Find the function value.Find sin 
, given that cos ? = 
and 0° < ? < 90°.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Find the curvature of the space curve.r(t) = (7 t sin t + 7 cos t)i + 7j + (7t cos t - 7 sin t)k
A. ? = 
B. ? = 7t
C. ? = 
D. ? = - 
Mathematics
Solve the problem.A basket contains 6 oranges and 4 tangerines. A sample of 3 is drawn. Find the probability that 2 are tangerines and one is an orange.
A. 
B. 
C. 
D. 
Mathematics
Solve.The length of a wrench is inversely proportional to the amount of force needed to loosen a bold. A wrench 8 inches long requires a force of 220 lb to loosen a rusty bolt. How much force would be required to loosen the same bolt using a 6-inch wrench? (Round to the nearest whole number, if necessary.)
A. 303 lb B. 293 lb C. 241 lb D. 276 lb
Mathematics
Simplify and reduce to lowest terms.
+ 
A. m - 4
B. m + 2
C. m - 2
D. 
Mathematics