D Question 29 1 pts Solve: 22-3-7 x2 X-5 None of these X=5 x=2 X-2 x...
help! Question 12 The function f(x)=x2-7 is one-to-one on the domain xs-7. Find $-+6). O None of the above 05-1(x) = VX2-7 of-'(x)= x2 +7 of-'(x)= - Vx2+7 of-'(x)=x2 +7 Of="«)= -VX2-7 Question 13 1 pts A diet requires at least 29 units of vitamin C and at least 30 units of vitamin B complex. Two food supplements are available that provide these nutrients, in the amounts and costs shown in the table below. How much of each should be...
1. Add, subtract, or multiply as indicated. Simplify completely. (4 pts) (x - 4) - (x2 – 3x + 4) a. b. (4 pts) (x + 5)(x2 + 2x) C. (4 pts) (x - 2)2 2. Solve each equation using any method. (4 pts) 2x2 + 4x - 30 = 0 a. b. (4 pts) (x - 3)2 = 16 C. (4 pts) x² - 4x = 6 d. (4 pts) x2 = 81 e. (4 pts) 72x = 8x2...
Solve the following equations: a) log2 (2) + log2 (3x - 5) = 3 b) 22+3 = 7° c) log(+4) + loge(x+3) = 1 d) 4e-2 = 31
Question 7 3 pts The solution of the Initial-Value Problem (IVP) x? yll – 2y = 4(x - 2) y(1) = 4 yl(1) = -1 is 1 y = + x3 - 2x + 4 22 None of them 4 y = + x2 23 + 1 2 1 O Y + x2 – 2x + 4 2 O y = *+2-- + x2 - x + 3 23
U Question 22 1 pts Find the absolute minimum of f(x, y) = x2 + 4y? - 2x²y + 4 on the square given by -1 << < 1 and -1<y<1. 11 4 8 None of the above or below O-2 07
Examp Solve: 5x – 5 = 2(x+ 1) + 3x – 7 Or - %3D Solve: 3x + 2(x +4) = 5(x +1) + 3 %3D
16. Divide: X-3 1 [A] x2 + 3x + 2 [B] x3 +3x2 + 3x – 1 X-3 3 5 [C] x2 + 3x + 14+ [D] x2 +3x+9+ 20 x-3 [E] None of these X-3 е е
Question 1 5 pts What is the order of the DE? Is the DE linear or nonlinear? 3 54' - (tan x)y= Vx+ +1 (7) 5.22 3rd order; nonlinear 2nd order; nonlinear 2nd order; linear 3rd order; linear LUCSLIUI 5 pts Is the function y=2e-32 - 4e5x a solution to the DE? Y' - 2y - 15y = 0 O No O Yes Question 3 5 pts Solve the separable DE. dy 3.cy + 2y - 15x - 10 dac...
Question 4 5 pts x2 (A) X Ev Evaluate S 0 - 23azdy + cos,+C X (B) -cos-x+C V1-x2 -cos-x+C -r? + cos2x+c (D) - OD B ОА Question 6 5 pts + Evaluate s da. 6V22 +6 A) 3/72 +6 - 3In XV6 (B) 31n x + 12 +6 + c TV +6 2 (C) 22 +6 - 31n|a + v82 +6|+0 (D) xV22 +6 -2.101x + 4x2 +6|+c 2. 12 ОА D B Oc Question 19 5 pts...
3. (i) Let f(x) = 2x4 –1 +5 and d(x) = 22 – 24 – 1. Use the long division to divide f(x) by d(x). Write out the long division diagram, and then write your final answer in the form f(x) = d(x)g(x) +r(x), where g() is the quotient, and r(x) is the remainder. (ii) Let f(x) = 3x - x2 + 2x + 30 and d(x) = x +2. Use the synthetic division to divide f(x) by d(x). Write...