Mathematics High School

Simplify the rational expression. Find all numbers that must be excluded from the domain of the simplified rational expression.
I need the bottom part

Simplify The Rational Expression. Find All Numbers That Must Be Excluded From The Domain Of The Simplified

Answers

Answer 1

Answer:

y ≠ 9, y ≠ 3

Step-by-step explanation:

y² -12y +27 = (y - 9) (y - 3)

Denominator ≠ 0

y ≠ 9 or y ≠ 3

Related Questions

The temperature at 5:30 A.M. was recorded as 7 degrees below zero on the Fahrenheit scale. Write the temperature using a signed number​

Answers

Answer:

mhhm yea this is very questioned questioned

Step-by-step explanation:

yea mhm

A bus and a car both drive 145 miles from town A to town B. The bus drives 8 miles per hour faster than the car. If it takes the car 2 hours and 54 minutes to arrive, how long does it take for the bus to arrive?

Answers

Answer: 2.5 hours

Step-by-step explanation:

Given

Distance between A to B town is [tex]d=145\ miles[/tex]

Bus speed is 9 miles per hour faster than car

time taken by car is 2 hours and 54 minutes i.e.

[tex]t=2+\dfrac{54}{60}=2+0.9=2.9\ hr[/tex]

Speed of car is v

[tex]\Rightarrow v=\dfrac{d}{t}=\dfrac{145}{2.9}=50\ mph[/tex]

Speed of bus is [tex]v+8=50+8=58\ mph[/tex]

time taken by bus is t'

[tex]\Rightarrow t'=\dfrac{d}{v+8}=\dfrac{145}{58}=2.5\ hr\\\\\\\Rightarrow t'=2\ hr\ \text{and}\ 30\ \text{minutes}[/tex]

What is the GCF of 28x3 and 28x5?

Answers

Answer:

28x^3

Step-by-step explanation:

Ms. F arrived at the Wizarding World of Harry potter at 9:12 am. It took her 1 hour and 16 minutes to get there from leaving her house. What time did she leave her house?

Answers

Answer:

She left her house at 7:56 am

Step-by-step explanation:

On a boat tour, there are half as many children as there are adults. There are 30 people on the tour.

Answers

Answer:

I dont know your question. But, im guessing how many children are there. There are 15 children on the boat tour.

Step-by-step explanation:

Half of 30 is 15.

Answer:

hay15 niños

Step-by-step explanation:

Samuel is a teacher and takes home 75 papers to grade over the weekend. He can grade at a rate of 7 papers per hour. How many papers would Samuel have remaining to grade after working for 8 hours?

Answers

Answer: 19

Step-by-step explanation:

75 papers need to be marked

He grades 7 papers per hour

To find out how many paper he graded in 8 hours:

7 x 8

(7 is the number of papers graded in an hour)

(8 is the number of hours)

7 x 8 = 56

(56 is the number of papers he graded in 8 hours)

Now, there was a total of 75.

To find the remaining number of test sheets:

75 - 56

(75 is the total number of papers)

(56 is the number of papers graded)

75 - 56 = 19

Therefore, there are 19 papers remaining to grade.

Todd uses white tiles and some black tiles to make mosaic the mosaic has a total area of 144 square centimeters each tile has an area of 3 square centimeters how many black tiles did Todd use

Answers

Answer:

27 tiles

Step-by-step explanation:

Here is the complete question :

Todd uses 21 white tiles and some black tiles to make a mosaic.the mosaic has a total area of 144 square centimeters. Each tile has an area of 3 square centimeters. How many black tiles did Todd use

Steps to take to determine the answer

Determine the total area of the white tiles used. This can be determined by multiplying the number of white tiles by the area of a tilesubtract the area of the white tiles from the total area of the mosaic. Divide the answer derived in the previous step by 3

Area of the white tile = area of each tile x total white tiles used

3 x 21 = 63cm²

144cm² - 63cm² = 81cm²

Number of black tiles used = 81cm² / 3cm² = 27 tiles

PLEASE HELP QUICKLY I WILL MARK YOU BRAINLIEST.

Mr. Rector and Ms. Mitchell are grading papers. Mr. Rector can grade 24 papers in 10 minutes. Ms. Mitchell can grade 30 papers in 8 minutes. How many more papers per minute can Ms. Mitchell grade?

Answers

Answer: 1.35

Step-by-step explanation:

Answer:

1.35

Step-by-step explanation:

We need to identify our independent variables and dependent variables.

The number of papers graded depend on the amount of time.

The amount of time is the independent variable

The papers graded depends us the dependent variable

Divide the independent variable by the dependent variable to find papers per minute

For Ms.Mitchell the papers per minute is

For Mr.Rector, the papers per minute is

Subtract 2.4 from 3.75.

The answer is 1.35

Need help with this question.​

Answers

Answer:

D.

Step-by-step explanation:

the smallest angle correpsonds with the smallest side, and longest angle with longest side. hope it helped

5d = 75 d =

94 = g + 32 g =

Answers

Answer:

5d = 75 d = 0

i dont know how to do 94 = g + 32 g = sorry

Step-by-step explanation:

Please help with explanation.

Answers

Answer:

hope help you stay happy

What is the vertex for the parabola shown?

A) (1.2)

B) (2,1)

C) (0.1.5)

D) (-1,3)

Answers

Answer:

the answer is B

Step-by-step explanation: Its B because the vertex is in the middle

The area of a sector is. What does the variable n represent?

Answers

the number of degree in the central angle

N is the degree of the central angle of the sector.

What is sector in an angle?

The sector angle is the angle subtended between two radii of circle to the center of Circle.

If the radius of the circle is 10 inches, and the central angle of the sector is 90 degrees, the area of the sector can be found as follows:

90/360 * (3.14 * 10^2).

