Graph the pair of parametric equations with the aid of a graphing calculator.x = 5 tan t, y = 3 sec t; -?/2 ? t ? ?/2 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Simplify the expression using the power rule.
5
A. (-7)14 B. (-49)45 C. (-7)45 D. (-49)9
Mathematics
Perform the indicated operation.u = 6i + j, v = -8i - 7j, w = i - 4j; Find w + (u - v).
A. -13i - 4j B. 4i + 15j C. 14i - 2j D. 15i + 4j
Mathematics
Combine.(5x3 - 14x2 - 12) - (9x3 + 15x + 6)
A. -4x3 - 29x2 - 18 B. -4x3 - 14x2 - 15x - 18 C. -4x3 - 14x2 + 15x - 18 D. -4x3 - 14x2 - 15x - 6
Mathematics
Solve.A nuclear cooling tower cross section is a hyperbola having a diameter of 62 ft at the center. The distance between the two foci is 90 ft. What is the equation for the hyperbola?
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 5
D. 
- 
= 1
Mathematics