Mathematics High School

Y=2x

Y=7x-20

I’ll give you brainlessly

Answers

Answer 1

Answer:

(4,8)

Step-by-step explanation:

y = 2x

y = 7x-20

Step 1: plug in 2x for y

Step 2: subtract 7x on both sides

Step 3: divide by -5 on both sides

Step 4: plug in 4 into y = 2x

2x = 7x -20

-7x      -7x

-5x  = -20

-5         -5

x = 4

y = 2(4)

y = 8

Related Questions

Which point is the outlier on this scatter plot?
Shark Size
y
3
300
Length (cm)
200
100
X
0
0
30
60
90
Mass (kg)
OA (0.07, 18)
O D. (105, 320)
O C. (85220)
O B. (68, 165)

Answers

The answer to this problem is A

Answer: A (0.07, 18)

Step-by-step explanation:  An outlier is a value that is far from the central tendencies around what would be the mean and the median values.

In a scatter plot, it's the dots (coordinates) that are far away from the main cluster.

if dy/dx = x(y-1), find the equation of the tangent line at x=-2 with f(-2)=3

Answers

Answer:

The equation of the tangent line passing through the point (-2,3) is

 4 x + y +5 =0

Step-by-step explanation:

Step(i):-

Given that the slope of the tangent

             [tex]m = \frac{dy}{dx} = x(y-1)[/tex]

             m = -2( 3-1) = -4

Given point x = -2

         y = f(-2) =3

∴The given point ( x₁ , y₁) = ( -2 ,3)

Step(ii):-

The equation of the tangent line passing through the point (-2,3)

[tex]y - y_{1} = m(x-x_{1} )[/tex]

[tex]y -3 = -4(x-(-2))[/tex]

y -3 = -4( x+2)

y-3 = -4x -8

4x + y -3+8=0

4x +y +5=0

Step(iii):-

The equation of the tangent line passing through the point (-2,3) is

  4 x + y +5 =0

A system of equations is shown below. y = -5x - 2 y=3x - 4 What is the solution to the system of equations?​

Answers

Answer:

the answer is (x,y) (1/4 -13/4)

A new car is purchased for $40,000 and over time its value depreciates by one half every 3 years. What is the value of the car 17 years after it was purchased, to the nearest hundred dollars?

Answers

Answer:

Value  of the car after depreciation = $800.

Step-by-step explanation:

Formula to get the final value of the car after depreciation of the car price,

Final value = [tex]\text{Initial value}(1-\frac{r}{100})^{\frac{t}{n} }[/tex]

Here, t = Number of years after the purchase

n = Number of years for the depreciation of price by half

By substituting values in the formula,

Final value = [tex]40000(1-\frac{50}{100})^{\frac{17}{3}}[/tex]

                  = [tex]40000(0.5)^{\frac{17}{3}}[/tex]

                  = $787.451

                  ≈ $800 [Nearest hundred dollars]

Therefore, after 17 years value of the new car will be $800.

3х - y>2
2х + y>23

solve the system of inequalities ​

Answers

Answer: x is greater than 5

Step-by-step explanation: pls mark brainliest

Can someone help me out please

Answers

B) AAS Congruence Theorem
(correct answer i promise)

explanation:
The Angle Angle Side postulate (often abbreviated as AAS) states that if two angles and the non-included side one triangle are congruent to two angles and the non-included side of another triangle, then these two triangles are congruent.

The afternoon high temperature was 88°F. By midnight, the temperature 1 point
dropped down to 73°F. What is the percent decrease?

Answers

Answer:

17.04545

Step-by-step explanation:

try this

Answer:

17%

Step-by-step explanation:

88 - 73 = 15

15 divided by 88 = 0.170

round to the nearest percent, 17%.

Hope this helps

Find the Inverse Function f(x)=x-5

Answers

Inverse function is f-1(x)= x + 5

Simplify: Write your answer in scientific notation.
(3.3 x 10^7) + (7.7 x 10^8)

Answers

The answer is 8.03x10^8

Which line below is parallel to y = 5x - 6

Answers

Answer:

-30

Step-by-step explanation:

Match each equation with the diagram it represents.....pls help

Answers

Answer:

Oh this is actually pretty easy I think, I hope I get this right! So, Im pretty sure the first one goes to diagram C. The second one goes to diagram D. And I think the third one goes to diagram B. And the last one goes to diagram A. Please dont hate me if I am wrong! Sorry if I am though!

Two trains leave stations 432 miles apart at the same time and travel toward each other. One train travels at 80 miles per hour while the other travels at 100 miles per hour. How long will it take for the two trains to meet?

Answers

Answer:

The trains will meet in 2.4 hours.

