Find the value of the indicated trigonometric function of the angle ? in the figure. Rationalize the denominator where necessary.
Find cos ?.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the indicated vector.Let u = 
, v = 
. Find 
u - 
v.
A. 
B. 
C. 
D. 
Mathematics
Find the indicated trigonometric function, given that ? is an angle in standard position with the terminal side passing through the given point.(15, 20); Find cos ?.
A. 
B. 
C. 
D. 
Mathematics
Suppose you conducted a survey of your classmates to determine how much money (in U.S. dollars) they intended to spend on Halloween candy this year. Which of the following scales of measurement would your measure fall under?
A. ordinal B. interval C. Ratio
Mathematics
Provide an appropriate response.An obtuse angle is more than __________ degrees but less than __________ degrees.
Fill in the blank(s) with the appropriate word(s).
Mathematics