Multiply or divide. Simplify, if necessary.
A. 30 lb 1 oz
B. 33 lb 1 oz
C. 35 ft 0 oz
D. 6 lb 1 oz
Answer: B
Mathematics
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Evaluate the function f at the indicated value.
{7x + 3, if x ? 02 - 7x, if 0 < x < 7x, if x ? 7
A. 59 B. 7 C. 8 D. -54
Mathematics
Does the system have one solution, no solution, or an infinite number of solutions? 2x - y = 5-4x + 2y = -18
A. One B. Infinite number C. No Solution
Mathematics
Use the graph of the rational function f(x) to complete the statement.As x?3+, f(x)? 
. 
A. +? B. 3 C. 0 D. -?
Mathematics
Perform the indicated operations and express your answer in the form a + bi. 
A. 5i
B. -i
C. ±5
D. -5i
Mathematics