Find an exact value.sin 
A.
B.
C.
D. 
Answer: C
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Provide an appropriate response.Explain the mistake in the following problem:21 - (-2)5= 21 - 32= -11
A. There is no mistake. B. 25 is not 32. C. (-2)5 is -32, not 32. D. There is a subtraction error.
Solve the double inequality.5 < 2a + 5 ? 13
A. 0 ? a < 4 B. 0 < a < 4 C. 0 ? a ? 4 D. 0 < a ? 4
Find the unknown value in the percent proportion 
Round to the nearest tenth, if necessary.part = 20, whole = 8
A. percent = 250% B. percent = 25% C. percent = 125% D. percent = 40%
Solve the problem.A 3-oz serving of roasted, skinless chicken breast contains 140 calories, 27 grams of protein, and 3 grams of fat. A broccoli spear contains 50 calories, 5 grams of protein, and 1 gram of fat. A cup of whole milk contains 150 calories, 8 grams of protein, and 8 grams of fat. The amount of calories, protein, and fat in one serving of chicken breast can be represented by the matrix 
. Find the matrices B and M for the amounts of calories, protein, and fat in a broccoli spear and a cup of whole milk, respectively, and write the matrix 
which represents
the total calories, protein, and fat in 2 servings of chicken, 6 servings of broccoli, and 3 cups of whole milk.
A. 
B. 
C. 
D. 