Simplify 2x^2-7x-4/x^2-5x+4 What are the excluded values

Answers

Answer 1

Answer:

x = 1

Step-by-step explanation:

Given

[tex]\frac{2x^2-7x-4}{x^2-5x+4}[/tex] ← factor numerator and denominator

= [tex]\frac{(x-4)(2x+1)}{(x-4)(x-1)}[/tex] ← cancel (x - 4) on numerator/ denominator

= [tex]\frac{2x+1}{x-1}[/tex]

The denominator of the rational expression cannot be zero as this would make it undefined. Equating the denominator to zero and solving gives the value that x cannot be.

x - 1 = 0 ⇒ x = 1 ← excluded value

Answer 2

Answer:

On edge it is D, 1 and 4

Step-by-step explanation:

Why was it impossible to find this answer


Related Questions

19mn + 14t + 8t(2) - 3mn +(-2t) + 5t(2) =

Answers

i think the answer ur lookin for is " 16mn+36t  "

hopefully this helps =3

need help to find x. rounded to the nearest tenth or as a fraction/whole number?

Answers

Answer:

3.5

Step-by-step explanation:

This is a 30-60-90 triangle so the hypotenuse is equal to 2 times [tex]\sqrt{3}[/tex].

[tex]x = 2\sqrt{3}[/tex] ≈ 3.5

What is the value of the expression (-2t^2)^3' when 't = -3'?

Answers

Answer:

I believe it is 46656

Step-by-step explanation:

(-2*-3) = 6 ^2 = 36^3 = 46656

Hope this helps you!

Carol is comparing two rectangular tiles for a flooring project. The blue tile is 8 centimeters long and 6 centimeters wide. The yellow tile is is 70 milimeters long and 68 milimeters wide. Which tile covers the greater area? How much greater is the area. Use the sentence frame to answer.=: The_____ Tile covers more area by ________.

Answers

Answer:

The Blue Tile covers more area by 40 mm^2

Step-by-step explanation:

convert centimeter  to  millimeters

1cm = 10 mm

(6 x 10) by (8 x 10)

Area of a rectangle = length x breadth

60 x 80 = 4800

70 x 68 = 4760

difference = 4800 - 4760 = 40

Calcula el RIQ de las temperaturas en las Ciudades de Kansas, Misouri las temperaturas: 23,25,28,28,32,33,35 y en Paradise, Michigan. Las temperaturas: 16,24,26,26,26,27,28 *

Answers

Respuesta:

Kansas, Misuri = 8

Paradise, Michigan = 3

Explicación paso a paso:

El rango intercuartílico (IQR) = Q3 - Q1

Q3 = 3/4 (n + 1) th término

n = número de muestras

Q1 = 1/4 (n + 1) th término

Kansas Misuri:

23,25,28,28,32,33,35

Datos pedidos: 23, 25, 28, 28, 32, 33, 35

n = 7

Q1 = 1/4 * 8 = 2do trimestre = 25

Q3 = 3/4 * 8 = 6. ° tem = 33

Q1 = 33 - 25 = 8

Paradise, Michigan:

16,24,26,26,26,27,28

Datos pedidos: 16,24,26,26,26,27,28

Q1 = 1/4 * 8 = 2do = 24

Q3 =. 3/4 * 8 = 6to = 27

Q3 - Q1 = 27 - 24 = 3

In the figure to the right, if AC = 20 and BC = 17, what is the
radius?
А
8
The radius is approximately (Round to the nearest tenth as needed)

Answers

Answer:

Step-by-step explanation:

Find the length of the missing side

Answers

Answer:

43.7378554573

Step-by-step explanation:

use pythagoream thereom :D

I need help ASAP!!!!!!!

Answers

Answer:

2 4/8 or 2 1/2

Step-by-step explanation:

Hope its helpful!

The perimeter of square is 96cm .Find the area and the length of the diagonal​

Answers

Answer:

length is 32

formula of finding the length of square is 92 divided by 3

32

area is 1024

the formula of finding area is Lenght multiply by length

so 32 multiply by 32

1024

mark my answer brainliest

Find m a. 26
b. 36
c. 56
d. 34

Answers

The answer is c or b

No clue how to do this.

