The graph of a function is given. Determine whether the function is increasing, decreasing, or constant on the given interval.(- 
, 0)
A. decreasing
B. increasing
C. constant
Answer: B
Mathematics
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Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.When a number is subtracted from -7, the absolute value of the difference is more than 3. Use interval notation to express the set of all numbers that satisfy this condition.
A. (-?, -10] ? [-4, ?) B. (-10, -4) C. (-?, -10) ? (-4, ?) D. (-?, -4) ? (10, ?)
Mathematics
Find the indicated quantity.n, when a1 = 312, an = 52, and d = -20;
A. 14 B. 11 C. 13 D. 12
Mathematics
Find n for the given value of an in the arithmetic sequence.an = 433; 1, 9, 17, . . .
A. n = 57 B. n = 54 C. n = 53 D. n = 55
Mathematics