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
Zielflug [23.3K]
3 years ago
13

Which matrices can be added together?

Mathematics
1 answer:
MaRussiya [10]3 years ago
8 0
The ones that have the same number of rows and columns
You might be interested in
6) 6n+ 3 = 3(-7n + 1)<br> what did you guys get for the answer?
Allushta [10]

Answer:

n=0

Step-by-step explanation:

Clear parenthesis w/ distribution:

3(-7n+1)=-21n+3

Move everything over to one side:

6n+3=-21n+3

6n=21n                                                   Subtract the 3 on the right.

-15n=0                                                                      Subtract the 21.

n=0                                                                              Divide the -15.

5 0
3 years ago
Read 2 more answers
It took Trina 1 hour and 30 minutes to shovel the snow from her neighbor’s driveway. During that time she burned 630 calories. H
Kazeer [188]

Answer:

7

Step-by-step explanation:

The first step to solve this problem is to convert 1h 30min into just minutes. since there are 60 minutes in 1 hour you take 60 and add it ot the 30 extra minutes to get a total of 90.

Now, this question is asking you to find how many calories <u>per</u> minute she burns. When you are asked to find ___ per___ all you have to do is divide the first number by the second one. In this case you will divide calories by minutes.

630/90=<u>7</u>

6 0
3 years ago
Jessica had 140 to spend on 8 books. After buying them she had 12 dollars. How much did each book cost?
Rashid [163]

Answer:

each book was $16

Step-by-step explanation:

140-12=128 divided by 8 = 16

hope this helps!

8 0
2 years ago
PLZZ HELP ME I NEED ANSWERRS ASAP the number of words x that tina can type per minute is at least 50. write and graph an inequal
swat32
I think it is C hope that helped 
8 0
2 years ago
Read 2 more answers
A stock has produced returns of 14.5 percent, 4.8 percent, 10.2 percent, and 6.1 percent over the past four years respectively.
Anettt [7]
<span>The geometric average return is the the nth root of the product of the stock returns. So we have nâš r1 * r2 * r3. Where n is the number of returns. So we have 4âš(14.5 * 4.8 * 10.2 * 6 1) This gives us 4âš ( 4330.512) The fourth root of 4330.512 is 8.1121 percent.</span>
3 0
3 years ago
Other questions:
  • Joshua's math textbook Waze 4.21 ounces his social studies book weighs 3.99 ounces what is the difference in weight between the
    7·1 answer
  • 4. Which of the two figures below has the lesser volume?
    13·1 answer
  • What is equivalent to 7(x - 3)?
    5·2 answers
  • What is the standard form of the equation for this circle?
    6·1 answer
  • A number of robbers were discussing how best to share some stolen rolls of
    11·1 answer
  • The function f(x)=2x+1 is defined over the interval [2, 5]. If the interval is divided into n equal parts, what is the value of
    9·1 answer
  • What is the circumference of a child's swimming pool that has a radius of 3 feet
    7·1 answer
  • George has $3 in his saving account. He then adds $4 per day to the account. Let y represent the total amount in the account aft
    11·2 answers
  • (20 points and brainlest to whoever answers correctly!!!)
    7·1 answer
  • Hi! how do i find surface area of a cylinder? for some reason i can’t get the right answer
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!