Solve the problem. If necessary, round to the nearest tenth.A painter leans a ladder against one wall of a house. At what height does the ladder touch the wall?

A. 3.0 ft
B. 29.7 ft
C. 184.5 ft
D. 19.2 ft

Answer: D

Mathematics

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Provide an appropriate response.What does it mean for an observed difference to be statistically significant at the 0.01 level?

A. The probability of the observed difference occurring by chance is 1 in 100 or more. B. The probability of the observed difference occurring if the alternative hypothesis is true is 1 in 100 or more. C. The probability of the observed difference occurring if the alternative hypothesis is true is 1 in 100 or less. D. The probability of the observed difference occurring by chance is 1 in 100 or less.

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Mathematics

Find the center, transverse axis, vertices, foci, and asymptotes of the hyperbola.49y2 - 16x2 = 784

A. center at (0, 0)
transverse axis is y-axis
vertices: (0, -4), (0, 4)
foci: (- , 0) , (, 0)
asymptotes of y = -  and y =
B. center at (0, 0)
transverse axis is y-axis
vertices at (0, -4) and (0, 4)
foci at (0, - ) and (0, )
asymptotes of y = -  and y =
C. center at (0, 0)
transverse axis is x-axis
vertices: (-7, 0), (7, 0)
foci: (- , 0) , (, 0)
asymptotes of y = -  and y =
D. center at (0, 0)
transverse axis is x-axis
vertices: (-4, 0), (4, 0)
foci: (-7, 0), (7, 0)
asymptotes of y = -  and y =