Show by substitution whether the number r is a solution of the corresponding quadratic equation.x2 + 8x - 20 = 0; r = 2
A. Yes
B. No
Answer: A
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Solve.On a house plan, the floor area of a room measures 
in. by 
in. If 
in. is equal to 1 ft on the drawing, what are the actual dimensions of the room?
Fill in the blank(s) with the appropriate word(s).
Provide an appropriate response.The graph of y = x3 is symmetric about the
A. y-axis only. B. x-axis only. C. origin only. D. x-axis, y-axis, the origin, and the line y = x. E. none of the above
Solve the problem.Levi borrowed $6944 at 4% simple interest for 6 months. How much will the interest amount to? What is the total amount that Levi will have to pay back at the end of 6 months? Round answers to the nearest cent if necessary.
A. $140.05; $7084.05 B. $162.03; $7106.03 C. $115.73; $7059.73 D. $138.88; $7082.88
Convert the temperature.63°F = °C
A. 145.4°C B. 17.2°C C. 3.0°C D. 81.4°C