Use a calculator to find an approximate solution to the equation. 
x = 18
A. -6.000
B. 2.631
C. -2.631
D. -0.380
Answer: C
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Use an algebraic approach to solve the problem. Find three consecutive integers whose sum is 51.
A. –16, –17, –18 B. 16, 15, 14 C. 18, 19, 20 D. 21, 22, 23 E. 16, 17, 18
Use the rules for exponents to rewrite the expression and then evaluate the new expression. 42 ? 45
A. 262,144 B. 16,777,216 C. 16,384 D. 1,048,576
Use the leading-term test to match the function with the correct graph.f(x) = -0.7x6 - x5 + 5x4 - 3x3 - 7x2 + x - 3
A. 
B. 
C. 
D. 
Decide whether the relation is a function, and give the domain and range.
A. Not a function; domain: (-?, ?); range: (-?, 5] B. Not a function; domain: (-?, 5]; range: (-?, ?) C. Function; domain: (-?, ?); range: (-?, 5] D. Function; domain: (-?, 5]; range: (-?, ?)