Find point in translated system.P(x,y) = (-4, 7), h = , k = 6

A. (x', y') = (-4 + , 13)
B. (x', y') = ( + 4, -1)
C. (x', y') = (1, -4 - )
D. (x', y') = (-4 - , 1)


Answer: D

Mathematics

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Solve.Dave can hike on level ground 3 miles an hour faster than he can on uphill terrain. Yesterday, he hiked 37 miles, spending 2 hours on level ground and 5 hours on uphill terrain. Find his average speed on level ground.

A. 5 mph
B. 4 mph
C. 7 mph
D. 7 mph

Mathematics

At one high school, students can run the 100-yard dash in an average of 15.2 seconds with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are:At most 14.3 seconds

A. 16% B. 13.5% C. 50% D. 84%

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Find the points of inflection.f(x) = -x3 + 9x + 3

A. (-3, 9) B. (0, 3) C. (3, -3) D. (0, 9)

Mathematics

For the given graph, write the inequality in set-builder notation and interval notation.

A. {x|-6 ? x ? -2}, [-6, -2] B. {x|x ? -6 ? or x ? -2}, [-6, -2] C. {x|x > -6  or x < -2}, (-6, -2) D. {x|-6 < x < -2}, (-6, -2)

Mathematics