Which expression is a factor of 36x2−9?


6x−9


18x−9


6x−3


18x−3

Answers

Answer 1

Answer:

C

Step-by-step explanation:

Comment

This is called the difference of squares. Both sides of the minus sigh must be perfect squares or able to be factored in such a way that you are left with perfect squares.  36x^2 is a perfect square. If you take its square root, you get √36x^2 or 6x. That makes B and D incorrect. So what about A and C?

A:The left side of 36x^2 is correct, but the right side is not. The left side of 36x^2 has a square root of 6x.

The right side has been left alone and it shouldn't be.

The 9 is a perfect square. Its square root is 3. That makes C the answer.


Related Questions

What’s 20 times 69?????

Answers

Answer:

1,380

Step-by-step explanation:

Answer:

20x69 = 1,380

NEED HELP AND RIGHT ANSWER DONT RUSH! REWARD BRAINLIEST

Answers

Answer:

1.) x = 49 or x = -49

2.) x = -1/2 or x = -5

4. y=(x+7)(x-7) so the last one I think idfk I just factored it
5. Y = (2x+1) (x-5)

Here is a polygon. Use the scale factor of 1/2 determine the new side length for A *

Answers

Answer:

i need to see the polygon my guy

Step-by-step explanation:

PLEASE HELP IM BEING TIMED I WILL MARK BRAINLY
Which inference is reasonable based on the data in the scatter plot?
A If Person A goes to school for 16 years and Person B goes to school for 12 years, Person B can expect to make
more money than Person A.
* If Person B does not go to college and Person A goes to college, Person B will earn more money than Person A.
© If Person A goes to school twice as long as Person B, Person A can expect to make twice as much as Person B.
D
If Person B goes to college and Person A does not go to college, Person B is likely to earn more money than
Person A.

Answers

We don't have the scatter plot

Find the unknown side length x. Write your answer in simplest radical form

Answers

Answer:

B

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

x² + 30² = 50²

x² + 900 = 2500 ( subtract 900 from both sides )

x² = 1600 ( take the square root of both sides )

x = [tex]\sqrt{1600}[/tex] = 40 → B

Leah puts together gift bags of toys to sell at the flee market. She places exactly 6 toys in each bag. She only sells full bags of toys Leah has 280 toy cars. She can fill 46 toy cars Part B Leah has enough toy trucks to fill 25 gift bags. How many toy cars and toy trucks were put in gift bags to sell at the flee market

Answers

Answer:

320 toy cars and 25 toy trucks

Step-by-step explanation:

‼️ PLEASEEE HELPP ‼️

Answers

Answer:

x=18

Step-by-step explanation:

When a triangle has a midline the midline (in this case "3x-43") is 1/2 of the base of the triangle (in this case "4+x") so you can then say

4+x = 2(3x-43)

Solve that out to find that x = 18

Mr. Villa bought 91.25 inches of plastic
labeling tape. He will make labels 1.25 inches long
each. How many labels can he make?
1. What is asked in the problem?
A. the measurement of the tape
B. the labels can he make to the tape
C. inches of plastic labeling tape
D. Mr. Villas tape
2. What is the answer?
A. he can make 69 labels
B. he can make 70 labels
C. he can make 72 labels
D. he can make 73 labels​

Answers

Answer:

1) B. the labels can he make to the tape

2) D. he can make 73 labels

Step-by-step explanation:

1) We are told that He will make labels 1.25 inches long each. We are asked the number of labels he can make.

Thus, correct answer is option B.

2) He wants to make labels 1.25 inches long out of 91.25 inches of plastic.

Thus, number of labels he can make = 91.25/1.25 = 73 labels

What is the value of y when the value of x is 1

Answers

60 because every x number equals 60 y numbers also if you divide the last x number which is 4 by the last y number that is 240 you get 60

2x3(5-4)/6.2
Algebra

Answers

6/6.2 OR 0.627

Step-by-step explanation:

[tex] \frac{2 \times 3(5 - 4)}{6.2} [/tex]

6(1)/6.2 = 6/6.2 OR 0.627

Is 5 a solution to 3x=35

Answers

Answer:

No because 35/3 is 11.67 :))

Step-by-step explanation:

Hope this helped :)) Please mark brainliest:))

I need help ASAP !!
Find the length of a

Answers

Step-by-step explanation:

Please refer to the attachment

The dimensions for a rectangular prism are x + 3 for the length, x + 2 for the width, and x for the height. What is the volume of the prism? Enter your answer as a polynomial in standard form.

