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
Gnom [1K]
3 years ago
10

What number should be added to both sides of the equation to complete the square? x^2-40x=0

Mathematics
2 answers:
mylen [45]3 years ago
8 0

Answer:

+40

Step-by-step explanation:

leva [86]3 years ago
5 0

Answer:

400

Step-by-step explanation:

When completing the square, all you need to do is take half the coefficient of x, and square it.

In this case the coefficient of x is -40, and half of that is -20.  -20 squared is 400, and that is what you need to add to both sides.

Note that when completing the square, you'll always be adding a positive number unless coefficient you're working with is an imaginary or complex number.

You might be interested in
Help please thank you
Sergeeva-Olga [200]

Answer:

0.25

Step-by-step explanation:

4 0
3 years ago
Determine what type of statistical test should be used to answer each of the questions below. (You will only use each response o
Svet_ta [14]

Answer:

1.One proportion

2. Proportions from Dependent Samples

3. Two Independent Proportions

4. One Mean

5. Means from Dependent Samples

6. Two Independent Means

Step-by-step explanation:

What proportion of Americans believe in climate change? - One proportion

From the above information, there is only one sample and the question is about proportion. So, we must use "One proportion".

Do college students change their view on climate change as they go through college? One hundred freshman are asked if they believe in climate change. The same students are asked four years later if they also believe in climate change. - Proportions from Dependent Samples

From the information given, there are two samples and samples are dependent ( that is same students are asked four years later). Furthermore, the question is about proportion, we must use " Proportions from dependent samples ".



Is there a difference in the proportion of men and women who believe in climate change? - Two Independent Proportions

From the information given, there are two independent samples and they are asking about proportion, we must use "Two independent proportions".

What is the average amount of time that Americans spend watching or reading the news a day? - One Mean

From the information, there is only one sample and they are asking about mean. Therefore, we must use ". One mean".

Is there a difference in the amount of time that college students spend reading or watching the news as they go through college? One hundred students were asked as freshmen and as senior how many minutes a day they spent reading or watching the news? - Means from Dependent Samples

There are two samples and samples are dependent ( the same students are asked four years later). Also, they are asking about mean, we must use "Means from dependent samples ".

Is there is a difference in the amount of time that Republicans and Democrats spend watching or reading the news? - Two Independent Means

From the information given, there are two independent samples and they are asking about mean, we must use "Two independent means".

8 0
3 years ago
Please help!! 30 pts! thanks!
mel-nik [20]

Answer:

Eu não sei cara, sinto muito, cara, não me denuncie ou você é apenas um idiota metido

Step-by-step explanation:

Eu não sei cara, sinto muito, cara, não me denuncie ou você é apenas um idiota metido

5 0
3 years ago
Read 2 more answers
Helpp i’m confused !!!!
pshichka [43]

Answer:

2

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
jenny`s mom says she has an hour before it's bedtime. Jenny's spends 3\5 of hour texting a friend and 3\8 of the remaining time
laiz [17]
First you'll need to get the same denominator. So instead of 3/5 and 3/8 you'll have 24/40 and 15/40. Now that we've changed the value of the denominator, the 40/40 will now represents the 1 hour that Jenny has before bedtime. So you add 24/40 and 15/40 and get 39/40. 39/40 stands for the time that Jenny has already spent brushing her teeth and texting her friend all together. Since the 1 hour is 40/40 subtract 39/40 from it to get 1/40. 1/40 is equal to the rest of the time Jenny spends reading or 1.5 minutes.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Determine the percent of all voters that did not vote Republican or Democrat but voted "other" instead. Round your answer to the
    6·1 answer
  • Convert 26°C to degrees Fahrenheit.
    14·2 answers
  • In this synthetic division problem shown below what number belongs in the place of the question mark
    13·1 answer
  • Susan is buying three different colors of tiles for her kitchen floor. She is buying 25 more red tiles than beige tiles, and thr
    6·1 answer
  • If there are 32 boys and 56 girls in a room, fill out all of the possible ratios of boys to girls that could be made.
    15·2 answers
  • — 3 (— 5х + 2) - x - 3 = 39
    14·1 answer
  • A 7 inch candle burns at a rate of 2 inches per hour. Which equation represents the
    5·1 answer
  • Una sustancia se encuentra en 15°c pero a partir de comienzo de un experimento su temperatura disminuye de manera uniforme a raz
    7·1 answer
  • Please only answer if you have an actual answer. Worth 20 points
    13·1 answer
  • Evaluate the expression using the values given.<br><br> 4y(y + x); use x= 3/2, and y = -5/4
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!