Given that the pair of triangles is similar, find the length of the side labeled n.

A. 0.5
B. 28.8
C. 288
D. 5


Answer: B

Mathematics

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Find u ? v, where ? is the angle between the vectors u and v. Round the answer to the nearest tenth. = 5,  = 5, ? = 

A. 12.5 B. 50 C. 21.7 D. 28.9

Mathematics

At one high school, students can run the 100-yard dash in a mean of 15.2 seconds with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Rounding to the nearest tenth of a percent as necessary, find the percent of times that are:Less than 15.2 seconds

A. 16% B. 68% C. 50% D. 34%

Mathematics

Transform the polar equation to an equation in rectangular coordinates. Then identify and graph the equation.r = 5 

A.

2 + y2 = ; circle,
radius , center at  in
rectangular coordinates
B.

x2 + 2 = ; circle,
radius , center at  in
rectangular coordinates
C.

x2 + y2 = 25; circle, radius 5, 
center at pole


D.

x = 5; vertical line 5 units to the right
of the pole



Mathematics

Solve the problem.The pharmacist mixed 5.76 grams of one drug with 4.916 grams of another drug. What was the weight of the mixture?

A. 11.776 g B. 9.832 g C. 11.52 g D. 10.676 g

Mathematics