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
lina2011 [118]
4 years ago
9

What is 2A? A= [4 9 13 5]

Mathematics
1 answer:
Ierofanga [76]4 years ago
4 0

Answer:

Multiply each entry by 2!

Step-by-step explanation:

Multiplying a matrix by a constant means to multiply each entry by that constant.

According to that, 2A would be the result of each entry being multiplied by 2.

That is equal to $ 2A = \begin{pmatrix}2(4) & 2(9) \\2(13) & 2(5) \\\end{pmatrix}

$ \implies 2A = \begin{pmatrix}8 & 18 \\26 & 10 \\\end{pmatrix}

Hence, the answer.

You might be interested in
Use the rule provided to generate the first five terms of the sequence. The rule<br> is 4n + 5.
lesya692 [45]

Answer:

9, 13, 17, 21,25

Step-by-step explanation:

n=1, 4×1+5=9

n=2, 4×2 +5=13

::

:

n=5, 4×5 + 5= 25

4 0
3 years ago
Need help asapdue today at 11 am
goblinko [34]

12 ×  8 = 96        3 × 3 = 9     96 - 9 = 87

(unlucky jasmine she does not have enough paint )

8 0
3 years ago
Mrs. Walters drove 360 miles on 25 gallons of gas. Mr. Walter drove 480 miles on 32 gallons of gas. SHOW YOUR WORK.
Dovator [93]
Mrs. Walters : 360/25 = 14.4 miles per gallon
Mr. Walter : 480/32 = 15 miles per gallon

Mr. Walter is getting better mileage per gallon


6 0
4 years ago
INCREDIBLY URGENT!
klemol [59]

Answer:

a) By graphing just one interval of length T. b) Infinite number of angles, c) Infinite times.

Step-by-step explanation:

Any function is periodical when:

f(t) = f(t+i\cdot T), \forall i \in \mathbb{N}_{O}

Where T is the period of the function. The periodicity of the function allows us to limit the graphing of the function to just an interval of one period and according to the definition, you can expect same output with n different angles (infinite number of angles and same output infinite times).

4 0
3 years ago
There is a total of 45 boys and girls in a choir.
rusak2 [61]

Answer:

16.5 year

Step-by-step explanation:

Using, mean = sum/no. *of observations

Here,

=> 16.2 = (sum of ages of boys)/18

=> 16.2 x 18 = sum of ages of boys

=> 291.6 = sum of ages of boys

Similarly, sum of ages of girls = 27 x 16.7 = 450.9

Mean(total) = (sumof agesof boys + girls)/45

Mean = (291.6 + 450.9)/45 = 16.5

3 0
4 years ago
Read 2 more answers
Other questions:
  • How do you solve this?
    7·1 answer
  • What is a common denominator for 2/8 and 3/4 in simplest form?
    7·2 answers
  • Mickey is solving a problem. What are some steps he might take after reaching his solution?
    15·1 answer
  • Can someone please answer. There is only one problem. There is a picture. Thank you!
    12·1 answer
  • Is 10.01 equal to 10.001
    14·1 answer
  • 2.25 x 10 to the 10 standard notation
    7·1 answer
  • sound travels 1,500 m/s through water at 25 degrees celciesunder these conditions how long would it take to travel 300m
    15·2 answers
  • What is the inverse of the function f(x) = x + 3​
    15·2 answers
  • Help ajajsjsnsnsjsjs ​
    7·1 answer
  • H ft<br> 5 ft<br> 30 ft<br> 6 ft<br><br> A. 20<br> B.25<br> C.23<br> D.30<br><br> Please help!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!