What is the slope intercept form of the equation of the line passing through (1,2) and (3,10).

Answers

Answer 1

Answer:

y = 4x - 2

Step-by-step explanation:

slope = (10 - 2)/(3 - 1) = 8/2 = 4

Let the equation be y = 4x + b

Sub (1, 2) into it,

2 = 4*1 + b

so b = 2 - 4 = -2

The equation is y = 4x - 2


Related Questions

A tree is 39.6 feet tall. What is its height in meters? Use the following conversion: 1 meter is 3.3 feet

Answers

Answer:

12 m

Step-by-step explanation:

If 1 m = 3.3 feet, then,

1 feet = 1/3.3 m

So,

39.6 feet

= 39.6/3.3

Multiplying by 10....

= 396/33

= 12 m

Hope it helps ⚜

Find 2 equivalent expressions 6a + 3 3(2a+1) 6a

Answers

Answer:

6a +6a +3 + 6a

12a +3 +6a

18a +3

A tractor-trailer travels 205.296 miles in 3.12 hours . What is the speed at which the tractor-trailer in traveling?

Answers

Answer:

i think 66.5 miles per hour

Step-by-step explanation:

Answer:

205.295 miles divided by 3.12 hours = 65.8 miles per hour

Step-by-step explanation:

Please help! Tell me which color and if you can please explain.

Answers

Answer:

Yellow

Step-by-step explanation:

y= -f(x) reflects over the x-axis which is what this graph shows. When you complete the factor of

-(x+3)(x-1)

Use the FOIL method to solve

(First, Outer, Inner, last) This will equal to the

y= -x^2-2x+3 as shown in the yellow box

the pdf format of your answer. Note: Any format different from pdf would not be graded and do not send your response to my email. Questions Answers 1. Two balls are drawn from a bag containing 3 red, 3 green and 4 black balls. Find the probability that : (a) both are red, (b) one is green and one is black, (c) both are of the same colour. (a) (b) (c) 2. Four cards are drawn from a pack of 52 cards. Determine the probability that (a) all are aces, (b) they are A, K, Q, J (c) they are of the same suit. (a) (b) (c) 3. In a class of 45 students, 25 students failed Maths, 20 students failed Physics, and 10 students failed both subjects. A student is selected at random. (a) If he failed Physics, find the probability that he failed in Maths. (b) If he failed Maths, find the probability that he failed in Physics. (c) Find the probability that he failed in Maths or Physics, but not both.

Answers

Answer:

a: 3/10 + 3/10 =6/10

b: 3/10 + 4/10 = 7/10

c:

What is the total surface area of this triangular prism?

Answers

Given :

A triangular prism .

To Find :-

The total surface area of the prism .

Solution :-

From the given figure we can see that the prism is made up of

2 triangular surfaces .3 rectangular surfaces .

And the base and height of each triangle is ,

base = 7 inch height = 5 inch

And the dimensions of each rectangle is ,

length = 13 inchbreadth = 6.1 inch

Therefore , the Total surface area is ,

→ TSA = 2( area of each ∆) +3(area of each rectangle)

→ TSA = 2 ( 1/2 * 7 * 5)in.² + 3(13*6.1) in.²

→ TSA = 2 * 35/2 in.² + 3* 79.3 in.²

→ TSA = 35 in.² + 237.9 in.²

TSA = 272.9 273 in.²

Hence the TSA of prism is 273 in.² .

I hope this helps.

Solve Polynomials for 9 and 10

Answers

Answer:

See below.

Step-by-step explanation:

(4x^2-3x^3)+(2x^2+4x^3)

6x^2-x^3

(-8x^2-2x+7)+(x^2-3x+2)

-7x^2-5x+9

-hope it helps

Please answer! I really need help quick

Answers

Every 30 min the tank fills up to 40 gallons

Please help me whoever gets the answer right first will get brainliest

Answers

Answer:I believe its this

Step-by-step explanation:

you can see the step by step in the attached image as well as the result

What is the solution to the equation below?
square root 2x/ square root x - 2 = 2

Answers

Answer:

[tex]x= 4[/tex]

Step-by-step explanation:

[tex]\frac{\sqrt{2x}}{\sqrt{x-2}\:}=2[/tex]                       [ bring √(x - 2) to the opposite side ]

[tex]\sqrt{2x} = 2\sqrt{x-2}[/tex]          

[tex](\sqrt{2x} )^{2} = (2\sqrt{x-2})^2[/tex]      [ square both sides ]

[tex]2x = 4(x-2)[/tex]  

[tex]2x=4x-8[/tex]

[tex]2x - 4x = -8[/tex]

[tex]-2x = -8[/tex]

[tex]x= 4[/tex]

Answer:

x=4

Step-by-step explanation:

