A student overheard the principal saying that there would be a celebrity attending the Senior Prom this year. The following chart shows how quickly the rumor travelled. t t(minutes)

0

1

2

3

4

6

7

8

9

10

s(students who have heard the rumor)

1

8

32

86

156

217

223

224

225

225

1. This data can be modeled with a
regression equation

2. Choose the appropriate regression equation.

3. According to the regression equation about how long did it take for 165 students to hear about the rumor?

To find the extreme values of a function f(x.y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x,y)=xy

Factor the trinomial below. 12x^2 - 32x - 12 a. 4(3x+3)(x-1) b. 4(3x+1)(x-3) c. 4(3x+6)(x-2) d. 4(3x+2)(x-6)

Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle