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goldfiish [28.3K]
3 years ago
5

The factorization of (x+y)^2+2(x+y)+1 isplease answer​

Mathematics
2 answers:
Schach [20]3 years ago
8 0

Step-by-step explanation:

Using:(a+b) ² =a²+2ab+b²

Hope it is helpful to you

solong [7]3 years ago
3 0

Answer:

(x + y+ 1)^2

Step-by-step explanation:

Using : (a + b)^2 = a^2 + 2ab + b^2\\\\(x+ y)^2 + 2(x +y) + 1 , \ where \  a = (x+y) , \ b = 1 \\\\= (x +y)^2 + ( 2 \times 1 \times (x+y)) + 1^2\\\\= (x +y+ 1)^2

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Maria needs to make a total of 80 deliveries this week. So far she has completed 48 of them. What percentage of her total delive
Amiraneli [1.4K]

What I always do to solve this, is find a common factor for each number first.

Usually 4 or 5 works best. I'll use 4.

4 goes into 80 20 times, which means that 4 = 5%  of 80.

If 4 = 5%, and 48 = 12 x 4,    then 48 must equal 60% of 80.

(Another way to solve this problem is:  simplify 48 / 80.  This simplifies to 3/5.

3/5 = 60%)!

4 0
3 years ago
Please help will give branliest
NikAS [45]

-2x+8y-3

Hope this helps! :)

3 0
2 years ago
Read 2 more answers
Can I get a help please ​
iogann1982 [59]

Answer:

middle graph

Step-by-step explanation:

Soluton

The  second (middle ) graph is the only one that works.

  • First of all when you simplicity the right, you get y = x^2 - 1). That means that x does not go through 0,0. If you put x = 0 into x^ -  1 = 0, you get - 1. So on that basis alone both the first and third graphs are incorrect.
  • Second, both xs in the factors are plus, so x^2 is plus, which means the graph opens upward.

6 0
2 years ago
The number of bacteria in a culture doubles every 5 minutes. At first there are 10, after 5 minutes there are 20, after 10 minut
garik1379 [7]
The answer is 160 because as you stated in the question the number of bacteria doubles every five minutes, and after 10 minutes there are 40. Therefore, after 15 minutes there are 80 (40 doubled is 80), and after 20 (another 5 minutes), the number of bacteria is the double of 80, which is 160.
- Hope I helped :)
- PeaceLoveHappiness
6 0
3 years ago
Which set of equations is enough information to prove that lines a and b are parallel lines cut by transversal f? m∠4 = 110° and
atroni [7]

see the attached figure to better understand the problem

we know that

If a and b are parallel lines

then

m∠1=m∠4 --------> by alternate exterior angles

m∠3+m∠4=180\° --------> by supplementary angles

so

m∠3+m∠1=180\°

therefore

<u>the answer is the option</u>

m∠1 = 110° and m∠3 = 70°



4 0
3 years ago
Read 2 more answers
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