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
ryzh [129]
3 years ago
11

Add [ –6 –2 2] + [–3 2 1]. A. [–9 –3 –5] B. [–6 0 3] C. [–9 0 3] D. [–3 0 3]

Mathematics
2 answers:
Rus_ich [418]3 years ago
6 0
The answer should be C if you were to add each point.
Bumek [7]3 years ago
6 0

Answer:

The correct option is C.

Step-by-step explanation:

The given expression is the sum of two matrices.

[ –6   –2    2] + [–3   2   1]

Both are row matrices of order 1 × 3.

We can add two matrices if and only if order of both matrices is same.

In addition of two matrices, we need to add the corresponding elements of the matrices.

[ –6   –2    2] + [–3   2   1]  =  [ -6-3    -2+2   2+1 ]

[ –6   –2    2] + [–3   2   1]  =  [ -9    0   3 ]

The sum of given matrices is [ -9    0   3 ]. Therefore the correct option is C.

You might be interested in
How much is 6x7 7+6 please i need help
quester [9]
6x7 = 42

7+6 = 13

I hope this helps!
5 0
3 years ago
A certain forest covers an area of 2100 km^2. Suppose that each year this area decreases by 5.25%. What will the area be after 6
Neko [114]

Answer:

The area after 6 years is 1519.49km^2

<em></em>

Step-by-step explanation:

Given

a = 2100 --- Initial Value

r = 5.25\% --- Rate

Required

Determine the area after 6 years

Because the area reduces,, the following formula will be used to solve the question.

y = a*(1 - r)^t

Here

t = 6

So, we have:

y = 2100*(1 - 5.25\%)^6

Convert percentage to decimal

y = 2100*(1 - 0.0525)^6

y = 2100*(0.9475)^6

y = 1519.47866516

y = 1519.49 -- approximated

<em>The area after 6 years is </em>1519.49km^2<em></em>

4 0
2 years ago
Simplify : (√ + √ ) (√ − √) ( + )( 2 + 2 )
jek_recluse [69]

(\sqrt{x}+\sqrt{y})(\sqrt{x}-\sqrt{y})(x+y)(x^2+y^2)\\\\=[(\sqrt{x})^2-(\sqrt{y})^2](x+y)(x^2+y^2)\\\\=(x-y)(x+y)(x^2+y^2)\\\\=(x^2-y^2)(x^2+y^2)\\\\=(x^2)^2-(y^2)^2\\\\=x^4-y^4


Used:\\\\(\sqrt{a})^2=a\\\\(a-b)(a+b)=a^2-b^2\\\\(a^n)^m=a^{nm}

6 0
3 years ago
The dimensions of a figure are shown below.<br> Help please!!
alina1380 [7]

Answer:

60 feet^3

Step-by-step explanation:

like you draw, cut it to two part.

the small one:

1 x 3 x 4=12 feet^3

The big one:

2 x 6 x 4=48 feet^3

So the total is:

12+48=60 feet^3

Hope it helps.

8 0
3 years ago
List the rational number between -2 and 0
luda_lava [24]
The rational bumber between -2 and 0 is -1
8 0
3 years ago
Other questions:
  • Which statement is true about the function f(x)= √x?
    6·2 answers
  • Which formula can be used to find the nth term in a geometric sequence where a1=3 and r=2?
    13·2 answers
  • A solution is tested and found to have a pH of 1. The solution is A. strongly acidic. B. strongly basic. C. weakly basic. D. wea
    11·2 answers
  • -5/6x =-10/3 x=? answer faasttt please
    12·1 answer
  • Dichlorosilane is a compound that contains silicone, hydrogen, and chlorine atoms.it has the chemical formula SIH2CI2. Which sta
    5·1 answer
  • The library is 0.96 miles away   from  theo'"s home Write this distance as a fraction in simplest form.
    11·2 answers
  • The difference of 18 and m is equal to the product of m and 7
    10·1 answer
  • 2(3-q)+5=9 solve for q
    14·1 answer
  • Which is a true statement about missed payments on a credit report?
    7·1 answer
  • I need help with this math problem. ​.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!