Solve the logarithmic equation.log2(x + 2) + log2(x - 2) = 3
A. 12
B. 2
C. 
D. 
Answer: B
Mathematics
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Find the triple scalar product (u x v) ? w of the given vectors.u = 4i + 2j - k; v = 10i + 8j - 6k; w = 7i + 10j - 3k
A. 124 B. 76 C. 68 D. -348
Mathematics
Magazine circulation after t years is modeled by the function
.
?
When was the circulation increasing at the fastest rate? Round your answer to two decimal places.
?
A. After 4.90 years B. After 3.35 years C. After 3.67 years D. After 3.54 years
Mathematics
Solve the equation.3x(x + 9) = (2x + 8)(x + 9)
A. -8 B. -9, 8 C. 8 D. 9, -8
Mathematics
Tell whether the statement is true or false.Some real numbers are integers.
A. True B. False
Mathematics