Question : Solve the following quadratic using any method : 2139505
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
173) Solve the following quadratic using any method: 36x2 - 144 = 0
A) x = ±2
B) x = 4
C) x = ±4
D) x = 2
174) Solve the quadratic for x: x2 - dx - 2p = 0
A) x =
B) x =
C) x =
D) x =
175) A laptop case has an area of 150 in2. If the length is 5 in. more than the width, find the dimensions of the case.
A) width is 15 in.; length is 20 inches
B) width is 5 in.; length is 30 inches
C) width is 6 in.; length is 25 inches
D) width is 10 in.; length is 15 inches
176) Solve the following quadratic using any method, rounding to the nearest hundredth if necessary: 5x2 + 4x = 8.
A) x = -0.93, 1.73
B) x = -0.8, 0.4
C) x = -0.4, 1.2
D) x = 0.93, -1.73
177) Solve the following quadratic using any method, rounding to the nearest hundredth if necessary: x2 + 4x + 13 = 0.
A) x = -2 + 3i, 2 - 3i
B) x = -2 + 9i, -2 - 9i
C) x = 2 + 3i, 2 - 3i
D) x = -2 + 3i, -2 - 3i
SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.
178) A square rug has an area of 110 ft2. What is the length of one side of the rug?
179) A pipe has an interior cross sectional area of 85 cm2. What is the interior diameter of the pipe? Round to the nearest tenth.