6) Consider the initial value problem y + cos πι + e²бty = 0, y(-1) = 0, y' (-1) = 0 Which of these statements are true? Select all that apply. A) There exists a nonzero real number r such that y(t) = ert is a solution of the initial value problem. B) The constant function y(t) = -1 is a solution of this initial value problem for all real numbers t. C) The constant function y(t) = 0 is the unique solution of this initial value problem on the interval (-∞, ∞). D) This initial value problem has only one solution on the interval (-7, 5). E) There must exist a function y = q(t) that satisfies this initial value problem on the interval (-7,∞).

5) Consider the initial value problem 9 (8² 9t+ 1)y' - 8ty = sin(2πt), ) = -4, y = -3.5 16 16 On which of these intervals is this initial value problem certain to have a unique twice differentiable solution? Select all that apply. A) (-∞, ∞) B) (0, 1) 25 C) (-4, -3.5) D) E) 32'32 明

1) Which of the following are solutions to the homogeneous second-order differential equation 4y 7y -2y=0? Select all that apply. A) YA = Ce2t, where C is any real constant B) y = 2e-21 6 2t C) y = C (e- 21 + e21), where C is any real constant D) 1/3 = 8 (221 + €21) E) y2 = Ce 2t, where C is any real constant 2t F) y₁ = 8e +2e2t G) y5 = (C₁ e²) · (C₂e-21), where C₁ and C₂ are any real constants 1

7) Compute the Wronskian of the pair of functions sin(5t) and cos(5t). A) -5 B) 4 C) 1 D) -4 E) 5

5) Consider the initial value problem 9 (8² 9t+ 1)y' - 8ty = sin(2πt), ) = -4, y = -3.5 16 16 On which of these intervals is this initial value problem certain to have a unique twice differentiable solution? Select all that apply. A) (-∞, ∞) B) (0, 1) 25 C) (-4, -3.5) D) E) 32'32 明

2) For which of these differential equations is the characteristic equation given by r(10r + 1) = 0? A) y (10y + 1) = 0 B) 10y'' + 1 = 0 C) 10y+1y=0 D) y (10y + 1y) = 0 E) 10y'' + 1y=0

LESSON 19 SESSION 3 3 Angel jumps rope. He does 38, 50, 22, and 29 jumps. How many jumps does Angel do in all? Do the on ⒶA 94 139 B 114 any two n make a te ℗ 179 Jess chose. How did Jess get her answer 4 Complete each equation using a number from the What a box at the right. and or numb a. 26 + 174 = 100 39 b. 39 +61= 100 48 74 c. 52+ 1481 = 100 5 Kelvin's garden has 31 daisies, 16 roses, 25 tulips, and 34 sunflowers. How many flowers are in Kelvin's garden? Show your work. 31 Ho all?

= Use Qin's method to solve the pure cubic equation x³: 12,812,904. Compare this method with the old cube root algorithm discussed in the text. In each case, show where

Collaborative Work (Ch4) MA244-02_Collaborative_Work_Chapter4.pdf uah.instructure.com zm Rich LTI b Answered: HW_#6 HW_06.pdf EE 213-01 Assignments zm Rich LTI uah.instruct... ✓ Download → Info × Close 0 - ZOOM + 1) a) Determine which functions are solutions of the following linear differential equation: y"- 6y' + 9y=0 i) e³x isė зх 23x ii) xe ³x iii) x² ³x iv) (x+3) e³x 3× хе b) Find the Wronskion хе the set of functions that you fand for as the solution of the differential equation above from a) c) What does the result that you found from b) imply? conici 2) Perform a rotation of axes to eliminate the xy-term, identify and sketch the graph of the following a 5x²-2xy + Sy²=24=0