Following the order of operations, the equation proceeds as follows:

1/4 * (3.14 * 100) = 1/4 * 314 = 78.5.

Thus, the area of the sector is 78.5 square inches.

The formula to find the area of a sector is A = N/360 x (pi x r^2).

A sector is a section of a circle. In the formula given, A is the area of the sector,

N is the degree of the central angle of the sector, pi is an irrational number that can be rounded to 3.14, and r is the length of the radius of the circle.

Hence,  N is the degree of the central angle of the sector.

Learn more about sector:

https://brainly.com/question/15591260

#SPJ2

Crystal's soccer team won 14 of the 20 games they played last season. What percent of games played did they win?​

Answers

Answer:

70%

Step-by-step explanation:

hooe this helps plz follow ❤❤

Drew's car weighs 1,344 kilograms. His car weighs 7 times as much as his motorcycle. How many grams does his motorcycle weigh? Note: 1 kilogram = 1000 grams

Answers

Answer:

192,000 grams

Step-by-step explanation:

turn 1,344 kilograms to grams, which gives u 1344000 grams

divide 1344000 by 7 and you get 192,000 grams. Hope this helped :)

The width of a rectangle is 7 feet and the diagonal legnth of the rectangle is 11 feet. Which measurement is closest to the length of this rectangle in feet?

Answers

Answer:

8.49 feet

Step-by-step explanation:

Characteristics of a rectangle

A rectangle is a quadrilateral It has two parallel sides the diagonals of a rectangle bisect each other and they are equal in length

One diagonal of a rectangle divides a rectangle into two right angled triangles. Thus, the length of the rectangle can be determined using the Pythagoras theorem

The Pythagoras theorem : a² + b² = c²

where a = length = ?

b = width = 7

c = diagonal = 11

7² + a² = 11²

49² + a² = 121²

a² = 121 - 49

a² = 72

calculate the square root of 72

a = 8.49 feet

Answer:

8.49 feet

Step-by-step explanation:

Expand and simplify 4(2p+7)+6(8q-2)

Answers

Answer:

8 p + 48 q + 16

Step-by-step explanation:

i got the last one wrong , pls give me the right answer i need atleast a 75%

Answers

The answer is A!! Your welcomeeee
Answer is a to this question

Can someone plz help me on this plz

Answers

Ok so ... the answer is B:264 because you multiply all the numbers because volume = l x w x h... which also is 6 x 11 x 4 and that’s how I got B :)

10 and
In acute triangle ABC, side b = 12, side c =
mLA = 42. Find side a.

Answers

Answer:

20

Step-by-step explanation:

I'm not completely sure, however.

12+10 = 22

42-22 = 20

I only need answer for part A.

Answers

Answer:

y= 1/6 x - 1 1/2

p-by-step explanation:

Answer:

[tex]y=\frac{1}{6} x - 1\frac{1}{2}[/tex]

Step-by-step explanation:

have a great day :D

Question 13 (1 point)
(07.05 MC)
What is the solution to the equation 4x + 2(x - 2) = 4x + x - 12? (1 point)
O 1) -8
2) -1
3) 1
04) 8

Answers

Answer:

-8

Step-by-step explanation:

4x+2(x-2)=4x+x-12

4x+2x-4=5x-12

6x+2x-4=5x-12

x-4=-12

x=-8

Can someone teach me how to solve this

Answers

28.9

Step-by-step explanation:

Multiply the denominator by the number on the other side. This will give you 28.9 as t. To check your work, divide 28.9/8.5. This will give you 3.4.

The other guy is correct

An animal trainer at the aquarium
trains bottlenose dolphins to jump
for performances. One dolphin
jumped out of the water at a height
of 15 feet and then dove back under
the water to a depth of 20 feet. Write
an expression to represent the vertical
distance the dolphin traveled. What is
the vertical distance?

Answers

Answer:

15 up plus 20 down= 35 feet.

Step-by-step explanation:

15+20=35

determine the total surface area.

Answers

Answer:

it should be 288

Step-by-step explanation:

Determine the radius of the circle below.

Answers

Answer:

r = 22.629

Step-by-step explanation:

Using the Pythagorean theorem:

(35 + r)² = 53² + r²

1225 + 70r + r²  = 2809 + r²

subtract r² from each side of the equation:

1225 + 70r = 2809

subtract 1225 from each side:

70r = 1584

r = 22.629

Which graph below shows the rule: output = 5 times input?

Answers

Given:

Output = 5 times input

To find:

The graph for the given statement.

Solution:

We know that, y-axis represents the output and x-axis represents the input.

Let y be the output and x be the input. Then the given statement can be written as

[tex]y=5x[/tex]

Here, the slope of the line is 5 because the value of [tex]m[/tex] is 5 on comparing the equation with [tex]y=mx+b[/tex].

It means the line is steeper because the vertical change is greater than the horizontal change.

Therefore, the correct option is A.

pleaseeeee I needdd help, please

find x value using the quadrants

sinx = ( - sin²x + cos²x)
​

Answers

Answer:

Step-by-step explanation:

sin²x+cos²x = 1. No Matter What is the value of x. For Explanation: Sin x is opposite_side/hypotenuse of a Right angle triangle. Cos x is adjacent_side/hypotenuse of a Right angle triangle.

How many arms do a 6 starfish have?

Answers

Wouldn’t it be 30 over all??

So 30 is the answer

Hope this helps

please help due pretty soon​

Answers

Answer:

C. y - 1 = 5( x - 8)

Step-by-step explanation:

Since line is passing through (8, 1) and has a slope 5.

So, the equation of line in point slope form is given as:

y - 1 = 5( x - 8)

Answer: C

Step-by-step explanation:

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