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
stiks02 [169]
2 years ago
15

Which polynomial is equivalent to (-2n+5)^2​

Mathematics
1 answer:
Naddika [18.5K]2 years ago
3 0

Answer:

4n^2-20n+25

Step-by-step explanation:

(-2n+5)^2

=4n^2-20n+25

You might be interested in
Can someone please help with this math question:)
Bingel [31]

<u>Solution</u><u>:</u>

The rationalisation factor for \frac{1}{ a -  \sqrt{b}  } is a + \sqrt{b}

So, let us apply it here.

\frac{1}{5 -  \sqrt{2} }

The rationalising factor for 5 - √2 is 5 + √2.

Therefore, multiplying and dividing by 5 + √2, we have

=  \frac{1}{5 -  \sqrt{2} }  \times  \frac{5 +  \sqrt{2} }{5 +  \sqrt{2} }  \\  =  \frac{5 +  \sqrt{2} }{(5 -  \sqrt{2})(5 +  \sqrt{2} ) }  \\  =  \frac{5 +  \sqrt{2} }{ {(5)}^{2} - ( \sqrt{2})^{2}   }  \\  =  \frac{5 +  \sqrt{2} }{25 -  2}  \\  =  \frac{5 +  \sqrt{2} }{23}

<u>Answer:</u>

<u>\frac{5 +  \sqrt{2} }{23}</u>

Hope you could understand.

If you have any query, feel free to ask.

5 0
2 years ago
Read 2 more answers
Which decimal is equivalent to 8/45?
Vilka [71]

Answer:

.1<u>777</u><u>.</u><u>.</u><u>.</u><u> </u><u>(</u><u>7</u><u> </u><u>is </u><u>repeating)</u>

6 0
2 years ago
20 POINTS PLZ HELP!!!!!!!!!!!!!!!!!!!!
mars1129 [50]

Answer:

a = 15

Step-by-step explanation:

First, you have to combine like terms: 5a and 3a, -5, -15, 6, and 4.

You can do it in any order and you will always get a = 15 for your answer.

Hope this helps!!!

3 0
3 years ago
Read 2 more answers
On a map, Luisa placed her school at (0,0) and her home at (–3,4). Which quadrant is the point representing her home located in?
Firlakuza [10]

Answer:

upper left

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Help please for homework
krek1111 [17]
4 + 3m and 2x + 3y. Sum means addition
5 0
3 years ago
Other questions:
  • PLEASE HELP I NEED HELP!! 25 POINTS
    6·1 answer
  • How can we best show or describe the change in a position of a figure?
    15·1 answer
  • HURRY
    10·1 answer
  • There is a stack of 8 cards, each given a different number from 1 to 8. Suppose we select a card randomly from the stack, replac
    11·1 answer
  • You deposit 5000 in an account that earns 5% simple interest.How long will it be befor the total amount is 6000
    13·1 answer
  • Pablo has a busy semester, and he does not want to give too much time to Statistics. So he puts off working through the course,
    8·1 answer
  • Let C ( t ) be the number of US cell phone subscribers in millions in t years since 1995. A linear model for the data is F ( t )
    9·1 answer
  • On Friday, March 16th, Bob Smith's beginning checking balance is $50 and his account is credited for a deposit of $100. That sam
    6·2 answers
  • 3x – 2y = 24<br> x + 2y = 48
    7·2 answers
  • The price of 2 dozen cobs of corn (which is 24 cobs) is $7.20. Joanna want to buy just 3 cobs of corn. How much will she pay?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!