[tex]\dfrac{\sqrt{2x} }{\sqrt{x-2}}=2[/tex]

Multiply both sides by [tex]\sqrt{x-2}[/tex] :

[tex]\implies \sqrt{2x}=2\sqrt{x-2}[/tex]

Square both sides:

[tex]\implies 2x=4(x-2)\\\\\implies 2x=4x-8[/tex]

Add 8 to both sides:

[tex]\implies 2x+8=4x[/tex]

Subtract [tex]2x[/tex] from both sides:

[tex]\implies 8=2x[/tex]

Divide both sides by 4:

[tex]\implies x=4[/tex]

PLEASE HELP ME QUICKKK, FIRST CORRECT PERSON GETS BRAINLIEST​

Answers

C.) is the best answer others are less then 50%.

C.) $35 is $15 more then 20 this is over 50%

Please like if helpful!
I think c since half of 20 is 10 and if you add that to 20 it’ll be thirty and since it’s less than 35, it means greater than 50%

I NEED HELPP PLZ Which equation best represents the relationship shown in this graph?

y=−12x


y=−2x


y=12x


y = 2x

Answers

Answer:

y = 2x

the formula for linear equations are y = mx+c,

where m is the gradient,

and c is the y-intercept

to find m (the gradient):

1. pick to points on the graph (eg. -2,-4 and 2,4)

2 substitute the values into the formula for gradient y2-y1/x2-x1.

m = y2-y1/x1-x2

= -4 -4/-2-2

= -8/-4

= 2

to find c (y-intercept):

- the y-intercept is where the graph cuts the y axis

- in this graph, the y-intercept is 0

hence,

c = 0

substitute m = 2 and c = 0 to y = mx+c,

y = 2x + 0

y = 2x

hence, the equation that best represents the relationship shown in the graph is y = 2x.

Determine the mean for the set of data.
23, 30, 26, 25, 21

Answers

Answer:

25

Step-by-step explanation:

To find the mean, sum up the five data points and divide this sum by 5:

125

----- = 25

  5

The mean is 25.

PLS ANSWER AS SOON AS POSSIBLE

Answers

Step-by-step explanation:

[tex](x + y) {}^{2} - 1[/tex]

[tex](x + y - 1)(x + y + 1)[/tex]

Convert 39/50 to a decimal and a percent.

Answers

Answer:

here's your answer hope it helps.

Step-by-step explanation:

1. decimal:

39/50=0.78

2. percentage:

39/50=78%

9/50 to a decimal is 0.78 and a percent is 78%.

To convert fraction into decimal, divide the top of the fraction by the bottom number (39/50) here 39 is the top of the fraction and 50 is bottom of the fraction.

39/50 = 0.78

To convert fraction into percent, divide the top of the fraction by the bottom number then multiple the result by 100 here 39 is the top of the fraction and 50 is bottom of the fraction then multiple the result(0.78) by 100.

39/50 = 0.78 * 100 = 78.

Therefore, 39/50 to a decimal is  0.78 and a percent is 78%.

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please help me i give you 30 points
x - 6 ( if x = 6)

Answers

Answer:

x - 6 = 0

Step-by-step explanation:

x - 6 = ?

If x = 6, then

6 - 6 = 0

The scatter plot shows the number of minutes people had to wait for service at a restaurant and the number of staff available at the time.

A line that models the data is given by the equation $$, where $$ represents the wait time, and represents the number of staff available.

The slope of the line is -1.62. What does this mean in this situation?
the time you have to wait per staff number.
Is a slope of 1.62 realistic in this context?
no because it is not a coordinate and there isn't any decimals in the wait time
The $$-intercept is $$. What does this mean in this situation?
it means there's more waiting time
Is a $$-intercept of $$ realistic in this context?
no because when you try to find it it goes off the graph and isnt calculable.

Answers

The slope of a linear regression is the rate of change of the line of the best fit

The interpretation of the slope is that the wait time per staff is 1.62 minutesThe slope value is realistic

The linear regression is given as:

y = -1.62x + 18

Where

y represents the wait timex represents the number of staff

Using the above representations, the slope means that the wait time per staff is 1.62 minutes

Also, the slope value is realistic because time can be measured in decimals

Read more about linear regressions at:

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CAN SOMEONE HELP ME PLEASEREE

Answers

it’s a) 51

51
+49
———
100

Answer:

a) 52

Step-by-step

49+52=101

which makes the equation true

101>100

51 will make it equal

53 and 54 its more than 52 that meants it wont be  the smallest whole number

The solution set of the inequality 2x - y> 2 consists of all the points_?_ the line?
above; y = 2x - 2
below, y = 2x - 2
above; y = -2x + 2
below; y = -2x + 2

