For the given graphical representation of vector v, estimate a1 and a2 so that 
and calculate 
.
A. a1 = 9, a2 = -9; 
= 162
B. a1 = 9, a2 = -9; 
= 12.7
C. a1 = 9, a2 = 9; 
= 12.7
D. a1 = 9, a2 = -9; 
= 4.2
Answer: B
Mathematics
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Evaluate or simplify the given expression.cos-1 
A. 
B. 
C. 
D. - 
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Find the sum.
+ 
A. 
B. 
C. 0
D. 
Mathematics
Simplify.
A. 
B. 49
C. 7
D. 21
Mathematics
For the statement below, identify which of the following properties is demonstrated: identity property of addition, identity property of multiplication, inverse property of addition, or inverse property of multiplication.4 ? 1 = 4
A. identity property of addition B. identity property of multiplication C. inverse property of multiplication D. inverse property of addition
Mathematics