x²-9y²
can someone assist plz​

Answers

Answer 1

Answer:

[tex] {x}^{2} - 9 {y}^{2} \\ = {x}^{2} - {3}^{2} {y}^{2} \\ = {x}^{2} - {(3y)}^{2} \\ = (x - 3y)(x + 3y)[/tex]


Related Questions

Please Answer Then I Will Mark You as Brainliest :D

Answers

Answer:

okay

Step-by-step explanation:

Can some plz help me with this problem

Answers

Answer:

Choice D

Step-by-step explanation:

According to the graph, f(-8)=-8

Write the quadratic equation in standard form.

Answers

Step-by-step explanation: If we want to put this in standard form, we first want to add 2x² to both sides of the equation to get 2x² + 5x - 17 = 0.

Notice that I have set up the left side of the equation in descending order of powers. In other words, first the x² term, then the x term, then the constant term.

answer plz plz plz plz

Answers

Step-by-step explanation:

Put a point at (5,3) then go up 3 and right 5 for the second point then do it again for the third point.

x2+nx -mx-nm = 0
Plzzzzzzzzzzzzzzzz help me

Answers

Answer:

I don’t know

Step-by-step explanation:

Solve by completing the square: +12x-13=0

Answers

Answer:

Simplified :

x = 13/12

(Mixed number) :

x = 1 1/12

Step-by-step explanation:

Margaret is going on vacation to Alaska. She has 13 sweaters and needs to choose to take with her on vacation. How many ways can she choose the 6 sweaters to take?
A.) 1,716
B.) 1,235,520
C.) 78
D.) 575​

Answers

Answer:

The answer is A

Step-by-step explanation: I just took the quiz.

Help please I don’t understand

Answers

What are the answers

solve by elimination 5x+2y=-11 and 3x+2y=-9

Answers

Answer:

[tex]5x + 2y = - 11 - - - (a) \\ 3x + 2y = - 9 - - - (b) \\ (a) - (b) : \\ 2x + 0y = - 2 \\ x = - 1 \\ (3 \times - 1) + 2y = - 9 \\ - 3 + 2y = - 9 \\ 2y = - 6 \\ y = - 3 \\ { \boxed{x = - 1}} \\ { \boxed{y = - 3}}[/tex]

Answer:

(- 1, - 3 )

Step-by-step explanation:

Given the 2 equations

5x + 2y = - 11 → (1)

3x + 2y = - 9 → (2)

Subtract (2) from (1) term by term to eliminate y

2x = - 2 ( divide both sides by - 2)

x = - 1

Substitute x = - 1 into either of the 2 equations and solve for y

Substituting into (1)

5(- 1) + 2y = - 11

- 5 + 2y = - 11 ( add 5 to both sides )

2y = - 6 ( divide both sides by 2 )

y = - 3

solution is (- 1, - 3 )

Solve for x the triangles In Each pair LMN~LRS
Please help quickly and show work pleasee

Answers

Given:

[tex]\Delta LMN\sim \Delta LRS[/tex]

To find:

The value of x.

Solution:

We have,

[tex]\Delta LMN\sim \Delta LRS[/tex]

We know that the corresponding sides of similar triangles are proportional. So,

[tex]\dfrac{LM}{LR}=\dfrac{LN}{LS}[/tex]

[tex]\dfrac{18}{2x-18}=\dfrac{30}{10}[/tex]

[tex]\dfrac{18}{2x-18}=3[/tex]

[tex]18=3(2x-18)[/tex]

Using distributive property, we get

[tex]18=3(2x)-3(18)[/tex]

[tex]18=6x-54[/tex]

[tex]18+54=6x[/tex]

[tex]72=6x[/tex]

Divide both sides by 6.

[tex]\dfrac{72}{6}=x[/tex]

[tex]12=x[/tex]

Therefore, the correct option is A.

Multiply (2x+3y) and (3x+4y-5z)
please answer this fast​

Answers

Answer:

6x² + 12y² + 17xy - 25xz

Step-by-step explanation:

(2x + 3y) (3x + 4y - 5z)

= 6x² + 8xy - 10xz + 9xy + 12y² - 15yz

= 6x² + 12y² + 8xy + 9xy - 10xz- 15yz

= 6x² + 12y² + xy (8 + 9) - xz (10 + 15)

= 6x² + 12y² + 17xy - 25xz

-10xz-15yz+6x^2+17xy+12y^2

please help me on math

Answers

Answer:

Hello! answer: b = 75

Step-by-step explanation:

We have to find b so we have to work backwards to find the answer the steps would be to find c^2 subtract that by a^2 and then you get b^2 and have to find out what multiplied by itself equals b^2 so... 85 × 85 = 7225 40 × 40 = 1600 7225 - 1600 = 5625 75 × 75 = 5625 therefore b = 75 hope that helps!

how many 2and three quaterkg are there in 16and a half kg​

Answers

Answer:

a quarter of a kilogram is just over half a pound in Imperial measurements. 1 kg is 2.2 How many lbs are there in 4.2 kg? 1,502 Views  Which is smaller out of 2/-3 and -3/4? 4,328 Views 1/4 kg = 16 x .55125= 8.82 ounces. 31 views.

