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
Rainbow [258]
3 years ago
14

Does anyone mind helping me with this? It seems simple enough.

Mathematics
1 answer:
Yanka [14]3 years ago
3 0

Answer:

x = 4

Step-by-step explanation:

It is given that \sqrt{(x - 3)} = \sqrt{x} + 3, and we have to solve the given equation for x.

Now, we have \sqrt{(x - 3)} = \sqrt{x} + 3

Squaring both sides we get  

[\sqrt{(x - 3)}] ^{2} = [\sqrt{x} + 3]^{2}

⇒ x - 3 = x + 6√x + 9 {Since we know the formula of (a + b)² = a² + 2ab + b²}

⇒ 6√x = - 12

⇒ √x = -2

Again squaring both sides we get  

⇒x = 4 (Answer)

You might be interested in
Estimate using mental math: 903.6 ÷ 29.1. Show how you would estimate mentally, then show your estimated answer.
Strike441 [17]

Answer:31

Step-by-step explanation:I would use my fingers mostly.

But, I just do it normally. I pretend I'm using a sheet of paper then I write on it for the equation.

903.6 divided by 29.1

Then I estimate it because I know that 29.1 can go into 903.6 about 31 times. Then I multiply 31 and 29.1 and i get around 903.6.

I hope this helps. I'm sorry if you get this wrong.

5 0
3 years ago
Read 2 more answers
Can someone help me with these problems ???
pantera1 [17]
I recommend you use google because these are very easy
4 0
3 years ago
Choose all situations that correctly state the ratio. A neighborhood has 27 cats and 12 dogs. The ratio of cats to dogs in the n
Anastaziya [24]

Answer:  The answers are given below.


Step-by-step explanation: All the given situations are -

* * * A neighbourhood has 27 cats and 12 dogs. So, the ratio of cats to dogs is

= 27 : 12 = 9 : 4. That is, for every 9 cats, there are 4 dogs.

Thus, the situation correctly states the ratio.

* * *  In a class of 30 students, there are 16 boys and 14 girls. So, the ratio of girls to boys is = 14  : 16 = 7 : 8, because there are 7 girls for every 8 boys.

Thus, the situation does not state the ratio correctly.

* * * The won-lost ratio for a baseball team is 36 : 18 = 2 : 1. That is, the team won 2 games for each game lost.

Thus, the ratio does not state the situation correctly.

* * * The number of horses in a kingdom is 100, and the number of knights is 50. The ratio of knights to horses is = 50 : 100 = 1 :2. That is, There is one knight for every two horses.

Thus, the ratio states the situation correctly.

* * * Fifty-two out of the 88 keys on a piano are white, so ratio of white to black piano is = 52 : (88-52) = 52 : 36 = 13 : 9. That is, for every 13 white keys, there are 9 black keys.

Thus, the ratio does not state the situation correctly.

Hence, all are done.

3 0
4 years ago
If 27y is a multiple of 9 where y is a digit . What is the minimum value of Y.
stiv31 [10]
<h3>Answer:  0</h3>

Explanation:

The single digits are {0,1,2,3,4,5,6,7,8,9}

So naturally 0 is the first thing to test.

The number 270 is a multiple of 9 because 9*30 = 270. The digits of 270 add to 2+7+0 = 9 showing that it's a multiple of 9. Refer to the "divisibility by 9 rule".

The next possible value of y will be 9 units higher than y = 0, so we go for y = 9. Meaning that 279 is also a multiple of 9 (because 2+7+9 = 18 is a multiple of 9).

4 0
2 years ago
;~; someone help me fast! i needa
Sophie [7]

Answer:

1075 square feet.

Step-by-step explanation:

multiply 25 by 35 to get the big rectangle area, that's 875.

next the smaller rectangle area, 8 times 25. that's 200.

add em together and boom, 1075.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Steve opens a bank account with a simple annual interest rate of 5%. After four years, how much interest will Steve earn on an i
    13·2 answers
  • Kira and ahmad walk around a track. Kira walks each lap in 10 minutes.Ahmad walks each lap in 12 minutes. The two of them begin
    8·1 answer
  • Figures in square brackets are estimated standard errors of the coefficient estimates. What is the value of the test statistic f
    10·1 answer
  • al made a treehouse last summer. He started by making a model. the model included a window with height 1/3 inch. and width 1/6 i
    5·1 answer
  • Find the area of the region that lies inside the first curve and outside the second curve.
    10·1 answer
  • Solve the graphs? Show Your Work?
    11·1 answer
  • In a school of 1250 students, 250 are freshmen and 150 students take Spanish. The probability that a student takes Spanish given
    7·2 answers
  • 1. What is the distance between -12 and 6 on the number<br> line?
    10·2 answers
  • I need help ASAP, these questions have been stumping me
    13·2 answers
  • PLEASE HELP WILL GIVE BRAINLIEST What is 5(4x+y)?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!