Perform the indicated operations.-11 - 6 - 5
A. 0
B. -10
C. -12
D. -22
Answer: D
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Write the numbers in order of increasing size.0.2844, 0.28
, 0.28444, 0.284
A. 0.28
, 0.28444, 0.2844, 0.284
B. 0.284, 0.2844, 0.28444, 0.28
C. 0.284, 0.28
, 0.2844, 0.28444
D. 0.28
, 0.284, 0.2844, 0.28444
Solve the problem.How many different sequences of 4 digits are possible if the first digit must be 3, 4, or 5 and if the sequence may not end in 000? Repetition of digits is allowed.
A. 2,997 B. 2,000 C. 1,512 D. 2,999
Solve the problem.The floor of a rectangular room is to be tiled with 
foot square tiles along a 9
foot wall. How many tiles will be needed along the wall?
A. 3
tiles
B. 28
tiles
C. 30 tiles
D. 27
tiles
Express the sum or difference as a product.cos 
+ cos 
A. 2 cos 2x cos 
B. 2 sin 2x sin x
C. 2 cos 2x
D. 2 sin 2x sin 