A store had 5 packs of paper for $7.80. How much would it cost if you were to buy 3 packs

$1.56
$2.19
$7.80
$4.68

Answer:

The independent variable, x, represents the length of one side of the square, and the dependent variable is the the area of the square, because the the area of the square depends on the length of one side of the square.

A function relating these variables is D(x) = x^2.

So D(6) =36, meaning if 6 is the length of one side then 36 would be the area of the square.

Step-by-step explanation:

The question clearly stated that the area depends on the side length, making the side length the independent variable.

The formula for the area of a square is the side length squared.

Have a good day :)

The relationship between them is the formula for the area of a square is the side length squared.

The area of a square can be calculated as the square of the sides of a given figure.

The area of a square = side x side

The independent variable x is represents the length of one side of the square, and the dependent variable is the the area of the square, because the the area of the square depends on the length of one side of the square.

A function relating these variables is D(x) = x^2.

D(6) =36, meaning if 6 is the length of one side then 36 would be the area of the square.

It is stated that the area depends on the side length, making the side length the independent variable.

Therefore, The formula for the area of a square is the side length squared.

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Answer:

-4

Step-by-step explanation:

first remove the parentheses

5-4-7+2

then calculate the sum or difference

-4

Answer:

A - eight feet

Step-by-step explanation:

20 character rule can be dumb sometimes

The Pythagoras is the sum of the square of two sides is equal to the square of the longest side. The height of the house is 12 feet, then the correct option is B.

It is a type of triangle in which one angle is 90 degrees and it follows the Pythagoras theorem and we can use the trigonometry function.

Miguel places his 13-foot ladder 5 feet from the edge of his house.

Then the height of the house is given by the Pythagoras theorem.

P² = H² - B²

P² = 13² - 5²

P² = 169 - 25

P² = 144

P = 12

Then the height of the house is 12 feet.

More about the right-angle triangle link is given below.

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Answer:

20x+45x+50 = 180

65x= 130

x = 2

so,

A = 20x = 20×2 = 40

hope u got it.

Answer:

140

Step-by-step explanation:

Answer:

It would be 140!

Step-by-step explanation:

70% Of 200 = 140!

Answer:

See below

Step-by-step explanation:

Number of oak trees

[tex] = \frac{25}{100} \times 25 \\ [/tex]

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Work Shown:

Plug in (x,y) = (3,0)

ax - 8y = 15

a(3) - 8y = 15 .... replace x with 3

3a - 8(0) = 15 ... replace y with 0

3a - 0 = 15

3a = 15

a = 15/3

a = 5

The equation updates to 3x - 8y = 15.

Answer:

b 5ft

Step-by-step explanation:

Answer:

y = 2/5x - 3

Step-by-step explanation:

First, we have to know what the slope is. Being perpendicular to -5/2, the slope becomes 2/5.

Then, you substitute the slope and given point into the equation to find the y-intercept.

y = 2/5x + b

(-5) = 2/5(-5) + b

(-5) = (-2) + b

b = -3

So, the equation is

y = 2/5x - 3

The equation of the line perpendicular to y = -5/2x + 1 that passes through the point (-5, -5) is y = 2/5x - 3.

We have the Equation,

y= -5/2x + 1

Here, the slope is -5/2.

Since perpendicular line have negative reciprocal of the slope of the given line.

So, the slope of the line perpendicular is 2/5.

Using point-slope form of the equation to find the equation of the perpendicular line.

The point-slope form is given by:

y - y1 = m(x - x1)

Using the point (-5, -5) and the slope 2/5,

y - (-5) = 2/5(x - (-5))

y + 5 = 2/5(x + 5)

y + 5 = 2/5x + 2

y = 2/5x - 3

Therefore, the equation of the line perpendicular to y = -5/2x + 1 that passes through the point (-5, -5) is y = 2/5x - 3.

