Find the value of df-1/dx at x = f(a).f(x) = x2 - 5x + 6; a = 5
A. 5
B. 
C. 
D. 
Answer: D
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? is an acute angle and sin ? and cos ? are given. Use identities to find the indicated value.Given that sin ? = 
and cos ? = 
, find the value of csc ?.
A. 
B. 
C. 
D. 
Perform the indicated operation. Write the answer in simplest form. If the answer is an improper fraction, write it as a mixed number.6 ÷ 2
A. 2
B. 2
C. 16
D. 16
Each day Larry needs at least 10 units of vitamin A, 12 units of vitamin B, and 20 units of vitamin C. Pill #1 contains 4 units of A and 3 of B. Pill #2 contains 1 unit of A, 2 of B, and 4 of C. Pill #3 contains 
of A, 1 of B, and 5 of C.Pill #1 costs 8 cents, pill #2 costs 14 cents, and pill #3 costs 
Larry wants to minimize cost. What is the constraint inequality for vitamin A?
A. 3P1 + 2P2 + P3 ? 12 B. 4P1 + P2 + 10P3 ? 10 C. 4P2 + 5P3 ? 20 D. 8P1 + 14P2 + 11P3 ? 10
Find the derivative.f(x) = 4x2 - 3x + 1, find f'(x)
A. 4x - 3 B. 8x - 3 C. 4x2 - 3 D. 8x2 - 3