Use a graphing calculator to determine which expression completes the identity.The expression 
is to be the left hand side of an equation that is an identity. Which one of the following four expressions can be used as the right hand side of the equation to complete the identity?
A. tan ?
B. sec ?
C. cos ?
D. csc ?
Answer: D
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Solve the problem.The appliance store where the Scott family shops offers a 6% discount for paying cash. The Scott family received a discount of $52. What was their total bill before the discount?
A. $866.67 B. $312.00 C. $3.12 D. $8.67
Use all applicable terms to classify the given number (Natural, Whole, Integer, Rational, Irrational).-7.5
Fill in the blank(s) with the appropriate word(s).
Factor completely, or state that the polynomial is prime.x3 - 3x2 - 16x + 48
A. (x - 3)(x - 4)2 B. (x + 3)(x + 4)(x - 4) C. (x - 3)(x + 4)(x - 4) D. prime
Translate the problem to a system of equations, then solve using matrices.How many liters (L) of a 10% alcohol solution must be mixed with 30 L of a 70% solution to get a 40% solution?
A. 6 L B. 30 L C. 3 L D. 60 L