Answers

Answer:

The answer is below, y = 2x - 2

Step-by-step explanation:

2x - y > 2

-2x       -2x

-y > 2 - 2x

/-1     / -1

y < -2 + 2x, also written as y < 2x - 2

This is where we got our answer: y = 2x - 2

*There is an invisible 1 before the variable (y)*

*When dividing an inequality with a negative number, the sign flips (from < to >, or from ≤ to ≥)*

I'm going to share a little tip:

< or ≤ = below the line

> or ≥ = above the line

Hope that helps

Find The Value Of x
[tex] \sf \: 5x = 25[/tex]




Thank You! :)​

Answers

[tex] \sf \: 5x = 25[/tex]

[tex] \: \: \: [/tex]

[tex] \sf \: x = \frac{25}{5} [/tex]

[tex] \: \: \: [/tex]

[tex]x = \cancel\frac{25}{5} [/tex]

[tex] \: \: \: [/tex]

[tex] \boxed{ \sf \orange{x = 5}}[/tex]

The Value Of x Is 5.

Hope Helps~

Answer:

x = 5

Step-by-step explanation:

5x = 25

x = 25/5

x = 5

Hope it helps ⚜

A coordinate plane with a line passing through the points (negative 4, negative 5) and (1, negative 1).
Write an equation in standard form of the line that is graphed. Then find the x- and y-intercepts.

The equation of the line in standard form is
.

The x-intercept is
.

The y-intercept is
.

Answers

Answer:

0.8x - y = -1.8, x-int = 2.25, y-int = -1.8

Step-by-step explanation:

(-4, -5) and (1, -1)

slope = [(-5) - (-1)] / [(-4) - 1] = -4 / -5 = 4/5 = 0.8

Let y = 0.8 x + b

Sub (-4, -5) into it

-5 = 0.8 * (-4) + b = -3.2 + b

b = -5 + 3.2 = -1.8

The equation is y = 0.8x - 1.8

standard form: 0.8x - y = -1.8

let y = 0, 0.8x - 1.8 = 0

x = 1.8/0.8 = 2.25   (x-intercept)

let x = 0, y = -1.8    (y-intercept)

x-2y=4 solve for y in standard form

Answers

Rearranging the question,

SOLVE FOR Y IN TERMS OF X:

x - 2y = 4

Move 2y to the other side

x=2y+4

Move 4 to the other side and flip the equation

2y=x-4

Divide both sides by two:

y=1/2x-2

-Hunter

Answer:

y = 1/2x - 2

(You need to rearrange x-2y=4)

Sandeep visited Green Glen Apple Orchard yesterday. He picked a basket of fresh apples in the field. He also got 3 pounds of pre-picked apples at the farm stand because they were overripe and perfect for making applesauce. The farm charges $4 a pound for apples, regardless of whether they're fresh or pre-picked. Sandeep paid $30 in all

Answers

Answer:

4.5 pounds of fresh apples

Step-by-step explanation:

Total weight of apples:

30/4 = 7.5 pounds

The weight of fresh apples:

7.5 - 3 = 4.5 pounds

Total Weight of Apples

[tex] \frac{30}{4}=7.5pounds [/tex]

Weight of Fresh Apples

[tex]7.5 - 3 = 3.5pounds[/tex]

Hope it helps youuuu :)

— llAdill

What does 0= -12 mean regarding the solution to the system?

Answers

Answer:

There are no solutions to the system because the equations represent parallel lines.

Step-by-step explanation:

Answer:

What does 0 = −12 mean regarding the solution to the system? There are no solutions to the system because the equations represent parallel lines.

Section 8.1 Introduction to the Laplace Transforms

Problem 2.
Use the table of Laplace transforms to find the Laplace transforms of the following functions.
[tex](a)cosh \: t \: sin \: t[/tex]
[tex](b) {sin}^{2} t[/tex]
[tex](c) {cos}^{2} 2t[/tex]
[tex](d) {cosh}^{2} t[/tex]
[tex](e)t \: sinh \: 2t[/tex]
[tex](f)sin \: t \: cos \: t[/tex]
[tex](g)sin(t + \frac{\pi}{4} )[/tex]
[tex](h)cos2t - cos3t[/tex]
[tex](i)sin2t + cos4t[/tex]

Answers

I don't know what table you have as reference, but I suspect it includes the following transforms:

[tex]1 \leftrightarrow \dfrac1s[/tex]

[tex]e^{at} \leftrightarrow \dfrac{1}{s-a}[/tex]

[tex]\cos(at) \leftrightarrow \dfrac{s}{s^2+a^2}[/tex]

[tex]\sin(at) \leftrightarrow \dfrac{a}{s^2+a^2}[/tex]

[tex]\cosh(at) \leftrigharrow \dfrac{s}{s^2-a^2}[/tex]

[tex]\sinh(at) \leftrigharrow \dfrac{a}{s^2-a^2}[/tex]

It probably also includes some more general properties, like

[tex]t f(t) \leftrightarrow -F'(s)[/tex]

[tex]e^{at} f(t) \leftrightarrow F(s-a)[/tex]

where F(s) is the Laplace transform of f(t).