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Answer:

2 ( 3m -10) (3m+10)

Step-by-step explanation:

18m^2-200

Factor out 2

2 ( 9m^2 -100)

We recognize that this is the difference of squares ( a^2 -b^2) = (a-b)(a+b)

2 ( ( 3m)^2 - 10^2)

2 ( 3m -10) (3m+10)

Answer g(x)=x2 + 2

Step-by-step explanation:

Answer:

x^2 - 9 = 0

Step-by-step explanation:

it is best to use square root method when there is no b value. in this equation, there is no b, only an a and c

Answer:

x intercept-25; y intercept is 15

Answer: If you have solved to get x=6 just plug that back into the problem. You get 50

Step-by-step explanation:

Answer:

[tex]x = 6[/tex]

[tex]AB = 50[/tex]

Step-by-step explanation:

Since [tex]B[/tex] is the midpoint of [tex]\overline A \overline C[/tex], [tex]AB[/tex] and [tex]BC[/tex] are equal in length.

[tex]AB=BC[/tex]

[tex]4x+26 = 6x+14[/tex]

[tex]12=2x[/tex]

[tex]x=6[/tex]

To find the length of [tex]AB[/tex], we can use substitution:

[tex]AB=4x+26[/tex]

[tex]=4(6)+26[/tex]

[tex]=50[/tex]

∴[tex]AB = 50[/tex]

Hope this helps

Answer:

y = 0.6x – 4  

or

y =   3/5x -4

Step-by-step explanation:

Answer:

4.123

Step-by-step explanation:

Just have to think what times itself = 17 and I thought well Istill close to 4 and then I just did the work

also PLZ MARK ME BRAINLIEST

Answer:

use photomath it'll you all

Answer:

[tex]m=\frac{3}{2}[/tex]

General Formulas and Concepts:

Pre-Algebra

Algebra I

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (2, -1)

Point (0, -4)

Step 2: Find slope m

Answer:

98

Step-by-step explanation:

with the rule "corresponding angles are equal" it means that "d" and "f" are equal.

and since "f" is on the other side of 82, on a straight line, you can calculate "f".

82 and "f" would have to add up to 180' since they are on a straight line.

So you do 180 - 81 = f

and get 98.

and since "f = d"

d = 98 degrees

Answer:

The second lucia’s claim is correct since any rotation that are multiple of 45 carry a square onto itself.

Step-by-step explanation:

Answer:

Lucian claim is incorrect because not all rotations that are multiples of 45 degrees carry a square onto itself

Step-by-step explanation:

90 degrees carries a square into itself and it IS a multiple if 45. But 45 degrees cannot carry a square into itself.

Answer:

17

Step-by-step explanation:

Use the Pythagorean Theorem, [tex]a^{2} +b^{2} =c^{2}[/tex]

In this situation, you would use the equation as [tex]8^{2} +15^{2} =x^{2}[/tex]

Answer:

I thought ik but i dont good luck!

Step-by-step explanation:

Answer:

∠ ABC = 55°

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

∠ ABD is an exterior angle of the triangle , then

6x + 5 = x + 45 + 3x

6x + 5 = 4x + 45 ( subtract 4x from both sides )

2x + 5 = 45 ( subtract 5 from both sides )

2x = 40 ( divide both sides by 2 )

x = 20

Then

∠ ABD = 6x + 5 = 6(20) + 5 = 120 + 5 = 125°

∠ ABD and ∠ ABC are adjacent angles and are supplementary, thus

∠ ABC = 180° - ∠ ABD = 180° - 125° = 55°

Answer:

-1

Step-by-step explanation:

i added all of the and that got me the answer

BRAINLIEST PLEASE

Answer:

6x-7

Step-by-step explanation:

Is that the answer you are looking for?

Answer:

I think the answer is 169

Answer:

16ft.

Step-by-step explanation:

4+6+9=16ft

Note:

hope this helps u out :)

Also please mark brainliest

Answer:

It is proportional

Step-by-step explanation:

The pool is being filled at a constant rate.

Answer:

$21 x 30 = 630 (630 the answer)

Step-by-step explanation: