Find 
and 
.f(x, y) = 
A. 
= - 
; 
= - 
B. 
= - 
; 
= - 
C. 
= 
; 
= 
D. 
= - 
; 
= - 
Answer: A
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Refer to the figure and provide an appropriate name for the indicated angles. 
?4 and ?7
A. Complementary angles B. Alternate interior angles C. Corresponding angles D. Interior angles same side of the transversal
Provide an appropriate response.Solve for x: 8x + 2 = 
A. x = 1
B. x = -
C. x = 2
D. x = -
Suppose ? is an angle in standard position. Given either a point on the terminal side of ? or an equation of the terminal side of ?, give the exact value of the indicated trigonometric function(s). (-7, -5); find cos ?.
A. - 
B. 
C. - 
D. 
Solve the problem.Two tracking stations are on the equator 124 miles apart. A weather balloon is located on a bearing of 
from the western station and on a bearing of 
from the eastern station. How far is the balloon from the western station? Round to the nearest mile.
A. 293 mi B. 356 mi C. 347 mi D. 284 mi