -cot 
+ 1.
A. 
B. 
C. 
D. 
Find the limit, if it exists. 
What will be an ideal response?
Determine the degree of each term of the polynomial.36k3m + 84k2m2 + 49km3
A. 36k3m: degree 1; 84k2m2: degree 2; 
B. 36k3m: degree 3; 84k2m2: degree 2; 
C. 36k3m: degree 36; 84k2m2: degree 84; 
D. 36k3m: degree 4; 84k2m2: degree 4; 
The experiment described suffers from at least one flaw in design. Identify the flaw and tell how the experiment can be improved.A nutritionist would like to test two different diets for their effects on arthritis. She obtains a random sample of 100 arthritis sufferers. She asks them to choose whether they would like to follow diet A (which is a particular type of vegetarian diet) or diet B (which is a particular type of nonvegetarian diet). After following their chosen diet for a two-month period, each person is asked to assess any changes in their arthritis. The changes for the two groups are compared.
What will be an ideal response?