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
Snowcat [4.5K]
3 years ago
13

Is it true that (x^2-3x+2)/(x-1) = x – 2, for all values of x? Justify your answer.

Mathematics
2 answers:
AysviL [449]3 years ago
6 0

Answer:

Yes, it is true for all values of x.

Step-by-step explanation:

We have given the equation:

(x²-3x+2)/(x-1) = x-2

First we solve the nominator L.H.S by factorization method.

x²-3x+2=0

x²-x-2x+2=0

x( x-1)-2( x-1)= 0

(x-1)(x-2)=0

Putting the value of nominator of L.H.S in the equation we get,

(x-1)(x-2)/(x-1)= (x-2)

Simplifying it we get,

(x-2) = (x-2)

Hence, L.H.S = R.H.S

So, it is true for all values of x.

lions [1.4K]3 years ago
3 0

Answer:

It is true for all values of x

Step-by-step explanation:

\frac{(x^2-3x + 2)}{x-1} = x - 2

\frac{(x^2-3x + 2)}{x-1} = x-2

First lets simplify Left hand side

LHS = \frac{(x^2-3x + 2)}{x-1}

Solving the numerator of LHS

x² - 2x - x +2

Using factorization to simplify

x(x-2) - 1(x-2)

(x-1)(x-2)

LHS becomes

\frac{(x-1)(x-2)}{x-1}

(x-1) will cancel out

LHS = (x-2)

LHS = RHS

x-2 = x-2

It is evident from the above expression that \frac{(x^2-3x + 2)}{x-1} = x - 2 is true for all values of x

You might be interested in
A class voted for either rollerblading, swimming, or biking as their favorite summer activity. If swimming got 42% percent of th
Nina [5.8K]
I dont know i wish i did
3 0
3 years ago
Write 3x-7+2(2x-7) as the product of 7 and another factor
tankabanditka [31]

Answer:

7x - 3)

Step-by-step explanation:

Given

3x - 7 + 2(2x - 7) ← distribute parenthesis

= 3x - 7 + 4x - 14 ← collect like terms

= 7x - 21 ← factor out 7 from each term

= 7(x - 3)

5 0
2 years ago
A quiz has thirty questions whose answers can only be correct or incorrect.
satela [25.4K]

Using a system of equations, it is found that Gina got 22 questions correct in the test.

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the variables are:

  • Variable x: Number of questions she got correct.
  • Variable y: Number of questions she got wrong.

The test has 30 questions, hence:

x + y = 30 -> y = 30 - x.

She scored 152 points, hence, considering the value of each question:

8x - 3y = 152.

Since y = 30 - x:

8x - 3(30 - x) = 152

11x = 242

x = 242/11

x = 22

Gina got 22 questions correct in the test.

More can be learned about a system of equations at brainly.com/question/24342899

#SPJ1

4 0
2 years ago
2x + 3 &gt; 13<br> x= 0<br> is this true?<br> O True<br> O False
omeli [17]

False.

Replace x with 0 and solve:

2(0) + 3 = 0+ 3 = 3

3 is not greater than 13 so the answer is false.

5 0
2 years ago
PLEASE!!!!!!!!!! HELP NEEDED QUICK
Triss [41]
We have to find the expected value for the PlayBall lottery. 
The price of the ticket = $1
Prize amount = $250
If a player wins, he will be winning $249 as the price is not paid back along with the prize amount. He is spending $1, getting back $250, so the net amount he is getting back is $249.

Now we have to find the probability of winning and losing.

Number of letters from A to T = 20
Number of digits from 0 to 9 = 10

Probability of picking up the same letter that was picked on that day = 1/20
Probability of picking up the same number that was picked on that day = 1/10

Thus, the Probability of picking up the same letter and same number that was picked on that day = \frac{1}{20}* \frac{1}{10}= \frac{1}{200}

Thus, the probability of winning = 1/200

The probability of losing = 1- \frac{1}{200}=\frac{199}{200}

The expected value E for the PlayBall lottery will be:

E= \frac{1}{200}(249)- \frac{199}{200}(1) \\  \\ &#10;E= \frac{1}{4}  \\  \\ &#10;E=0.25

Thus, the option C gives the correct answer
4 0
3 years ago
Other questions:
  • Use the interactive to find an expression equivalent to
    7·1 answer
  • Which expression is equivalent
    8·1 answer
  • Write the expression in the simplest terms (x^2-10)+(10^2+2)
    7·1 answer
  • I would appreciate the help!!
    12·1 answer
  • Joe practiced his trumpet 3/4 hour on Monday and 7/12 hour on Tuesday. How long did he practice altogether
    7·1 answer
  • What is the volume of a volleyball with a diameter of 8 inches
    9·1 answer
  • Joe likes to go fishing. He knows that stronger the fishing line is, the larger the fish that he can catch
    11·2 answers
  • The cylinder below has a diameter of 4.5 centimeters and a height of 7 centimeters. The shaded part represents the base of the c
    9·1 answer
  • Find the rate in miles per hour. 5 1/3 miles in 7 1/2 minutes
    6·1 answer
  • 30 POINTS
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!