Use the given information to find the exact value of the trigonometric function.sec ? = 4; The terminal side of ? lies in Quadrant I.
Find cos 
.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find the standard-form equation of the hyperbola centered at the origin which satisfies the given conditions.A hyperbola having a vertex at (0, -5) and eccentricity equal to 2
A. 
- 
= 1
B. 
- 
= 1
C. 
+ 
= 1
D. 
- 
= 1
Mathematics
Multiply. Simplify if possible.
? 
A. 
B. 
C. 16z
D. 
Mathematics
Add or subtract as indicated and write the result in standard form.7i - (-9 - i)
A. -9 + 6i B. 9 + 8i C. -9 - 8i D. 9 - 6i
Mathematics
Find the smaller number.0.00699 or 0.0239
A. 0.0239 B. 0.00699 C. They are equal.
Mathematics