Set the viewing rectangle of your graphing calculator to 
by 
to solve the problem.Graph the following set of parametric equations for 0 ? t ? 2? and identify the letter of the alphabet that the graph resembles.x1 = 3 + 1.2 cos(0.5t),y1 = -2 - 1.5 sin(0.5t)x2 = 4.2,y2 = -2 + 1.5t/?
A. d
B. J
C. r
D. b
Answer: B
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Find the standard-form equation for an ellipse which satisfies the given conditions.An ellipse centered at the origin having vertex at (0, -9) and eccentricity equal to 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
- 
= 1
D. 
- 
= 1
Solve the problem.Two points A and B are on opposite sides of a building. A surveyor selects a third point C to place a transit. Point C is 49 feet from point A and 74 feet from point B. The angle ACB is 48°. How far apart are points A and B?
A. 112.8 ft B. 55 ft C. 73.8 ft D. 101.5 ft
Solve the problem.A college student earned $7100 during summer vacation working as a waiter in a popular restaurant. The student invested part of the money at 
and the rest at 
If the student received a total of $466 in interest at the end of the year, how much was invested at 
A. $3550 B. $1183 C. $3100 D. $4000
Express the sum using summation notation.62 + 123 + 184 + ... + 489
A. 
B. 
C. 
D. 