Find a value of a so that f is continuous at c, or indicate this is impossible.f(x) = 
A. -5
B. Impossible
C. 20
D. 5
Answer: A
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Solve.A bakery makes Chocolate Chip and Toffee Chunk cookies. Each batch of Chocolate Chip cookies requires 3 hours of labor and each batch of Toffee Chunk cookies requires 4 hours of labor. Each day, the company has at most 31 hours of labor available. Write an inequality that describes the company's options for the number of batches, C, of Chocolate Chip cookies and the number of batches, T, of Toffee Chunk cookies that the company makes in a day. Can the company make 3 batch(es) of Chocolate Chip cookies and 5 batch(es) of Toffee Chunk cookies in a day?
A. 3C + 4T ? 31; no B. 4C + 3T ? 31; yes C. 3C + 4T ? 31; no D. 3C + 4T ? 31; yes
Identify ? and ? in the following expression which is the right side of the formula for cos (? - ?).cos 
cos 
+ sin 
sin 
A. ? = 
, ? = 
B. ? = 
, ? = 
C. ? = 
, ? = - 
D. ? = - 
, ? = 
Solve the problem.The resistance of a wire varies directly as the length of the wire and inversely as the square of the diameter of the wire. A 20 foot length of wire with a diameter of 
has a resistance of 
What would the resistance be for a 
length, with diameter 
of the same kind of wire ?
A. 612 ohms B. 597.5 ohms C. 600 ohms D. 593 ohms
Use the FOIL method to find the product. Express the product in descending powers of the variable.(-4x2 + 2)(-4x2 - 8)
A. -8x4 + 24x2 - 16 B. 16x4 + 24x2 - 16 C. 16x4 + 24x2 + 24 D. -8x4 + 24x2 + 24