Step-by-step explanation:

To cover 432 miles at 180mph: 432mi/180mph=2.4 hours

PLEASE HELP ME ANYONE

Answers

Answer:

30+a

Step-by-step explanation:

hope it helps dont report if wrong

Simply -17 - 4x + 10 + X

Answers

Answer:

-7-3x

Step-by-step explanation:

-17-4x+10+x

(-17+10)+(-4x+x)

-7-3x

Answer:

-3x - 7

I hope this helps!

"Talk all day.........................................."

Answers

Answer:

What? Oh well free points tyy

Step-by-step explanation:

Which three side lengths best describe the triangle in the diagram?

Answers

Answer:

D

Step-by-step explanation:

the hypotenuse is 10 cm one leg is 8 cm and the other leg is 6 cm

Help Help Help .!
repeated multiplication using a negative fraction .

Answers

[tex] {4}^{3} = 63[/tex]

i have this due in like 10 minutes please help!!

Answers

Answer:

1- a

2- b

3- c

4- d

Step-by-step explanation:

For any operation you have to separate the numbers from the unknown quantities (x, y) and then simplify them by solving them with quantities you are familiar with.

Example:

7x + 8 - 6 + 3x

7x + 3x + 8 - 6

you can only solve operations if they are both natural or algebraic numbers

10x + 2

Hope it was helpful ;)

OMg plzzz help due 5 minutes answer whatever u can and real answers plz

Answers

I am srry I don’t understand any of that

Twelve people are
able to ride the Serpent of Fire roller
coaster at one time. Write a function
table that shows the total number of
people that have been on the roller
coaster after 1, 2, 3, and 4 rides.

​

Answers

1,12
2,24
3,36
4,48
Theses are the ordered pairs. To the answer of the question. In the table put (x,y) at the top and then in each x column put the first number then in the y column put the second number

The price of a 9-minute phone call is $2.25. What is the price of a 19-minute phone call?

Answers

Answer:

$4.75

Step-by-step explanation:

9/2.25=19/x

cross product

2.25*19=9*x

42.75=9x

x=42.75/9

x=4.75

The perimeter of a square is 48 cm.
What is the length of the diagonal?

Answers

Answer:

The answers is the following d≈16.97cm

Step-by-step explanation:

Fill in the blanks! Help please this is due at 11:59

Answers

Answer:

1) intensive

2) squemish

3) selfish

4) injection

5) combatiive

6) reject

7) interjection

8) eject

9) impressive

10) projected

Not sure about some of these but hope this can help!!

Step-by-step explanation:

Answer:

1. intensive

2. squmish

3. selfish

4. injection

5. combative

6. reject

7. interjection

8. eject

9. impressive

10. projected

Step-by-step explanation:

x+3y=10 what is the slope of the line

Answers

Answer:

-1/3 is the slope of the line

Step-by-step explanation:

Answer:

[tex]-\frac{1}{3}[/tex]

Step-by-step explanation:

y = mx + b

m is the slope and b is the y-intercept.

Subtract x from both sides of the equation.

x - x + 3y = 10 - x

3y = 10 - x

Divide each term by 3.

[tex]\frac{3y}3y} = \frac{10}{3} + \frac{-x}{3}[/tex]

[tex]y = \frac{-x}{3} + \frac{10}{3}[/tex]

Rewrite in slope intercept form.

[tex]y = -\frac{1}{3}x + \frac{10}{3}[/tex]

How do you write 927,000 in scientific form

Answers

the answer is 9.27 x 10^5

What is the equation of the line that passes through the point (4, 4) and has a slope
of 3?

Answers

Answer:

y = 3x - 8

Step-by-step explanation:

Let me know if I am wrong.

Answer:

y=3x-8

Step-by-step explanation:

I NEED HELP AGAIN 5.0

Answers

Answer:

(-1,-3) (0,-5)

Step-by-step explanation:

Move dot at the origin to (-1,-3) down three and one to the left

Select other dot and move it to (0,-7)

Answers these two for 5 stars and brainlist and a thanks

Answers

a. Dilation of 2nd equation by a factor of 12

b. The systems have the same solution, as dilations do not affect overall coordinates, changing side lengths but not angles

please help! Giving points!

Answers

Answer:

Bee

Step-by-step explanation:

Ya like jazz?

14x + 5y = -6
Slope intercept form

Answers

Answer:

y=-2.8x-1.2

Step-by-step explanation:

5y=-14x-6

y=-14/5x-6/5

y=-2.8x-1.2

The answer is : -14/5x -6/5

Explanation:
5y= -6-14x
y= -6/5 -14/5x

Standard form: -14/5x-6/5
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