If a= -5, what is the value of a^2-4/a+2

Answer:

i think its b is it isn't dont beat me up

Answer: undefined slope

Answer:

x² - 100

Step-by-step explanation:

Use the FOIL method. The FOIL method is the way in which you multiply the terms:

FOIL stands for First, Outside, Inside, Last. Multiply:

First:

x * x = x²

Outside:

x * 10 = 10x

Inside:

-10 * x = -10x

Last:

-10 * 10 = -100

Combine like terms:

x² + 10x - 10x - 100

x² + (10x - 10x) - 100

x² - 100

x² - 100 is your answer.

~

Answer:

x^2-100

Step-by-step explanation:

Use the F.O.I.L method

x^2+100x-100x-100

Answer:

-9

Step-by-step explanation: It crosses the y axis. A y intercept is in when the x axis is 0. So the point would be (0,-9).

Answer:

( 5x-9) (5x+9)

Step-by-step explanation:

25 x^2 - 81

Rewriting

(5x)^2 -9^2

This is the difference of squares

a^2 -b^2 = ( a-b)(a+b)

(5x)^2 -9^2 = ( 5x-9) (5x+9)

25x^2 -81

Write the number in the exponential form with an exponent of 2

5^2 x^2 -81

Write the number in the exponential form with an exponent of 2

5^2 x^2 -9^2

Multiply the terms with equal exponents by multiplying their bases

(5x)^2 -9^2

Using a^2-b^2=(a-b)(a+b), factor the expression

(5x-9)× (5x+9)

Answer: (5x-9)×(5x+9)

PLEASE GIVE ME BRAINLIEST ANSWER

Answer:

Kindly check explanation

Step-by-step explanation:

Given that :

Let Cost of hats = h

Cost of scarves = 1.5h

Hence if hats cost $h, then the cost of scarves will be; (1.5 * h)

Using tables :

If the cost of an hat = $2

Hence,

N _____cost of hat(h) ____cost of scarve

1_______2*1 = 2 _________1.5(2) = 3

2______2 *2 = 4 _________1.5(4) = 6

3______2*3 = 6 _________1.5(6) = 9

4 ______ 2*4 = 8 ________1.5(8) = 12

5 ______2 *5=10 ________1.5(10) = 15

Cost of 6 hats and scarve:

Cost of hat:

2 * 6 = $12

1.5h = 1.5(12) = $18

Answer:

Step-by-step explanation:

Almost any situation where there is an unknown quantity can be represented by a linear equation, like figuring out income over time, calculating mileage rates, or predicting profit. Many people use linear equations every day, even if they do the calculations in their head without drawing a line graph.

Answer:

They don't bro

Step-by-step explanation:They should teach us how to do stuff that will actually help us in real world situations

Answer:

Step-by-step explanation:

Answer:

-4

Step-by-step explanation:

7x – 5(х + 8) = 5х – 28

7x - 5x + (-40) = 5x - 28

   + 5x         + 5x

 7x + (-40) = 10x - 28

- 7x             -  7x

-40 = 3x - 28

+ 28       + 28

-12 = 3x

Then divide.

-4

Answer:

reflection or translation

Step-by-step explanation:

this is more then likely the answer depending on how the 2 shapes are aligned and matched.

eg(the sides or shape is the exact same)

translation: is the exact shape and size just moved to another area

Answer:

take away the ', ', and '

Step-by-step explanation: if you take them away a'b'c' becomes abc

Answer:

I'm love this question... I'm a huge gamer myself.

Anyway.. I would say it depends on the year.

Answer:

gggggg 4 h5re gedfr

Step-by-step explanation:

fffffdfdfffeg45ty4

9514 1404 393

Answer:

  d.  z = -48

Step-by-step explanation:

When j ║ k, corresponding angles are congruent, so ...

  x = 4z +3y

  57 = y + z

and the same-side interior angles are supplementary:

  57 +x = 180   ⇒   x = 123

__

This lets us write two equations in y and z:

  3y +4z = 123

  y +z = 57

Using the second equation to write an expression for y, we have ...

  y = 57 -z

Substituting this into the first equation gives ...

  3(57 -z) +4z = 123

  z +171 = 123

  z = -48 . . . . . . . subtract 171

The value of z that makes j║k is -48.

___

The corresponding value of y is 105.

Answer:

a total number of games played would be 68

Answer:

In the diagram, 17 represents 25% of the total games. Since 17 times 3 equals 51, you use the first 3 columns to find an answer of 75%.

Step-by-step explanation: Make me brainliest plz

Answer:

-45

Step-by-step explanation:

9 multiplied by -5 is -45 because when multiplied a positive number to a negative number stay negative

Answer: 2 5/12

Step-by-step explanation:

Answer:

19

Step-by-step explanation:

ok is this just a joke?

nine plus ten

9 + 10 = 19

Answer:

Volume of box is [tex]432 in^3[/tex]

Step-by-step explanation:

Let x be the side of square corner

Length of box after cutting corners =22-2x

Breadth of box after cutting corners =15-2x

Height =x

Volume of box = (22-2x)(15-2x)x

Volume of box =[tex]4x^3-74x^2+330x[/tex]

Differentiate w.r.t x

[tex]\frac{dV}{dx}=12x^2-148x+330[/tex]