Answers

Answer:

the answer will be x^3 + 2x^2 + 9x

Step-by-step explanation:

as :

volume = l* w* h

= X * (X + 2) * (X + 3)

= X ^ 2 + 2 X (X + 3)

= x ^2 (X + 3) + 2x (X + 3)

= x^3 + 3x +2x ^2 + 6x

= x^3 + 2x^2 + 9x

what is the percent of change from 85 to 64

Answers

Answer:

-24.71%

Step-by-step explanation:

Please help, will mark brainliest, do not do for points or I will report, explanation please or no brainliest
Multiply.
2y - 1
2y + 1
4y^2 + 1

Answers

Answer:

to multiply-----

(2y-1)(2y+1)

2y(2y+1)-1(2y+1)

4y^2+2y-2y-1

=4y^2-1

Find the surface area of the pyramid. The side lengths of the base are equal.
there are 3 sides and a bottom

the base is 12 and the height is 17

Answers

if the side lengths of the base (12) are equal, then they are both 6. so the answer rounded to the nearest tenth is 148.7

el area de un rectangulo es 84 cm cuadrados si la base mide 9 cm cuanto mide la altura y cual es su perimetro?​

Answers

Si pero no pero hello en ese yo tu pero ella es un loca

BEN ELİF81 BU HESABI TAKİP EDERMİSİN EĞER BENİ TAKİP EDERSENİZ BEN DE SİZİ TAKİP EDERİM.
SİZE GÜVENİYORUM:)​

Answers

256363 okay i don’t know just try okay

4x - (-6) what’s the answer

Answers

Answer:

4x + 6

Step-by-step explanation:

If i remember correctly, two minuses make a positive, so -(-6) would turn into +6. I dont think that you can add a number with a variable to a regualar number so the answer is as simplified as it can get. If that one is wrong, try 10x. Hope this helps!

factorise 49x²-y² class 8​

Answers

Answer:

(7x-y)(7x+y)

Step-by-step explanation:

Answer:

(7x-y)×(7x+y)

Step-by-step explanation:

49x²-y²

7²x²-y²

(7x²)-y²

(7x-y)×(7x+y)

Can anyone help me with this problem # 9

Answers

Answer:

72 apples will be used and 4 will not

Answer:

She will use 72 apples and 4 apples will not be used.

Step-by-step explanation:

If she requires 9 apples for one pie... the she can make only 8 pies out of 76 apples.

hence she uses 72 apples...

what are the answers to the variables? and how do i find them?

Answers

Answer:

Step-by-step explanation:

I don't understand this? help me! Linear functions 9th-grade math

Answers

Answer:B i think

Step-by-step explanation:


1. Three different scout troops have 12, 24, and 18 members. These troops must march together in a parade in
the same number of columns. What is the greatest possible number of scouts in each column?
9 scouts
b. 6 scouts
c. 8 scouts
d. 4 scouts

Answers

Answer:

Step-by-step explanation:

12 = 2^2*3

24 = 2^3*3

18 = 2*3^2

Greatest common factor = 6

The answer is b. These troops must March together in a parade in 6 scouts.

someone write down the answers please i need it!!

Answers

Just found it on website - Corbettmaths

What is an equation of the line that passes through the point (- 7, 0) and is parallel to the line x + y = 1

Answers

Answer:

y = -x - 7

Step-by-step explanation:

If two lines are parallel to each other, they have the same slope.

The first line is x + y = 1.

First, let's put this into standard form.

x + y = 1

y = -x + 1

Now we have an equation in standard form. Its slope is -1. A line parallel to this one will also have a slope of -1.

