Find the real or imaginary solutions by using the quadratic formula.5n2 = -10n - 2
A. 
B. 
C. 
D. 
Answer: C
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Use properties of exponents to simplify the expression. First, express the answer in exponential form. Then, evaluate the expression.23 ? 22
A. 25; 12 B. 5 ? 2; 10 C. 25; 32 D. 26; 64
Evaluate.
A. -7
B. 7
C. 5
D. -5
Sketch the graph of the function. Describe how the graph can be obtained from the graph of a basic logarithmic function.f(x) = ln x - 6
A. Shift y = ln x down 6 units
B. Shift y = ln x right 6 units
C. Shift y = ln x up 6 units
D. Shift y = ln x down 6 units
Solve the problem.In order for a chemical reaction to take place, the Fahrenheit temperature of the reagents must be at least 
Find the Celsius temperatures at which the reaction may occur. 
Round your answer to the nearest hundredth of a degree.
A. C ? 42.85° B. C ? 228.43° C. C < 228.43° D. C ? 42.85°