Find the angle between the given vectors to the nearest tenth of a degree.u = 
, v = 
A. 2.2°
B. -7.8°
C. 4.4°
D. 14.4°
Answer: C
Mathematics
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Simplify the expression. Assume that all variables are positive when they appear.(
+ 
)(
- 
)
A. 11 - 2
B. 11z
C. 11 - z
D. 11 - 2
Mathematics
Graph the polar equation.r = 1 + sin ? 
A. 
B. 
C. 
D. 
Mathematics
Find the slope of the line.The x-axis
A. Not defined B. 0 C. -1 D. 1
Mathematics
Find the slope of the line. If the slope is undefined, state this.
A. 
B. 1
C. Undefined
D. 0
Mathematics