Use half-angle formulas to find the exact value for the following:
?

?
What will be an ideal response?
Mathematics
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Solve the problem.David's company has to ship 2200 boxes of sprinklers. If a truck can hold 550 boxes, how many truckloads does he need to ship all the boxes?
A. 2 truckloads B. 4 truckloads C. 5 truckloads D. 3 truckloads
Mathematics
Evaluate the integral.
A.
B. -
C. -
D. +
Mathematics
?A card is chosen at random from three 52-card decks of standard playing cards. What is the probability that the card will be black and a face card? A face card is a king, a queen, or a jack. ?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
In how many ways can a member of a hiring committee select 7 of 19 job applicants for further consideration?
__________ ways
Mathematics