Simplify.|2 - 14| ? (-24) ÷ (-4)
A. 1152
B. -72
C. -1152
D. 72
Answer: D
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Find the curvature ? for the given function.r(t) = 12ti + (6 + 10 cos 
t)j + (7 + 10 sin 
)k
A. ? = 
B. ? = 
C. ? = 
D. ? = 
Answer the question.Suppose that a test for a disease correctly gives positive results for 95% of those having the disease and correctly gives negative results for 90% of those who don't have the disease. Suppose also that the incidence of the disease is 1%. If a person tests positive for the disease, what is the chance that they have the disease? Find the exact percentage.
A. 8.8% B. 13.4% C. 95% D. 10%
Find the vertices of the hyperbola.9y2 - 16x2 = 144
A. (-4, 0), (4, 0) B. (0, 4), (0, -4) C. (-3, 0), (3, 0) D. (0, 3), (0, -3)
Solve the problem. Express your answer in simplest form.Erika spent 
hr on her computer visiting the history channel and the discovery channel websites. She spent 
hr at the history channel website. How many hours did she spend at the discovery channel website?
A. 
hr
B. 
hr
C. 
hr
D. 
hr