Translate the phrase to an algebraic expression. Use n as the number unless otherwise indicated.negative five increased by the sum of x and y
A. -5 + x - y
B. -5 - (x + y)
C. -5 + (x + y)
D. 5 + (x + y)
Answer: C
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Use the graph of a quadratic function to find the solution set of the equation or inequality. For a solution set that involves an interval, use interval notation.-x2 + 6x - 9 < 0
A. ? B. (-?, 3) ? (3, ?) C. x = 3 D. (-?, ?)
Solve the problem.The intensity of light from a light source varies inversely as the square of the distance from the source. Suppose the the intensity is 40 foot-candles at a distance of 10 feet. What will the intensity be at a distance of 22 feet? Round your answer to the tenths place.
A. 8.5 foot-candles B. 7.7 foot-candles C. 8.3 foot-candles D. 8.0 foot-candles
Evaluate the following determinant.
A. 7 B. -3 C. -2 D. 8 E. 2
Use the properties of radicals to simplify the following expression.
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A. 
B. 
C. 
D. 
E. 