UUMVIUUI U pilWise Tunction below. w -10.9 - -7 -6 -5 13 + 25 if –10...
Directions: In 25-27, let u = 15-6i .V=-5+ 4i, and w=-2-i. [25] Simplify u + 3v: A) -6i B) 6i C) 30-6i D) 30+6i E) none of these [26] Find the sum of the conjugate of v and the conjugate of w. A)-7-31 B) -7 +31 C) 7-3i D) 7+3i E) none of these [27] Subtract w from u. A) -17-71 B) -17+5i c) 13-5i D) 13-71 E) none of these
please need help with questions 25,27,29,31
VI 50. 22. 5(x - 2) > 15 and 23. X – 1 = 7x – 1 and 4x – 7 < 3 – x 24. 2x + 1 > 4x – 3 and x – 1 2 3x + 5 51. 52 In Exercises 25–32, solve each inequality and graph the solution set on a number line. Express the solution set in interval notation. 25. 6 < x + 3 < 8 26....
(3) Consider f: R3- R3 defined by (u,, w)-f(r, y, :) where u=x w = 3~. Let A = {1 < x < 2, 0 < xy < 2, 0 < z < 1). Write down (i) the derivative Df as a matrix (ii) the Jacobian determinant, (ii) sketch A in (x, y. :)-space, and iv) sketch f(A) in (u. v, w)-space.
5/9/2019 the closest point to y in the subspace W spanned by u, and u Let W be the subspace spanned by 11. and u2. Write y as the sum of a vector in W and a vector orthogonal to w u, 12 13)- 12 25 3 5 6-5 | and b = | 4 l. Describe the general solution in parametric Describe all solutions of Ax = b, where A-1-2 -4 7 0 vector form
Evaluate the function for the given value of x. 1-2x-5, {/x-7). for x<-1 for -1 <x<1 for x21 19, Find f(-1) undefined -8. -3 8.
For the given graph of f(x) below, use interval notation to express the solution to f(x) > 0. -7-675-- -2 -1 A) (0,0) B) (-5,2) u (5, 9) c) (0,3) D) (-00,-5) u (2,5)
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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
Question 5 (5 points) Determine a formula for the piecewise defined function graphed below. 4. - A 2 ܘ ܐ ܚ ܪ ܇ ܀ ( 2x + 2 x + 1 if x < -2 if x = -2 if i < -2 f(x) = 2x + 2 15x + 2 if x 2-2 ΔΙΥ ( 2x + 6 11x+2 ifr< -2 if r>-2 V f(x) = 2 + 2 if x < -2 if x 2-2 โ5x + 1...
Problem 6: 10 points Assume that observable is a random variable W = min X, <i<5 where {X; : 1<i<5} are independent and uniformly distributed on the unit interval (0 < x < 1). 1. Derive CDF for W, that is F(w) = PW <w]. 2. Evaluate density function, f(w) and identify it. 3. Find expected value of W. 4. Determine variance of W.