Use the given information to find the exact value of the trigonometric function.cos ? = - 
, sin ? > 0
Find cos 
.
A. - 
B. 
C. 
D. - 
Answer: B
Mathematics
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Solve.How many 6-letter codes can be formed with the letters 
with repetition?
A. 336 B. 56 C. 240 D. 262,144
Mathematics
Add or subtract, as indicated.
+ 1
+ 2
A. 6
B. 6
C. 7
D. 6
Mathematics
Find the vertices and foci of the given ellipse.4x2 + y2 = 4
A. Vertices: (0, 2) and (0, -2);
Foci: (0, 
) and (0, -
)
B. Vertices: (2, 0) and (-2, 0);
Foci: (
, 0) and (-
, 0)
C. Vertices: (0, 
) and (0, -
);
Foci: (0, 2) and (0, -2)
D. Vertices: (0, 2) and (0, -2);
Foci: (0, 
) and (0, -
)
Mathematics
Find the quotient and the remainder.21x6 - 35x3 divided by 7x
A. 3x6 - 5x3; remainder 0 B. 3x7 - 5x4; remainder 0 C. 21x5 - 35x2; remainder 0 D. 3x5 - 5x2; remainder 0
Mathematics