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.4 - 5x2 = -3x + 3
A. Two different imaginary-number solutions
B. Two different real-number solutions
C. One real solution
Answer: B
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Solve the problem. Round to the nearest tenth unless indicated otherwise.The volume V of a given mass of gas varies directly as the temperature T and inversely as the pressure P. If V = 180.0 in3 when T = 300° and P = 20 lb/in2, what is the volume when T = 210° and P = 15 lb/in2?
A. 168.0 in3 B. 158.0 in3 C. 128.0 in3 D. 188.0 in3
Solve the problem.To estimate the ideal minimum weight of a woman in pounds multiply her height in inches by 4 and subtract 130. Let W = the ideal minimum weight and h = height. W is a linear function of h. Find the ideal minimum weight of a woman whose height is 62 inches.
A. 118 lb B. 378 lb C. 120 lb D. 130 lb
Find the unknown number in the proportion. Round answer to the nearest hundredth when necessary.
= 
A. x = 30.38 B. x = 1.8 C. x = 2.25 D. x = 0.03
Perform the conversion. Round to the nearest hundredth when necessary.53 kg to lb
A. 134.62 lb B. 116.60 lb C. 23.85 lb D. 56.18 lb