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
Hitman42 [59]
4 years ago
14

What is the solution of the equation? (√2x-1) + 2=x

Mathematics
1 answer:
Gwar [14]4 years ago
7 0

Answer:

x = 5

Step-by-step explanation:

√(2x − 1) + 2 = x

√(2x − 1) = x − 2

2x − 1 = (x − 2)²

2x − 1 = x² − 4x + 4

0 = x² − 6x + 5

0 = (x − 1) (x − 5)

x = 1 or 5

Check for extraneous solutions.

√(2(1) − 1) + 2 = 1

√(1) + 2 = 1

3 = 1

No solution

√(2(5) − 1) + 2 = 5

√(9) + 2 = 5

5 = 5

x = 5

You might be interested in
Is 8 yards greater than less than or equal to 288 inches
Scrat [10]

1 yard = 36 inches.

8 yards = (8 x 36) = 288 inches.

Therefore, the answer to the question is "Yes.", since the quantities are equal.


5 0
3 years ago
Standerd form for 4,000 300 20 9
allochka39001 [22]
The number is 4329 your welcome
7 0
4 years ago
Read 2 more answers
Nidhi is thinking of a number n, and she wants her sister to guess the number. Her first clue is that eight less than three time
Dmitriy789 [7]

Answer:

The range of numbers that Nidhi might be thinking of is between 3 and 9.

Step-by-step explanation:

We are given that Nidhi is thinking of a number n, and she wants her sister to guess the number.

Her first clue is that eight less than three times her number is between one and nineteen.

Let the number Nidhi is thinking be 'n'.

So, eight less than three times her number means that;

(3\times \text{n}) - 8 = 3\text{n}-8

Now, according to the question; the above equation is between one and nineteen, so;

1<  3\text{n}-8 < 19

Adding 8 to the whole expression;

1+8<  3\text{n}-8 +8< 19+8

9<  3\text{n}< 27

Dividing the whole expression by 3;

\frac{9}{3} <  \frac{3\text{n}}{3} < \frac{27}{3}

3<  \text{n}< 9

Hence, the range of numbers that Nidhi might be thinking of is between 3 and 9.

3 0
3 years ago
Alicia, Malik, Joey, and Hailey had some pencils. Alicia gave 18 pencils to Malik. She received 10 pencils from Joey and 23 penc
strojnjashka [21]

Answer:

61

Step-by-step explanation:

subtract the ones she got add the ones she gave away

6 0
3 years ago
Read 2 more answers
What math problem equals 18
Alja [10]

Answer:

9-0+1-1×2

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • What does this equal to -31 + 4x = -2x + 35
    6·1 answer
  • What are the coordinates of the vertex of the parabola y=x^2+2x-1
    14·1 answer
  • One number is 3 more than another. Their sum is -13. Find the numbers
    11·1 answer
  • A new freezer costs $500 plus $0.20 a day to operate. An old freezer costs $20 plus $0.50 a day to operate. After how many days
    7·1 answer
  • Help ASAP please
    8·1 answer
  • Don’t understand this one, hoping for help
    7·1 answer
  • Which lines are parallel? how do you know?
    8·1 answer
  • From the observation deck of a skyscraper, Jamal measures a 51° angle of depression
    8·2 answers
  • Write the number 66,190,000 using the number word "million" and then round to one decimal place
    10·1 answer
  • Translate and solve: 220% of what number is 3300?<br><br> Note: Enter your answer as a whole number.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!