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 = -1 + 1.8 cos(0.5t),y1 = -1 - 2.25 sin(0.5t)x2 = 0.8,y2 = -1 + 
A. b
B. r
C. d
D. J
Answer: D
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Solve.Annica owes $734.48 on her charge card. She returns for credit items costing $23.44 and $36.43. She makes a purchase for $26.51 and additional purchases of $40.26, $197.02, and $127.82. She then makes a payment of $747.45. Find the amount she now owes.
A. $1030.45 B. $438.51 C. $318.77 D. $1150.19
Solve the number problem by finding the value of the unknown number.If the product of some number and 5 is increased by 5, the result is 40.
A. 13 B. 8 C. 7 D. 10
Provide an appropriate response.State whether the following situation represents direct variation, inverse variation, or neither, and explain why: A runner's speed in a race and the time that it takes to run the race.
What will be an ideal response?
Solve the problem.In 1985, in the town of Appleby, 22.8% of Hispanics were overweight, increasing by an average of 0.47% per year. In 1985, in the town of Appleby, 0.17% of whites were overweight, increasing by an average of 29.2% per year. Write a function that models the percentage, y, of Hispanics who are overweight x years after 1985. Write a function that models the percentage, y, of whites who are overweight x years after 1985.
A. Hispanics: y + 0.47x = 22.8 Whites: y + 29.2x = 0.17 B. Hispanics: y = 0.47x + 22.8 Whites: y = 29.2x + 0.17 C. Hispanics: y = 22.8x + 0.47 Whites: y = 0.17x + 29.2 D. Hispanics: y = 23.27x Whites: y = 29.37x