Algebra(check pt 2)

1)The first row of -3T.
T[4 -5 2]
[8 -1 3]
answer=[-12 15 -6]

2)The first row of 5P-Q.
P[3 1] Q[4 4]
[-4 0] [12 21]
answer=[11 1]

3)The first row of TV.
T[4 -5 2] V[3 1]
[8 -1 3] [0 2]
[-4 5]
answer=not possible

4)The inverse of matrix R.
R[0 -1/4]
[1 3/4]
answer=not possible

  1. 👍 0
  2. 👎 0
  3. 👁 91
asked by erin
  1. Questions 1 and 2 are correct. I'm not sure about 3 and 4.

    1. 👍 0
    2. 👎 0
    posted by Noelle

Respond to this Question

First Name

Your Response

Similar Questions

  1. Advanced Math

    Find DE if matrix D= Row 1= -2,4,6 and ROW 2= 5,-7,1 and matrix E= Row 1= 1,-2 Row 2= 0,-4, and Row 3= -3,4 WORK: [(-2)(1)+(4)(0)+(6)(-3)]=-20 [(-2)(-2)+(4)(4)+(6)(4)]=44 [(5)(1)+(-7)(0)+(1)(-3)]=2 [(5)(-2)+(-7)(4)+(1)(4)]=-34 The

    asked by Lucy on June 22, 2008
  2. Math

    An auditorium has 30 rows with 10 seats in the first row, 12 in the second row, 14 in the third row, and so forth. How many seats are in the auditorium My answer is 1170 but the way I figured out the problem was by listing numbers

    asked by Nikki on March 21, 2010
  3. Algebra II-Please check calcs

    Could someone check this matrix calculation The first matrix dimension is 1 by 3 row 1 = 1 row 2 = 7 row 3 =3 Second matrix is 1 by 3 Row 1 column one =2 row 1 column two = -5 row one column three = 5 my calculation is that it

    asked by Ray Scholz on January 26, 2011
  4. Algebra

    The chart below shows the average number of movies seen per person in selected countries. A chart is shown with 2 columns.The first column is titled Country. The second column is titled Average number of movies a person sees in a

    asked by lyssa on April 18, 2017
  5. math

    A gardener is making a triangular planting, with 35 plants in the front row, 31 in the second row, 27 in the third row and so on. If the pattern is consistent how many plant are there be in the last row?

    asked by chevlios on February 13, 2015
  6. Algebra/Math

    Can you check these for me. Directions: Find the slope of the line that passes through each pair of points. 1. (3,-8) and (-5,2) Answer: -10/8 2. (-10,-3) and (7,2) Answer: -5,-17 3. (-7,-6) and (3,-6) Answer: 9 4. (8,2) and

    asked by Karen on October 17, 2010
  7. math (plz help)

    Ms. Sue has not answered this question where all work must be shown. Plz, Ms. Sue do not answer this one again. Let someone else help me...plz. In a movie theater, Theater A has 30 seats in the first row. Each row has 4 more seats

    asked by Stacy on March 14, 2011
  8. math help

    Can someone explain to me the following step by step , i 've looked in websites , plus the book and i want to understand how this problem has this answer. Problem #1 Find the inverse if it exists, for the matrix. -2_1_3 3_-1_0

    asked by student on July 22, 2007
  9. Algebra 2

    The first row of a concert hall has 20 seats, and each row after the first has one more seat than the row before it. There are 30 seats. a)write a rule for the number of seats in the nth row b) 40 students from a class want to sit

    asked by Please check my answer (: on March 15, 2012
  10. math

    I AM VERY BAD AT MATH , CAN SOMEONE PLEASE HELP ME !? PLEASE PLEASE The chart below shows the average number of movies seen per person in selected countries. A chart is shown with 2 columns.The first column is titled Country. The

    asked by sister snapped on April 1, 2019
  11. Math

    The first row of a concert hall has 25 seats and each row after the first has one more seat than the row before it. There are 2 rows of seat. 1)Write a rule for the number of seats in the nth row. 2)35 students from a class want

    asked by Lindsay on March 2, 2010

More Similar Questions