2x^2 - y^2+ xy Phân tích đa thức thành nhân tử

Answer:

lol

Step-by-step explanation:

to get x in quadratic equations, factor it

Answer:

y = -1/5x

Step-by-step explanation:

Using the 'y=mx+c' form for the equation:

Find the slope (m):

Since the product of both slopes should be -1 (if they are perpendicular),

s₁s₂  = -1

5*s₂ = -1

s₂ = -1/5x

Hence, the slope (m) is -1/5x.

Substituting the slope value into 'y=mx+c':

y = -1/5x+c -----(1)

Substituting the point (-5,1) into the equation (1):

1 = -1/5 * (-5) + c

1 = 1 + c

c = 0

Substitiuting 'c=0' into 'y = -1/5x+c':

y = -1/5x

Hence,

y = -1/5x

Hope this helps and be sure to have a wonderful time ahead at Brainly! :D

Answer:

2x - 9

Step-by-step explanation:

let the number be x then multiplying by 2 is 2x , so

2x - 9 ← algebraic expression

Answer:

52 ft.

Step-by-step explanation:

In this case, we need to calculate a perimeter, which is the sum of all sides of the rectangle.

So, rectangles has opposite sides equal, therefore, the perimeter should be:

; having L as the larger side.

Hence, the strip of wallpaper needs to be as least 52 ft.

Answer:

12/12=1

2.5/2.5=1

5/_=1

mysterty number is 5

5.5./_=1

mystery number is 5

Step-by-step explanation:

So a line that is perpendicular is a line that intercepts other line at a 90 degree angle.

Slope of perpendicular lines is the opposite sign and the reciprocal of the other.

So if your slope was 2 the perpendicular line would have a slope of -1/2.

So the equation, 2x + y = 3

Can be rewritten as

y= -2x+3

Perpendicular slope: 1/2

Since it intercepts/ passes the coordinates (5,4) it means that those values are included in the function input x and output y.

y=mx+b

4=1/2(5)+b

Solve for b (y intercept)

4-2.5=b

1.5=b

So the equation of the perpendicular is

y=1/2x+3/2 or y=.5x+1.5

For part A, x equals 0.

Therefore (7²)⁰=7⁰=1

For part B, x could be any number because 0 multiplied by any number equals 0. eg. (7⁰)⁹=7⁰=1

Hope this helps!

Answer:

y = 6x-13

Step-by-step explanation:

Given: y+1=6(x-2)

Distribute 6: y +1 = 6x -12

Isolate y: y = 6x -13 (subtracted 1 from both sides)

This is now in the form y = mx +b

Hope this helps!

Answer:

I don't see the image either-

Step-by-step explanation:

Upload this again please so we can answer this :')

Answer: 800 dollars per month

Step-by-step explanation:

12000 divided by 15 is 800

800 x 15 = 12000

Answer:

what question is this lol

Step-by-step explanation:

Answer:

below what

Step-by-step explanation:

Answer:

[tex] \frac{8}{21} . \: \frac{5}{16} \\ \\ \frac{5}{42} \\ \\ 0.119[/tex]

[tex] \frac{12}{25} . \: \frac{15}{16} \\ \\ \frac{9}{20} \\ \\ 0.45[/tex]

Answer:

8/21 . 5/16 = 5/42

12/25 . 15/16 = 9/20

Step-by-step explanation:

16 = 2 x 8

8/21 . 5/16

= ( 8 x 5 ) / ( 21 x 16 )

= ( 8 x 5 ) / ( 21 x 2 x 8 )

= 5 / ( 21 x 2 )

= 5/42

12 = 3 x 4

15 = 3 x 5

25 = 5 x 5

16 = 4 x 4

12/25 . 15/16

= ( 3 x 4 ) / ( 5 x 5 ) . ( 3 x 5 ) / ( 4 x 4 )

= ( 3 x 4 x 3 x 5 ) / ( 5 x 5 x 4 x 4 )

= ( 3 x 3 ) / ( 5 x 4 )

= 9/20

Answer:

(3b-2a)^2=9b^2-12ab+4a^2

Step-by-step explanation:

Using the formula (a-b)^2=a^2-2ab-b^2, you can plug in the values to get your answer. (Sorry I can't really explain more, it's just using the formula. Hope this helps)

Answer:

m‹F=25°

AB=12

Step-by-step explanation:

HOPE IT HELPS

Answer:

33

Step-by-step explanation:

if its in () its the 1th step and then the rest u can continue

Answer:

If there were 100 points possible, you earned 70.

Step-by-step explanation:

So 70% means 70 per cent which means 70 parts per 100 parts. So this means that out of the total 100 maximum possible points, you have earned 70 of them but did not earn 30

Answer:

p = 35°

Step-by-step explanation:

Angles on a straight line add up to 180° so:

2p + 5 + 3p = 180° (simplify)

5p + 5 = 180° (subtract 5 from both sides)

5p = 175° (divide both sides by 5)

p = 35°

Hope this helps!

Answer:

p=35

Step-by-step explanation:

You have to add the two together and set them equal to 180, so 2p+5+3p=180 so 5p=175, so p=35.

Answer:

We conclude that the question illustrates associative property.

The full price of a rashguard is $25 and the expression for the full price is 3 (x - 5) = 60.

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,

Here,
Let the full price of each rashguard be x,
Rashguards sell for $5 less than full price.
x - 5
Miguel purchases 3 rashguards and pays a total of $60.
3 (x - 5) = 60
Simplifying,
x - 5 = 60 / 3
x - 5 = 20
x = 20 + 5
x = 25

Thus, the full price of a rashguard is $25 and the expression for the full price is 3 (x - 5) = 60.

Learn more about arithmetic here:

brainly.com/question/14753192

#SPJ6

Answer:

y = x + 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 2, 1) and (x₂, y₂ ) = (- 1, 2) ← 2 points on the line

m = [tex]\frac{2-1}{-1-(-2)}[/tex] = [tex]\frac{1}{-1+2}[/tex] = [tex]\frac{1}{1}[/tex] = 1

The line crosses the y- axis at (0, 2 ) ⇒ c = 2

y = x + 2 ← equation of line

Answer:

Step-by-step explanation:

∠1 + ∠BFE = 180   {linear pair}

x + 16 + 3x + 20 = 180

x + 3x + 16 + 20 = 180   {Combine like terms}

4x + 36 = 180

Subtract 36 from both sides

4x = 180 - 36

4x = 144

Divide both sides by 4

x = 144/4

x = 36

get a journal and pencil and when you go to sleep, don't put on any alarms. then write down in the morning what you dreamt about. every detail you can thing of. if you have the dream again, write down more details. this will help you begin to lucid dream.

Answer:

Step-by-step explanation:

<2=2*1

<4= 2*2

Answer:

gb

Step-by-step explanation:

uhygt