How do you write a system of equations with the solution (-1,-1)? NEED HELP WILL MARK BRAINLIEST!!!

Answer:

x^2 - 2x + 4

Step-by-step explanation:

Answer:

3.26

Step-by-step explanation:

Given:

The equations of lines are

[tex]y=\dfrac{4}{5}x+8[/tex]

[tex]20y+25x=180[/tex]

To find:

The relation between two of lines.

Solution:

The slope intercept form of a line is

[tex]y=mx+b[/tex]

Where, m is slope and b is y-intercept.

We have,

[tex]y=\dfrac{4}{5}x+8[/tex]        ...(i)

[tex]20y+25x=180[/tex]          ...(ii)

Equation (i) can be written as

[tex]20y=-25x+180[/tex]

[tex]y=\dfrac{-25x+180}{20}[/tex]

[tex]y=\dfrac{-25x}{20}+\dfrac{180}{20}[/tex]

[tex]y=\dfrac{-5x}{4}+9[/tex]             ...(iii)

On comparing (i) with slope intercept form, we get

[tex]m_1=\dfrac{4}{5}[/tex]

On comparing (iii) with slope intercept form, we get

[tex]m_2=-\dfrac{5}{4}[/tex]

Now,

[tex]m_1\times m_2=\dfrac{4}{5}\times (-\dfrac{5}{4})[/tex]

[tex]m_1\times m_2=-1[/tex]

The product of slopes of both lines is -1. We know that the product of slopes of two perpendicular lines is -1.

Therefore, the given lines are perpendicular.

Answer:

1.5 $ is the cost of each soup cans

Answer:

32.6193819

Step-by-step explanation:

calulater never lies XD

Answer:

The answer should be: x=2,-12

which on your answer should backwards: {-12,2}

Step-by-step explanation:

Answer:

i thank is is the number 2

Answer:

Im so sorry if this doesn't help

Step-by-step explanation:

Volume = length * width * height

           = 8 1/2  * 5 1/4  *  4

           =  17/2  * 21/4    * 4

            = 1428 / 8

             =357/2

          = 178  1/2  inches cube

got it!

the answer is 67

hope that helped

Answer:

yes because this number is an even

Step-by-step explanation:

Answer: yes

Step-by-step explanation:

2.5875

Step-by-step explanation:

look first the mixture is 4 Apple: 5 cranberry okay and the will make 1:5 littre so you will mince 4:5 from 1:5 and you will get 3:5. 3 for appple.and 5 for the other so you will make the next equations 3×0.45=     . and 5×0.8=   . and you will get the apple price and the second price so you will make new apple price: new  cranberry price=

Answer:

Therefore, Height = 4.8 inches.

Step-by-step explanation:

Given : A triangle whose base is 5 inches and area is 12 square inches.

To find : Find the height of a triangle.

Solution : we have given

Triangle base = 5 inches.

Area = 12 square in.

We need to find height of the triangle.

Area =  * base * height .

Plugging the values .

12 =   * 5 * height .

On multiplying both sides by 2

24 = 5 * height .

On dividing both sides by 5.

Height = 4.8 inches.

Therefore, Height = 4.8 inches.

Answer:

9

Step-by-step explanation:

Given:

The graph of a function.

To find:

The domain on which of the following function is increasing.

Solution:

Domain is the set of x-values or input values.

From the given graph it is clear that the vertex of the given function is at (4,75).

Before the point (4,75) the graph is increasing and after the point (4,75) the graph is decreasing.

The function is defined for [tex]0\leq x\leq 9[/tex].

Since the graph is increasing when [tex]0\leq x\leq 4[/tex], therefore the function is increasing over the interval [0,4].

Therefore, the domain on which of the following function is increasing is [0,4].

After observing the x-axis points the domain of the function n whose curve is shown in the graph is [0, 9].

The domain of a curve on graph paper refers to the set of all x-values for which the curve is defined or exists.

It's the range of x-values that correspond to points on the curve.

So, the domain can be determined by looking at the x-axis and identifying the range of values that the curve.

In the given graph we can see that,

The curve lies between 0 to 9 on the x-axis.

Thus the fucntion is defined in the interval [0, 9]

Hence,

The domain of the given curve of a fucntion is [0, 9].

To learn more about graph of function visit:

https://brainly.com/question/12934295

#SPJ6

Answer:

we don't know the exact value of "a number" so we can assign it the letter value x

so we know that x-8 is less than or equal to 17

you would solve this the same way you would solve any other equation so

x is less than or equal to 25

Answer:

i think u should - 77 from 180 because triangle size is 180 , if so cheack if u have choices for the same aswer u got

Step-by-step explanation:

[tex]\color{plum}\tt\bold{(D) \: 70}[/tex]

Angle 1 and angle 3 are vertically opposite angles.

We know that :

▪︎ Vertically opposite angles are always equal.

Which means :

Angle 1 = Angle 3

Thus, the measure of angle 3 = 70°

▪︎Therefore, the correct option is (D) 70

Answer:

the answer is 43%

Step-by-step explanation:

Answer:

x=12

Step-by-step explanation:

divide 36 by 3. since their both negative, the answer would be positive

Answer:

C or 9, 40, 41

Step-by-step explanation:

Answer:

I think it is 15 sorry if this is wrong

Answer:

second small line to the right of -4 and the second smaller line to the left of 4

Answer: 68 Miles

Work: 8*8.5=68

Answer:

Step-by-step explanation:

square-based pyramid:

volume V = (⅓)b²h

    = (⅓)7²·16  

    ≅ 261.3 ft³

:::::

Can't help with question 3. I haven't learned triangle-based pyramids.

:::::

cone:

volume V = ⅓πr²h

              = ⅓π17²·20

              = 6052.8 yd³

:::::

can't help with question 7. Never did this kind of pyramid.

Answer:

prove you are responisble and you will take ggod care of it

Step-by-step explanation:

Here are some ways to show your family that you're ready for a horse:

1.) Plan out a daily routine.

2.) Show them how you plan to implement that routine.

3.) Prove to your parents that you're responsible.

4.) Do your research.

5.) Figure out a way to help with the expenses that come with horse ownership.

6.) Talk up the pros of owning a horse.