Provide an appropriate response.Is there an identity element for the operation of division over the set of integers? Support your claim with an example.
What will be an ideal response?
Yes; examples will vary. One example would be that 1 is the identity element since 
and 
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Perform the operation on the given vectors and find the magnitude and direction angle for the new vector.Given A = 
and B = 
-3A
A. 3
, 248.2°
B. 3
, 201.8°
C. -3
, 21.8°
D. 21, 111.8°
Provide an appropriate response.One pipe can fill a certain tank in 40 minutes. A second pipe can fill the same tank in 30 minutes. How long will it take to fill the tank if both pipes are used? Round to the nearest hundredth minute.
Fill in the blank(s) with the appropriate word(s).
Write the integer that corresponds to the situation.$232 profit
A. 232 B. -232
Find the product.(10a - 9)2
A. 100a2 + 81 B. 100a2 - 180a + 81 C. 10a2 + 81 D. 10a2 - 180a + 81