Translate the sentence into an equation. If needed, use x to represent "a number."The sum of twice 7 and -19 is -5.
A. 2 ? 7 - (-19) = -5
B. 2 ? 7 + (-19) = -5
C. 2 ? 7 + (-5) = -19
D. 2 ? 7 = -19 + -5
Answer: B
Mathematics
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A. log8 
B. log4 
C. log4 
D. log4 (8 - z)
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Express the number in terms of i.
A. -6i
B. 6i
C. i
D. ±6
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Solve the problem.In the Smoky Mountains of Tennessee, the percent of moisture that falls as snow rather than rain is approximated by 
where P is the percent of snow moisture at an altitude h feet. What altitude corresponds to 6 percent snow moisture? Round to the nearest hundred feet.
A. about 3000 feet B. about 40,300 feet C. about 5400 feet D. about 1000 feet
Mathematics
Use a calculator to find the natural logarithm correct to four decimal places.ln 200
A. 73.8007 B. 0.1882 C. 2.3010 D. 5.2983
Mathematics