Solve the problem.How many ways can a committee of 3 be selected from a club with 12 members?
A. 110
B. 1320
C. 6
D. 220
Answer: D
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Solve.A storehouse stores 550 different inventory items. 
of these items are perishable. How many of the inventory items are perishable?
A. 440 items B. 444 items C. 436 items D. 110 items
Find the exact value of the expression.cos 
sin 
- cos 
sin 
A. 1
B. 
C. 
D. 
Find the uncoded 1 × 3 row matrices for the message "MERRY CHRISTMAS" by assigning a number to each letter in the alphabet such as 1 = A, 2 = B, 3 = C and so on (with 0 assigned to a blank space);
?
then encode the message using the encoding matrix 
.
?
A. Uncoded: 
Encoded: 
B. Uncoded:
Encoded: 
C. Uncoded:
Encoded: 
D. Uncoded:
Encoded: 
E. Uncoded:
Encoded: 
The radioactive substance neptunium -139 decays to 72.85% of its original amount after 28 hours. How long (to the nearest hour) would it take for 37% of the original neptunium to be present? ? __________ hours
Fill in the blank(s) with the appropriate word(s).