Find the product.(p + 9q)(p - 9q)
A. p2 - 18pq - 81q2
B. p2 - 81q2
C. p2 - 18q2
D. p2 + 18pq - 81q2
Answer: B
Mathematics
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Use properties for rational number operations to solve the equation.-4 + 4x = 8
A. 1
B. 
C. - 3
D. 3
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Write the number in scientific notation.475.9
A. 4.759 x 103 B. 4.759 x 10-2 C. 4.759 x 10-3 D. 4.759 x 102
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Rationalize the denominator and simplify.
A. 
B. 
C. 
D. 
Mathematics
A biased coin with Pr(H) = 
and Pr(T) = 
is thrown twice, find the probability of getting two tails.
A. 
B. 
C. 
D. 
E. none of these
Mathematics