1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Verizon [17]
3 years ago
15

Evaluate A + 3B if possible. HELP ASAP!

Mathematics
1 answer:
madreJ [45]3 years ago
4 0

Answer:

Not possible.

Step-by-step explanation:

Addition of Matrix A and Matrix B is possible only if the order of matrix A is same as the order of matrix B.

Order of a matrix with m rows and n columns is m\times n.

Here, matrix A is \left[\begin{array}{ccc}2&-4\\-4&10\\0&-8\end{array}\right]

Matrix B is \left[\begin{array}{ccc}0&-4&6\\2&-10&4\end{array}\right].

Multiplying a matrix by a constant doesn't change its order.

So, order of matrix A is 3\times 2 as it has 3 rows and 2 columns.

The order of matrix 3B is 2\times 3 as it has 2 rows and 3 columns.

Therefore, addition is not possible as the order is different.

You might be interested in
Please help!
Marysya12 [62]
Thank you for posting your math question here at brainly. Among the choices provided the equation can used to find how many hours Melania worked in both jobs is letter B which is "13c + 9.25(38 – c) = 434" I hope it helps. 
7 0
3 years ago
Read 2 more answers
Find the difference.<br> (3ab+9a-2) - (-5ab+4)
JulsSmile [24]

Answer:

3ab+9a-2+5ab-4

8ab+9a-6

8 0
2 years ago
Lisa is sitting on the dock beside the lake she drops a rock from her hand into the lake after the rock hits the surface of the
soldi70 [24.7K]

Answer: 4.2495 feets

Step-by-step explanation:

Given the following :

Rate of change (speed) when rock hits the lake surface = - 3in/s

Distance or depth after 5 seconds :

Distance = rate of change * time

Distance = (- 3 in/s × 5) = - 15 inches

1 inch = 0.0833 feet

15 inches = (-15 * 0.0833) = - 1.2495 feets

Distance between Lisa's hand and lake surface = 3 feets :

Distance between Lisa's hand and rock after 5 seconds :

(3 feets + 1.2495 feets) = 4.2495 feets

5 0
2 years ago
Graph the line with 3/4 slope<br> passing through the point (2,-2).
S_A_V [24]

Answer:

Step-by-step explanation

x1 = 2, y1 = -2 and m = 3/4

y - y1 = m(x - x1)

y - (-2) = 3/4(x - 2)

y + 2 = 3/4(x - 2)

Multiply each term by 4

4y + 8 = 3(x - 2)

4y + 8 = 3x - 6

4y = 3x - 6 - 8

4y = 3x - 14

5 0
3 years ago
Are 4x and 15 + x equivalent expressions
I am Lyosha [343]
Yes if x=5 then 4(5)= 20 and 15+5=20
6 0
3 years ago
Other questions:
  • How to write 1,010,101.101 in expanded form
    10·1 answer
  • What is −412√+75√ in simplest radical form?
    6·2 answers
  • This problem is realy tricky. Ive tried numerous ways. Can I get help?
    13·1 answer
  • The quotient of a number x and the sum of 3 and 7. X is 20.
    13·1 answer
  • Here's another pls help​
    8·1 answer
  • Four runners are training for long races. Jay runs 5.832 miles, Andre runs 6.254 miles, Luke runs 6.9 miles, and Dawson runs 9 m
    10·1 answer
  • Https://brainly.com/question/23859122
    15·1 answer
  • ABCD shows the original location of a shape. FGHI shows the shape reflected across a
    14·1 answer
  • Geometry, Angles questions ​
    11·1 answer
  • The area of a triangle is 48cm^2. The height of the triangle is 6cm. Calculate the length of the base
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!