Use the distributive property to multiply. Then, if possible, simplify the resulting expression.4(a + b)
A. 4ab
B. 8ab
C. 4a + 4b
D. 4a + b
Answer: C
Mathematics
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The half-life of a certain radioactive substance is 9 years. What is the yearly decay factor? Round your answer to two decimal places. ?
A. 4.50 B. 1.56 C. 0.93 D. None of the above
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Use the table of values of f to estimate the limit.Let f(x) = 
, find 
f(x).
A. limit = 7.5 B. limit = 8 C. limit = 0 D. limit does not exist
Mathematics
Divide.
A. 294 B. 314 R 21 C. 309 R 13 D. 304
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Solve the system. 4x + 5y = -6 3x + 7y = 2
A. {(-4, -2)} B. ? C. {(-4, 2)} D. {(2, -4)}
Mathematics