Factor the trinomial completely.20x2 + 6x - 2
A. (x + 2)(20x - 1)
B. (4x + 2)(5x - 1)
C. (4x - 2)(5x + 1)
D. (5x + 2)(4x - 1)
Answer: B
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Find the median for the data given.Number of video tapes borrowed each day: 70, 90, 284, 242, 350, 384
A. 202.5 video tapes B. 263 video tapes C. 284 video tapes D. 242 video tapes
Solve the problem.A certain expansion bridge normally measures 1,294 feet but expands by 1.6 feet on a hot day. If there were no expansion joints to absorb the elongation, the bridge might buckle as shown in the figure. Estimate the height of the bulge, AB. Note that chord BC is approximately the same as the length of arc BC. Round your answer to the nearest hundredth.
A. 1.6 feet B. 1,035.84 feet C. 64.37 feet D. 32.18 feet
In a right triangle, find the length of the side not given. Let c represent the length of the hypotenuse. Give an answer to the nearest tenth if necessary.b = 20 cm, c = 25 cm
A. a = 5 cm B. a = 45 cm C. a = 15 cm D. a = 225 cm
Write the quadratic function in the form y = a(x - h)2 + k.y = x2 - 6x
A. y = (x + 3)2 - 3 B. y = (x + 6)2 - 6 C. y = (x - 3)2 - 9 D. y = (x - 6)2 - 36