The critical value corresponding to a level of significance of ? = 0.05 .
The probability density function of X is f (x) = 5 x6 over [1, ?)
1.820564
Mathematics
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Without graphing the function, determine its amplitude or period as requested.y = -2 cos xFind the period.
A. ?
B. 2
C. 
D. 2?
Mathematics
Solve the problem.A force of 688 lb is required to pull a boat up a ramp inclined at 18.0° with the horizontal. How much does the boat weigh?
A. 670 lb B. 2880 lb C. 2230 lb D. 654 lb
Mathematics
Express the solution set of the inequality in interval notation.x < 6
A. (-?, 6) B. (-?, 6] C. (6, ?) D. [6, ?)
Mathematics
Solve the problem.Two angles are complementary (meaning that the sum of their measures is 90°) and the sum of twice one angle plus the other is 120°. Find the measure of each angle.
A. 30°, 60° B. 41°, 38° C. 35°, 55° D. 30°, 150°
Mathematics