Question 13 - of 22 Step 1 of 1 01:41:24 0 Evaluate the determinant of the...
01:56:37 Question 3 - of 22 Step 1 of 1 Use the properties of logarithms to expand the following expression as much as possible. Simplify any numerical expressions that can be evaluated without a calculator In (* Vita) HU Answer 3 Points Keypad If you wish to enter log or in, you must use the keypad.
Question 4 of 22 Step 1 of 1 01:55:12 Use the properties of logarithms to expand the following expression as much as possible. Simplify any numerical expressions that can be evaluated without a calculator logs (50x + 125y) Keypad Answer 2 Points + log < N Prev
circle answer Question 15 - of 22 Step 1 of 1 Evaluate the determinant of the matrix. Sac Sad A= 8bc8bd Answer/How to Enter) 5 Points Prev
Determinants and linear transformations 4. (a) Let A be the matrix 1 -2 4 1 3 2 11 i) Calculate the determinant of A using cofactor expansion of row 3. (ii) Is A invertible? If so, give the third column of A1 (you do not have to simplify any fractions) (b) Let B be the matrix 0 0 4 0 2 8 0 4 2 1 0 0 0 7 Use row operations to find the determinant of B. Make...
01:51:41 Question 6 - of 22 Step 1 of 1 How many liters each of a 20 % acid solution and a 60 % acid solution must be used to produce 80 liters of a 40 % acid solution? (Round to two decimal places if necessary.) Keypad Answer How to Enter) 5 Points liters of 20% acid solution liters of 60 % acid solution
3. Let A 2 -30 1 0 -2 2 0 (i) Compute the determinant of A using the cofactor expansion technique along (a) row 1 and (b) column 3. (ii) In trying to find the inverse of A, applying four elementary row operations reduces the aug- mented matrix [A1] to -2 0 0 0 0 -2 2 1 3 0 1 0 1 0 -2 Continue with row reductions to obtain the augmented matrix [1|A-') and thus give the in-...
3 seperate questions multiple choice Evaluate the determinant by using a cofactor expansion along any row or column. -5 5 -5 3 0-1 2-2 0 3 0 0 0 -3 4 1 0 150 0-150 0-30 Find the eigenvalues of the given matrix. 2 3 O 1, 2 O 1, -2 -2 1 1 Row reduce the matrix to obtain a row equivalent matrix. 4 -2 31 -3 -11 9-5 1-2 3 4 3 [1 4 -2 3 0 1...
Compute the determinant by cofactor expansion. At each step, choose a row or column that involves the least amount of computation. 5 2 2 40 3 0-4 1 0 4 - 8 34 1 3 0 0 0 0 9 3 4 30 5 2 24 0 3 0-4 1 0 4 - 8 3 4 1 = 3 0 000 9 3 4 30 (Simplify your answer.)
Question 24 of 41 Step 1 of 1 01:21:46 A publisher reports that 53% of their readers own a particular make of car. A marketing executive wants to test the claim that the percentage is actually different from the reported percentage. A random sample of 140 found that 50% of the readers owned a particular make of car. Is there sufficient evidence at the 0.10 level to support the executive's claim? Answer 2 Points Tables Keypad There is sufficient evidence...
need help with e f and g please 2x2 + x3 0 (1 pts) write the linear system in the format, A x = b (2 pts) Find the determinant of the matrix A by using an expansion along row 1 (2 pts) Find the determinant of the matrix A by using an expansion along column 2 Compare the result with that of (b). Based on your result of b and/or c is matrix A singular or invertible (2 pts)...