28 is what percent of 80?

Please I need help I totally forgot how to do it

Hunter-Best [27]

5n2+10n+20 Final result : 5 • (n2 + 2n + 4)

Reformatting the input :

Changes made to your input should not affect the solution:

(1): "n2" was replaced by "n^2".

Step by step solution :Skip Ad
Step 1 :Equation at the end of step 1 : (5n2 + 10n) + 20 Step 2 :Step 3 :Pulling out like terms :

3.1 Pull out like factors :

 5n2 + 10n + 20 = 5 • (n2 + 2n + 4)

Trying to factor by splitting the middle term

3.2 Factoring n2 + 2n + 4

The first term is, n2 its coefficient is 1 .
The middle term is, +2n its coefficient is 2 .
The last term, "the constant", is +4 

Step-1 : Multiply the coefficient of the first term by the constant 1 • 4 = 4

Step-2 : Find two factors of 4 whose sum equals the coefficient of the middle term, which is 2 .

-4 + -1 = -5 -2 + -2 = -4 -1 + -4 = -5 1 + 4 = 5 2 + 2 = 4 4 + 1 = 5

5 0

3 years ago

What is 2+8? Get those points!

Hitman42 [59]

Answer:

10

thanks brainliest and ask if need more help

7 0

3 years ago

Read 2 more answers

A teacher is making a seating chart in order to group his class of 30 students. He puts 5 students in each group.

Natasha2012 [34]

Answer:

The teacher should divide the amount of students by 5, that way they'll find how many groups they'll have. And the amount of groups they'll have is 6 groups of 5 students, you didn't ask for this part but I decided it'd be best to add it. Hope this helps, have an amazing day you awesome human! ^w^

Step-by-step explanation:

8 0

3 years ago

The main purpose of the passage is to

Blababa [14]

The main purpose of the passage is to shift the focus of a debate.

What is meant by debate?

A debate is a procedure that entails formal dialogue about a certain issue, frequently with the participation of a moderator and an audience. Arguments are presented during a debate for frequently divergent points of view. In the past, debates have taken place in public gatherings, educational settings, debating rooms, coffee shops, competitions, and legislative assemblies. In addition to its traditional associations with academic institutions and debating groups, a debate has also been used for recreational and instructional purposes. These debates place a strong focus on logical coherence, factual precision, and audience appeal. Rules permitting participants to discuss and choose the debate's structure are also included in contemporary forms of competitive debate (how the debate will be judged).