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KiRa [710]
3 years ago
14

What is the perimeter of the triangle?

Mathematics
2 answers:
rosijanka [135]3 years ago
6 0
<h2>Given :- </h2>

<h3>3 sides of a triangle :-</h3>

4  {m}^{3 }  \:  + 2 {m }^{2}  \:  -  \: m \:

7 {m}^{3}  \:   - 3 {m}^{2}  +  \: 2m

4 {m}^{3}  \:  + 2 \:  {m}^{2}  \:  - 2m

<h2>Therefore ,</h2><h3>perimeter of triangle is sum of all sides :-</h3>

= (4 {m}^{3}  + 2 {m}^{2}  - m) + (7 {m}^{3}  - 3 {m}^{2} 2m) + (4 {m}^{3}  + 2 {m}^{2}  - 2m)

= 4 {m}^{3}  + 7 {m}^{3}  + 4 {m}^{3}  + 2 {m}^{2}  - 3 {m}^{2}  + 2 {m}^{2}  - m + 2m -2m

▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂

<h2> Hence , your answer is </h2>

\huge\green{15 {m}^{3}  +  {m}^{2}  - m}

mestny [16]3 years ago
3 0

Answer:

D

Step-by-step explanation:

When you add up

(4m^3+2m^2-m)+(4m^2+2m^2-2m)+(7m^3-3m^2+2m),

you have 15m^3+m^2-m,

which is what D is.

Side note:

You only add up the exponents when you multiply.

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Deffense [45]
The answer would be
D
7 0
3 years ago
Which of the following equations shows "twice a number is eighteen?"
S_A_V [24]

I don't see the answer choices, but 2 equations you could use to get eighteen would be:

9 × 2 = 18

     OR

9 + 9 = 18

See? Twice a number is eighteen. You can use any of my equations to get eighteen

↑   ↑   ↑ Hope this helps! :D

3 0
3 years ago
You are helping to plan an awards banquet for your school, and you need to rent tables to seat 180 people. Tables come in two si
pshichka [43]

Answer:

An equation modeling the situation  is : 4 m + 6 n  = 180

Step-by-step explanation:

Here,  the total number of guests in the banquet hall = 180

Let us assume number of tables ordered  with capacity of

4 people each  = m

And number of tables ordered  with capacity of 6 people each  = n

So, total number of people in m tables = m x ( Capacity of 1 table)

=  m x (4)  = 4 m

And, total number of people in n tables = n x ( Capacity of 1 table)

=  n x (6)  = 6 n

So, the total capacity of ( m + n) tables  = 4 m + 6 n

Also, the total required capacity  = 180

⇒  4 m + 6 n  = 180

Hence, an equation modeling the situation  is : 4 m + 6 n  = 180

3 0
3 years ago
Which two expressions are
Oxana [17]

Answer:

9(2p-18) and 2(9p-18)

Step-by-step explanation:

6 0
3 years ago
If no (A) = 40%, no (B) = 30%, n (A∩B) = 20% then find n (<br> (A B)<br> using formula.
Vesnalui [34]

Answer:

solution:-We know that for any two finite sets A and B, n(A∪B)=n(A)+n(B)−n(A∩B).

Here, it is given that n(A)=20,n(B)=30 and n(A∪B)=40, therefore,

n(A∪B)=n(A)+n(B)−n(A∩B)

⇒40=20+30−n(A∩B)

⇒40=50−n(A∩B)

⇒n(A∩B)=50−40

⇒n(A∩B)=10

Hence, n(A∩B)=10

Step-by-step explanation:

hope it helps you friend ☺️

8 0
2 years ago
Read 2 more answers
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