Use the square root property to solve the equation.(2x + 5)2 = 49
A. ±27
B. 0, 1
C. 1, 6
D. -6, 1
Answer: D
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Find the LCM of 2, 3, and 10.
A. 60 B. 150 C. 30 D. 90
Solve the problem. Round your result to an appropriate number of significant digits.On a cloudy day, Sun Woo needed to know the height of a window in a building. Sun Woo positioned a mirror on the ground between himself and the building so that when he looked in the mirror, he saw the window. If the mirror was 19.43 cm from his feet and 34.69 m from the base of the building and Sun Woo's eye was 1.83 m above the ground, how high up on the building was the window located? Round to the nearest unit.
A. 102 m B. 327 m C. 1.02 m D. 3.27 m
Write a negation of the statement. No fifth graders play soccer.
A. Everybody plays soccer. B. Everybody does not play soccer. C. Some fifth graders play soccer. D. Fifth graders play soccer.
Find the magnitude of the indicated vector.If v = 3i + 6j, find the magnitude of -10v.
A. 30
B. 30
C. -30
D. 30i