Substitute derivative =0

[tex]12x^2-148x+330=0\\x=\frac{37-\sqrt{379}}{6},\frac{37+\sqrt{379}}{6}\\\frac{d^2V}{dx^2}=24x-148[/tex]

at [tex]x=\frac{37-\sqrt{379}}{6}[/tex]

[tex]\frac{d^2V}{dx^2}=24x-148=24(\frac{37-\sqrt{379}}{6} )-148=-77.87 < 0[/tex] hence maximum

at  [tex]x=\frac{37+\sqrt{379}}{6}[/tex]

[tex]\frac{d^2V}{dx^2}=24x-148=24(\frac{37+\sqrt{379}}{6} )-148=77.87>0[/tex] hence minimum

So,Volume of box =[tex]4x^3-74x^2+330x=4(\frac{37-\sqrt{379}}{6} )^3-74(\frac{37-\sqrt{379}}{6} )^2+330(\frac{37-\sqrt{379}}{6} )=432.23 in^3[/tex]

Hence Volume of box is [tex]432 in^3[/tex]

Answer:

1.32

Step-by-step explanation:

we have the known,

2.13 km * 0.6214 miles = 1.323521 or 1.32 miles

                      1 km  

Answer:

there is no way that is an actual question

Step-by-step explanation:

194728573857275939868385937583957389583898389583958399395

Answer:

The equation –3y = 15 – 4x rewritten in slope-intercept form is  

✔ y = (4/3)x – 5

.

The y-intercept is  

✔ –5

and the slope of the line is  

✔ 4/3

.

Line  

✔ B

is the graph of the line –3y = 15 – 4x.

Line B represents the given linear equation [tex]-3y =15 -4x.[/tex]

Slope intercept form is [tex]y = \frac{4}{3}x-5[/tex]

y-intercept is -5.

Slope of the line is [tex]\frac{4}{3}[/tex].

" Linear equation is defined as the algebraic expression whose highest exponent of the variable is 1."

Formula used

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

Slope intercept form y=mx +c

c = y-intercept

m = slope

According to the question,

Given linear equation,

[tex]-3y = 15-4x[/tex]

Convert the given linear equation in slope intercept form we get,

[tex]y = \frac{4}{3}x-5[/tex]

Compare it with the formula we get,

Slope 'm' = [tex]\frac{4}{3}[/tex]

y-intercept = -5

From the diagram we can have coordinates of line B

[tex]( x_{1} ,y_{1} )= (3,-1)\\\\( x_{2} ,y_{2} )= (0,-5)[/tex]

Substitute the value to get slope of line B,

Slope of line 'B' = [tex]\frac{(-5-(-1))}{0-3}[/tex]

                            [tex]= \frac{-4}{-3} \\\\=\frac{4}{3}[/tex]

From the diagram y-intercept for line B is -5.

Equation of line B

[tex]y = \frac{4}{3}x-5[/tex]

Hence,  slope intercept form is [tex]y = \frac{4}{3}x-5[/tex]. Line B represents the given equation with y-intercept is -5 , Slope of the line is [tex]\frac{4}{3}[/tex].

Learn more about linear equation here

https://brainly.com/question/11897796

#SPJ2

Answer:

The correct answer is A) -19 1/2

Step-by-step explanation:

Answer:

x = 4

Step-by-step explanation:

3 x ( 4x -7 ) = 27

3 x 4x = 12x

3 x -7 = -21

12x -21 = 27

12x -21 + 21 = 27 + 21

12x = 48

12x/12 = 48/12

x = 4

Answer:

[tex]6\frac{3}{16}~,~3\frac{1}{16}[/tex]

Step-by-step explanation:

let the fractions be x and y,then

[tex]x+y=9\frac{1}{4}=\frac{37}{4}=\frac{74}{8}\\x-y=3\frac{1}{8}=\frac{25}{8}\\adding\\2x=\frac{74}{8}+\frac{25}{8}=\frac{99}{8}\\x=\frac{99}{16}=6\frac{3}{16}\\again ~subtracting\\2y=\frac{74}{8}-\frac{25}{8}=\frac{49}{8}\\y=\frac{49}{16}=3\frac{1}{16}\\[/tex]

Answer:

Step-by-step explanation:

2x + 1 + 7x= -8

~2x + 7x = 9x

9x + 1 = -8

move 1 to the other side

9x = -1 -8

9x = -9

divide

X = -1

Answer:

Step-by-step explanation:

Simplifying

2x + -1 = 7x + -8

Reorder the terms:

-1 + 2x = 7x + -8

Reorder the terms:

-1 + 2x = -8 + 7x

Solving

-1 + 2x = -8 + 7x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-7x' to each side of the equation.

-1 + 2x + -7x = -8 + 7x + -7x

Combine like terms: 2x + -7x = -5x

-1 + -5x = -8 + 7x + -7x

Combine like terms: 7x + -7x = 0

-1 + -5x = -8 + 0

-1 + -5x = -8

Add '1' to each side of the equation.

-1 + 1 + -5x = -8 + 1

Combine like terms: -1 + 1 = 0

0 + -5x = -8 + 1

-5x = -8 + 1

Combine like terms: -8 + 1 = -7

-5x = -7

Divide each side by '-5'.

x = 1.4

Simplifying

x = 1.4

Answer:

24 songs

Step-by-step explanation:

I hope this helps!