Translate the phrase to an algebraic expression. Use n for the variable unless otherwise stated.four times the sum of some number and thirteen
A. 4(n - 13)
B. 4(n + 13)
C. 4n - 13
D. 4n + 13
Answer: B
Mathematics
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Solve the inequality. Graph the solution set and write it in interval notation.1.4x - 3.8 > 0.8x - 2.48
A. (-?, 2.1)
B. (2.1, ?)
C. (2.2, ?)
D. (-?, 2.2)
Mathematics
Evaluate the improper integral or state that it is divergent.
A. - 
ln 3
B. 2 ln 3
C. 
ln 3
D. 
ln 2
Mathematics
Solve.Big Bear Lake has a maximum depth of 3368 feet. The elevation of the lake's surface is 1171 feet above sea level. What is the elevation (with respect to sea level) of the deepest point in the lake?
A. 4539 feet below sea level B. -2197 feet below sea level C. 3368 feet below sea level D. -5565 feet below sea level
Mathematics
Find the derivative function of the given function.f(x) = 1 - 9x
A. f'(x) = 9
B. f'(x) = -9
C. f'(x) = -9x
D. f'(x) = 9
Mathematics