Answers

Answer:

Look at the graph, on the left side it says snow on the ground, and it starts on 5, as the storm continued more fell. nvm.

Step-by-step explanation: The answer to your question is 5, because that is how much is on the ground at the beggining.

Answer

5 Inches of snow was on the ground when the storm started.

Step-by-step explanation:

if i buy 25 top loaders for 25¢ each how much money would it be in total?

Answers

25x.25=6.25 so the answer is $6.25

Help Please ASAP!!!!!!!!!!

Answers

Answer:8(B)

Step-by-step explanation:

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HELP I NEED HELP ASAP

Answers

Given:

Grocery store located at point (5,-4).

Park is located at point (-5,4).

Paula's house is halfway between the Grocery store and park.

School is halfway between the Paula's house and park.

To find:

Ordered pair for the school.

Solution:

Formula used:

[tex]\text{Midpoint}=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)[/tex]

Paula's house is halfway between the Grocery store and park. It means the location of Paula's house is the midpoint of (5,-4) and (-5,4).

[tex]\text{Paula's house}=\left(\dfrac{5+(-5)}{2},\dfrac{(-4)+4}{2}\right)[/tex]

[tex]\text{Paula's house}=\left(\dfrac{0}{2},\dfrac{0}{2}\right)[/tex]

[tex]\text{Paula's house}=\left(0,0\right)[/tex]

So, the Paula's house is located at (0,0).

School is halfway between the Paula's house and park. It means the location of the school is the midpoint of (0,0) and (-5,4).

[tex]\text{School}=\left(\dfrac{0+(-5)}{2},\dfrac{0+4}{2}\right)[/tex]

[tex]\text{School}=\left(\dfrac{-5}{2},\dfrac{4}{2}\right)[/tex]

[tex]\text{School}=\left(-2.5,2\right)[/tex]

Therefore, the correct option is B.

Select all expressions that are equivalent to 4(y + 2).
A 4y + 2
B4y + 8
Cy+y + y + y +2
D 5(y +2) – (y + 2)
Ey + y + y + y + 2+2+2+2
F.5(y + 2) - (y – 2)

Answers

Answer:

BDE

Step-by-step explanation:

× A = 4y + 2 = 2(4y/2 + 2/2) = 2(2y + 1) ≠ 4(y + 2)

✓ B = 4y + 8 = 4(4y/4 + 8/4) = 4(y + 2) = 4(y + 2)

× C = y + y + y + y + 2 =

y (1 + 1 + 1 + 1) + 2 = 4y + 2 = A ≠ 4(y + 2)

✓ D = 5(y + 2) – (y + 2) = 5(y + 2) – 1(y + 2) =

(5 – 1)(y + 2) = 4(y + 2)

✓ E = y + y + y + y + 2 + 2 + 2 + 2 =

y (1 + 1 + 1 + 1) + (2 + 2 + 2 + 2) =

4y + 8 = B = 4(y + 2)

× F = 5(y + 2) – (y – 2) =

(5y + 10) + (-y + 2) =

(5y – y) + (10 + 2) =

4y + 12 = 4(y + 3) ≠ 4(y + 2)

A customer left an 18% gratuity of $27. What was the amount of the bill? $27.18 $43.00 $150.00 $486.00

Answers

Answer:

The amount of the bill was $150.

Step-by-step explanation:

With the information provided, you can use a rule of three to find the amount of the bill which would represent 100% given that $27 represent 18%:

18%     →    27

100%   →      x

x=(100*27)/18

x=150

According to this, the answer is that the amount of the bill was $150.

A space ship traveled from the earth
to the moon in 248 hours. How fast did it travel?

Answers

Is there any measurement units?

Which graph represents a positive correlation?

Answers

Answer:Your answer is C

Step-by-step explanation:

Help me on this and where do I put the dots?

Answers

Step-by-step explanation:

for the first one vount down 7 from -2 then for the second one its right on 5

Please help!!!! PLEASE!
Consider the following pair of equations:

y = x + 4
y = −2x − 2

Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution in (x, y) form. (5 points)

Answers

Answer:

(-2,2)

Step-by-step explanation:

Substitute answer for y in first equation (y=x + 4) into y of second equation

x+4=-2x-2

3x=-6

x=-2

put value of x (-2) into either equation to solve for y

y=x+4

y=-2+4

y=2

or y=-2x-2

y=-2(-2)-2

y=4-2

y=2

Enter the equation of the circle with the given center and radius.

