Write the expression as the logarithm of a single number or expression with a coefficient of 1. Assume all variables represent positive numbers.3 ln (x + 3) - 6 ln (x2 + 7)
A. ln 
B. ln 
C. ln 
D. ln 
Answer: A
Mathematics
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Write the expression as a pure imaginary number.
A. ±13
B. 13i
C. -13i
D. -
i
Mathematics
Write the decimal in numbers.Three hundred ninety-one thousandths
A. 0.0391 B. 300.91 C. 0.391 D. 0.00391
Mathematics
Evaluate the expression without a calculator.
-4
A. - 
B. 
C. 
D. - 
Mathematics
Solve the problem.The length of a rectangle is 20 feet. For what widths is the perimeter less than 64 feet?
A. widths less than 24 ft B. widths less than 12 ft C. widths less than 22 ft D. widths less than 44 ft
Mathematics