BRAINLIEST PLS

Step-by-step explanation:

Please help me with this

Answers

Answer:

Step-by-step explanation:

[tex](-1)^{n}[/tex] * [tex]2^{n}[/tex]

then

[tex](-1)^{6}[/tex] * [tex]2^{6}[/tex] =  64

Line AB has the endpoints A (8, -2) and B(7, 3) What are the X-and Y-coordinates of point C that partitions AB at a 6 : 3 ratio.
C is at (______, ______)
Round your answer to the nearest thousandth, if necessary​

Answers

SALLY SOLD SHINEY SSEA SHELLS BY THE SHINY SEA SHIRE

Which statement about convergent infinite geometric series is true?

a.The graph of a convergent infinite geometric series goes to infinity.

b.The graph of an infinite geometric series curves away from its sum.

c.A finite geometric sequence will have an infinite geometric series.

d.An infinite geometric series converges if −1

Answers

Answer:

B. The graph curves away from its sum

Step-by-step explanation:

A convergent infinite geometric series, the graph of the series curves away from the sum, the correct option is B.

What is a Geometric Series?

A sequence of numbers such that the consecutive term is increasing or decreasing by a fixed ratio is called a geometric series.

The standard equation for geometric series is

Tₙ = a₁ rⁿ⁻¹

The sum of an infinite geometric series is given by

S = a₁/(1-r)

where a₁ is the first term and r is the common ratio.

The graph of an infinite series curves away from its sum.

To know more about Geometric Series

https://brainly.com/question/4617980

#SPJ5

please help me...?

i'll give brainliest to correct answer! :D

Answers

Answer:

D) 100% Positve

Step-by-step explanation:

You would choose the second option (y=1/3x) because the slope would be 1/3. Think of the slope as your directions, you go up 1 over to the right 3 times. Since the y-intercept is 0, you don't have to add anything at the end.

Hope this answer makes sense.

PLSSSSSSSSSSSSSSSS HELP PPLLASSSSSSSS

Answers

Answer:

2.77777777778

Step-by-step explanation:

2.7 hope this helped

What do you call a fake noodle

Answers

Answer:

an impasta

Step-by-step explanation:

sus

Answer: an Impasta

Step-by-step explanation:

Give me brainliest please lol

pls help me with this‼️

Answers

Answer:

A

Step-by-step explanation:

for D I draw it out and it didn’t make sense

Pls help this is probably super easy but not for me

A student is standing 20 feet away from the base of a tree. he looks to the top of the tree from a 50 degree angle of elevation. His eyes are 5 feet above the ground. using cos 50°≈0.64, what is the height of the tree to the nearest foot?

A. 29 feet
B. 24 feet
C. 31 feet
D. 36 feet

Answers

Answer:

A.    29 feet

Step-by-step explanation:

Use cos to find the hypotenuse

cos  = adj/hp

0.64 = 20/hyp

hyp = 20/0.64

hyp = 31.25

---------------------------

Use Pythagorean Theorem to find the height of tree above eyes

a² + b² = c²

a² + 20² = 31.25²

a² = 31.25² - 20²

a² = 576.5625

a = 24  (to the nearest foot)

-------------------------------

Finally add in the eye height

h = 24 + 5

h = 29 feet

Answer:

A. 29 feet

Step-by-step explanation:

Find the perimeter of a field with the following dimensions:

Length: x^2+3x-1


Width: 2x+3

Answers

Answer:

yo the answer would be 2x^2 +10x +4. I think you are taking the same test I am

Which expression is equivalent to (-18) - 36n?

Answers

Answer:

D

Step-by-step explanation:

-18 - 36n = -6(3 + 6n).

Use distributive property.

-6(3 + 6n)

-18 + (-36n)

-18 - 36n

-18 - 36n = -18 - 36n

Have a nice day!

Answer:

D. -6 (3 + 6n)

Step-by-step explanation:

When you distribute [tex]-6 (3 + 6n)[/tex], you get [tex]-18 + -36n.[/tex]

[tex]-18 + -36n = (-18) - 36n.[/tex]

Please help me. I need help​

Answers

Answer:

hope this helps you out :)

The weight, in pounds, of a newborn baby t months after birth can be modeled by the equation W=10+2t What is the slope of the equation and what is its interpretation in the context of the problem?

Answers

Answer:

m = 2

Step-by-step explanation:

W=10+2t has the form y = mx + b, the slope-intercept form.  Comparing

y = b + mx to

w = 10 + 2t

we see that the slope, m, is 2.  This signifies that the baby gains 2 pounds per month shortly after birth.

What is the value of x?

Answers

Step-by-step explanation:

Hello! x = 24 This is a complementary angle so it will add up to 90 degrees in total so 24 × 3 = 72 and 72 - 6 = 66 and 66 + 24 = 90 so x = 24 HOPE THAT HELPS!

Answer:

X = 24

Step-by-step explanation:

so you will have to add all the angles and get 90

3x - 6 +x=90

4x =96

x=24

check your answer.

3 x 24

72 -6 = 66

66 +24 = 90

What is the missing angle to a triangle if the two given angles are 80 degrees and 80 degrees?

Answers

Answer:

20

Step-by-step explanation:

Help please will award brainliest!!

Answers

Answer:

The answer is -x+12/ x (x-2)

Step-by-step explanation:

A line passes through the point (12,-4) and is perpendicular to the line with the
equation y = 6x + 3. What's the equation of the line?
A) y = 6x - 76
B) y= -1/64 - 2
C) y= -4/5x+ 2
D) y = -6x + 68

Answers

Answer:

y = -1/6x - 2

Step-by-step explanation:

y = -1/6x + b

-4 = -1/6(12) + b

-4 = -2 + b

-2 = b

How can you add, subtract, and multiply decimals.

Answers

Type the numbers you want to add , subtract and multiply into your calculator or do metal math .
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