please solve
Calculate the IL dB level: 10-10watts/m2 20 dB 60 dB 50 dB 40 dB Question 9 Solve: [20Log(7/3]/3 2.45 3.69 3.62 2.32 < Previous use the best answer. You have 90 minutes. Please have ng math problems. Question 10 If you add a second sound of the same level, what 3 dB double the level 6 dB 1/2 the original level Previous Question 12 What is the dB SLP level for the following output level: 26 micropascals 2.28...
Solve the given initial-value problem. --- x xo) -(-) XO
solve 7th and 8th
Find a 3-vector xo for which Axo Xo and Xo has length 1. b. Compute A"xo for n= 1,2.. 7. A square matrix A is said to be idempotent if AA- A. an canc cellation The a. Show that the following matrix is idempotent: 2.40 2-2 -4 (G3 -1 241) b. Show that if AB= A and BA- B, then A and B are both idempotent. Show that if A is idempotent, then A" = A...
3. Solve the following equations. [2 pts each (a) Xn+1 2Xn- 1, Xo 5
Solve Xxw = AXx for k= 0, 1, 2, where Xo = [1, 17 and A= 4.4 4 -5 -4.6 1 * = (0,4)* [4] + 60c)*[] d X (691 []+(06) 78 X+(504[:]. (12[:)] 1. * = 9(0)*[]42.66% [3]
Solve for distance using 90 db = 85 db + 20 log (20 ft/ distance) 1.8 feet 8.9 feet 11.2 33.2
Solve using Matlab. Please no handwritten .
1. Suppose (xo. yo) is a critical point of the given function with continuous second deriva- tives, classify the critical point (a) frx(l, 1) 5, fry(1,1)1, fyy(1, 1)-2 (b) gx(0,2)1, y(0,2)-3, y(0,2)12 (c) hrx(0,2)4, hxy(0,2)-6, hyy(0,2) 9
What is the 3 dB bandwidth definition? And how can you use it to solve for bandwidth? Is there a formula or something?
Expectation
Confidence Internal Mylxo Yo-Xo B = xo b where to = (1, Xo, Xoz, ... Xok) prove Yo - Xo By is to distribution with df=n-kal Derive 100 (1-2)%. C. I. for Mylxo = x B. 3.8.1 C.I. FOR THE EXPECTATION OF A PREDICTED VALUE Let x'o = (200, 201, ..., Cox) represent a set of values of the independent variables, where too = 1 if an intercept is present. Then the predicted value of y at the point...
0 (0) Determine " (xo), '" (x0) and piv (xo) for the given point xo if y = P(x) is a solution of the given initial value problem. y" + xy' + y = 0, y(0) = 2, y' (0) = 1 "(