Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions exist.x2 + 8x + 5 = 0
A. Two different imaginary-number solutions
B. Two different real-number solutions
C. One real solution
Answer: B
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Use <, >, or = to make a true sentence.
A. > B. < C. =
Use the table to determine the probability. Round your answer to three decimal places if necessary.The following table displays the age, in years, and sex for the residents of a retirement home.Age (years)? 60-69 70-79 Over 79Total Male0.19?0.10.11?? Female0.20.1?0.3?? Total???1What is the probability that a resident is in the age group 60-69?
A. 0.42 B. 0.405 C. 0.39 D. 0.37
Find the volume of the specified solid. Use 3.14 as the approximate value of ?, and round your answer to the nearest tenth.A hemisphere with radius 0.55 yd
A. 0.7 yd3 B. 0.2 yd3 C. 0.3 yd3 D. 0.4 yd3
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. 
A. C ? 301.78° B. C < 301.78° C. C ? 65.49° D. C ? 65.49°