1. consider the cartesian equation of a circle, y=-2+-sqrt36-(x-1)^2, versus the parametric equations of the same circle: x=1+6cost y=-2+6sint. what are the advantages of the parametric euqations? select all that apply

2. Which set of parametric equations represents the function y=x^2+3x-4? select all that apply.

3. Identify the parametric equations that represent the same graph as the following parametric equations. Select all that apply. x=2t y=t^2+3

attached are the full questions + answer choices. thank you!

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

Someone answer asap for ! max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a. the median of max’s data is 250 b. more than half of the data points max recorded were 177 centimeters. c. a data point chosen at random is as likely to be above the mean as it is to be below the mean. d. every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.

If a + b = 28 and a - b = 10, then b =?