Plug this value (-1) into your standard point-slope equation of y = mx + b.

y = -x + b

To find b, we want to plug in a value that we know is on this line: in this case, it is (-7, 0). Plug in the x and y values into the x and y of the standard equation.

0 = -1(-7) + b

To find b, multiply the slope and the input of x (-7)

0 = 7 + b

Now, subtract 7 from both sides to isolate b.

-7 = b

Plug this into your standard equation.

y = -x - 7

This equation is parallel to your given equation (y = -x + 1) and contains point (-7, 0)

Hope this helps!

Solve the equation y – 5x = –7 for y.
A. y = 5x – 7
B. y = –5x – 7
C. y = 5x + 7
D. y = –5x + 7

Answers

Answer:

the answer is B

Step-by-step explanation:

Answer: A. y = 5x -7

Step-by-step explanation:

Y - 5x = -7

+ 5x + 5x

Y = 5x - 7

**you can’t subtract -5x to -5x because it’s already a negative. It should be a positive 5x so you can move it to the other side.

Kailey is thinking of two numbers. The larger number is equal to twice the smaller increased by 12. Two times the smaller number plus three times the larger is equal to 100. Let x = smaller number and y = larger number. What is the first equation in the system? Do not put spaces in your answer.

Answers

Answer:

y=2x+12

Step-by-step explanation:

We first double the smaller number (2x) and then increased it by 12 (+12), this makes the larger number y.

solve for x or find x​

Answers

Answer:

63+ 2x- 17 = 180 degree

or, 2x+46=180degree

or, 2x=180-46=134degree

or, x = 134÷2=67 degree ans.

Which phrase describes the algebraic expression 5+w
A: the product of 5 and w
B: the quotſent of 5 and w
C: w more than 5
D: 5 less than w

Answers

Answer:

The answer probably is A

Other Questions
What is 2D coordinate system? 5 11 12+2 1 6= plese help me figuer this out What message does Shelley want to convey in Ode to the West Wind? How do I make sure grammar correct? find the perimeter of equivaul triangle whose each sides is 7cm At present, which hypothesis regarding white-nose syndrome seems to be supported by the most evidence?Please choose the correct answer from the following choices, and then select the submit answer button.Answer choicesopportunistic hypothesisviral spread hypothesisnovel pathogen hypothesismutation hypothesis WILL GIVE BRAINLIEST("Ozymandias" by Percy Bysshe Shelley)Do you think this poem has a positive, negative, or neutral view of nature? Use examples from the text. Pay close attention to the specific words that Shelley uses. Your answer should be 35 sentences. Jee from Boton goe to hi grandpa Iaac in New York by bu at an average peed of 35 mph and it take him 6 hour. In a while, Jee and Iaac go back from New York to Boton in Iaac' car at an average peed of 42 mph. How long doe Jee' trip from New York to Boton take? Which statement about evolution is true?a. Natural selection causes good mutations for the benefit of the species.b. The life span of an individual determines its fitness.c. Natural selection is a random event affecting different expressed characters equally.d. Organisms which are better and more complex are always more evolved.e. Only populations evolve, individual organisms do not. How does the pacing of this passage affect the reader's interpretation of the text select three options? Who discovered DNA Rosalind? Eddie Rickenbacker was a ___________________________ before he became a famous U.S. war pilot. Would the following compound inequality be classified as an and inequality or an or inequality? Inequality: 6 > x + 1 > 3 dont guess The general term that refers to the tendency of a parcel of air to either remain in place or change its initial position is maryam reduced 6.25% if her present weight is 45kg what ws her previous one What is the EPA role in monitoring air quality? evaluate using order of operations: A = L=50 W= 15 give your answer in simplest form How much time does it take for a fish swimming at a speed of 15 kilometers per hour to travel a distance of 900 kilometers? Mason had 30 minutes to do a three-problem quiz. He spent 9 1/4 minutes on question A and 3 4/5 minutes on question B. How much time did he have left for question C? Choisissez le pays pour complter la phrase.Une tradition unique en _______ est Les Touloulous.GuyaneFranceGuadeloupeMartinique