For the pair of vectors, find 
.
?
?
A. 16
B. 20
C. 18
D. 17
E. 19
Answer: B
Mathematics
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Add or subtract as indicated. If terms are not like radicals and cannot be combined, so state. Assume all variables represent nonnegative real numbers.9
+ 2
A. 11
B. 13
C. -13
D. -5
Mathematics
Perform the operation.101two ? 111two
A. 10,001,100two B. 100,010two C. 1,000,110two D. 100,011two
Mathematics
List the improper fractions in the group.
, 
, 
, 
, 
A. 
, 
, 
, 
, 
B. 
, 
, 
C. 
, 
, 
, 
D. 
, 
Mathematics
Multiply.(2 + 2i)(4 - 5i)
A. -2 + 18i B. 18 + 2i C. -10i2 - 2i + 8 D. 18 - 2i
Mathematics