Center: (0, 5); radius: 5

The equation of the circle is

Answers

Answer:

[tex](x-0)^{2} + (y-5)^{2} = 25[/tex]

Step-by-step explanation:

The "template" equation of a circle is:

[tex](x-h)^{2} + (y-k)^{2} = r^{2}[/tex]

All you're doing after that, is filling in the blanks:

h = 0

k = 5

r = 5

Answer:

Correct answer:

(x−0)² + ( y−5)²=5²

Explanation:

The equation of a circle is (x−h)²+(y−k)²=r²

The center is (0,5) or, written another way (h,k). Substituting 0 for h and 5 for k, our formula becomes (x−0)²+(y−5)²=5²

Finally, the formula of the circle is (x−0)²+(y−5)²=25

pls help me with these

Answers

Answer:

18= -6x+11

19= 2(x+1)

20= 11x+2

21= -6x+5

22= 33x-81

Which of the following is an example of scale?
O 0.25 inches = 1 foot
O 26 feet x 19 feet
O 12 inches in 1 foot
Room holds 1427 rubber ducks

Pls help me :3

Answers

Answer:

12 inches in 1 foot

Step-by-step explanation:

In this problem, we need to find an example that is a scale.

There must be a relation between two units.

There are many types of units of lengths. These can be metre, cm, mm, foot, inches.

The relation between inch and foot is given by :

1 foot = 12 inch

So, we can say there are 12 inches in 1 foot.

Hence, the correct option is (c).

a pizza costs $18.
a soda costs $2.50 .
Tax is 10%. What
is the total spent

Answers

18+2.50=20.50 so tax is 10% so you can put that into a calculator as 20.50*0.10 which equals 2.05 so just add 20.50 and 2.05 which is 22.55 is your final answer

helpppppppppppppppppppppppppppppppp

Answers

Answer: A

Step-by-step explanation:

So in what do you want me to help you with?

If one adult works 4 weeks per month at
40 hours per week, what is the minimum hourly
wage, to the nearest cent, that person must
earn in order to meet the family's budget
needs?

Answers

Answer:

15.21

Step-by-step explanation:

All of the bills total to $2432.50. The person works 160 hours in a month. $2432.50 ÷ 160 = $15.20, BUT:

$15.20 × 160 = $2432, which is 50 cents short of what they need, so one extra cent in their wage will give them the amount they need.

$15.21 × 160 = $2433.60

Help- f(x)=4(x-5)(x+2)

Finish:
Started with phone conversations and I
Flew out to see you, it's raining outside
We sat by the water and talked about life
Oh

Answers

Answer:

What are you trying to find?

Step-by-step explanation:

Triangle PQR is a right triangle. Triangle P Q R. Angle P is 90 degrees, angle Q is x degrees, angle R is 2 x degrees. Which equation could be used to find the measure of Angle Q? 180 = 3 x 180 = 3 x + 90 180 = 2 x + 90 90 = x + 2 x

Answers

Answer:

180 = 3x + 90°

Step-by-step explanation:

180 = x + 2x + 90

Answer:

B

Step-by-step explanation:

Got it right on edgy

SOMEBODY HELP PLSSSSS IT WOULD HELP ME ALOTT!!1

Answers

would it be 5 ? i’m sorry i’m not very sure.
I hope this helps 25, 27, 29, 31, 33

1. A number is drawn from the set {1,2,3,4,...,20} Find the probability that
a. the number chosen is odd number
b. the number chosen is divisible by 10
2. Card is drawn from a standard deck of 52 cards. Find the probability of
c. getting a red card
d. drawing a number card
3. A ball is picked randomly from a box containing 4 red, 5 blue, 6 green balls. Find the probability that
e. the ball is color red
f. the ball is not white​

Answers

Answer:

1.A. The number chosen is odd number

2.D. Drawing a number card

3.F. The ball is not white

Step-by-step explanation:

SANA NAKATULONG PO ITO

CORRECT ME IF I WRONG

Answer:

1a. 1/2             3e. 4/15

1b. 1/10             3f. 1

2c.

2d.

Step-by-step explanation:

just do it that way

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