Multiply the polynomials using a special product formula. Express the answer as a single polynomial in standard form.(10x + 7)(10x - 7)
A. 100x2 + 140x - 49
B. x2 - 49
C. 100x2 - 140x - 49
D. 100x2 - 49
Answer: D
Mathematics
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Use simple probability to complete the exercises.You are dealt one card from a standard 52-card deck. Find the probability of being dealt an ace or a 9.
A. 
B. 10
C. 
D. 
Mathematics
Write the expression in exponential form. Assume that all variables represent positive real numbers. 
A. x5/2 B. x2/5 C. x-2/5 D. x3
Mathematics
Solve.Suppose that you have c credits. Your roommate has 8 less credits than you. How many credits does your roommate have?
A. 8 - c
B. c - 8
C. 
D. c ÷ 8
Mathematics
Fill in the blank with one of the words or phrases listed below.
The process of writing a rational expression in lowest terms is called 
.
A. rational expression B. reciprocals C. least common denominator D. simplifying
Mathematics