Beyond these, you should also know the following identities:

[tex]\cosh(t) = \dfrac{e^t + e^{-t}}2[/tex]

[tex]\cosh^2(t) = \dfrac{1 + \cosh(2t)}2[/tex]

[tex]\cos^2(t) = \dfrac{1 + \cos(2t)}2[/tex]

[tex]\sin^2(t) = \dfrac{1 - \cos(2t)}2[/tex]

[tex]\sin(2t) = 2 \sin(t) \cos(t)[/tex]

[tex]\sin(t \pm T) = \sin(t) \cos(T) \pm \cos(t) \sin(T)[/tex]

Putting everything together, we have

• (a)

[tex]\cosh(t) \sin(t) = \dfrac{e^t + e^{-t}}2 \times \sin(t) = \dfrac12 e^t \sin(t) + \dfrac12 e^{-t} \sin(t)[/tex]

and the Laplace transform is

[tex]\dfrac12 F(s - 1) + \dfrac12 F(s + 1)[/tex]

where F(s) is the transform of sin(t),

[tex]F(s) = \dfrac{1}{s^2 + 1}[/tex]

Then

[tex]\cosh(t) \sin(t) \leftrightarrow \dfrac{\frac1{(s-1)^2+1} + \frac1{(s+1)^2+1}}2 = \boxed{\dfrac{s^2+2}{s^4+4}}[/tex]

• (b)

[tex]\sin^2(t) = \dfrac12 \left(1 - \cos(2t)\right)[/tex]

and the transform is

[tex]F(s) = \dfrac12 \left(\dfrac1s - \dfrac{s}{s^2+4}\right) = \boxed{\dfrac{2}{s^3+4s}}[/tex]

• (c)

[tex]\cos^2(2t) = \dfrac12 \left(1 + \cos(4t)\right)[/tex]

with transform

[tex]F(s) = \dfrac12 \left(\dfrac1s + \dfrac{s}{s^2+16}\right) = \boxed{\dfrac{s^2+8}{s^3+16s}}[/tex]

• (d)

[tex]\cosh^2(t) = \dfrac12 \left(1 + \cosh(2t)\right)[/tex]

with transform

[tex]F(s) = \dfrac12 \left(\dfrac1s + \dfrac{s}{s^2-4}\right) = \boxed{-\dfrac2{s^3-4s}}[/tex]

• (e)

[tex]t\sinh(2t) \leftrightarrow -F'(s)[/tex]

where F(s) is the Laplace transform of sinh(2t),

[tex]F(s) = \dfrac{2}{s^2 - 4} \implies -F'(s) = \boxed{\dfrac{4s}{(s^2-4)^2}}[/tex]

• (f)

[tex]\sin(t) \cos(t) = \dfrac12 \left(2\sin(t) \cos(t)\right) = \dfrac12 \sin(2t)[/tex]

with transform

[tex]F(s) = \dfrac12 \times \dfrac{2}{s^2+4} = \boxed{\dfrac1{s^2+4}}[/tex]

• (g)

[tex]\sin\left(t+\dfrac\pi4\right) = \sin(t) \cos\left(\dfrac\pi4\right) + \cos(t) \sin\left(\dfrac\pi4\right) = \dfrac1{\sqrt2} \left(\sin(t) + \cos(t)\right)[/tex]

with transform

[tex]F(s) = \dfrac1{\sqrt2} \left(\dfrac1{s^2+1} + \dfrac{s}{s^2+1}\right) = \boxed{\dfrac{s+1}{\sqrt2 (s^2+1)}}[/tex]

The last two are trivial and follow directly from the properties listed above.

• (h)

[tex]\cos(2t) - \cos(3t) \leftrightarrow \dfrac{s}{s^2+4} - \dfrac{s}{s^2+9} = \boxed{\dfrac{5s}{s^4 + 13s^2 + 36}}[/tex]

• (i)

[tex]\sin(2t) + \cos(4t) \leftrightarrow \dfrac2{s^2+4} + \dfrac{s}{s^2+16} = \boxed{\dfrac{s^3+2s^2+4s+32}{s^4+20s^2+64}}[/tex]

What is the area of this triangle?

150 cm²

210 cm²

315 cm²

420 cm²

Answers

Answer:

[tex]area = \frac{1}{2} (base)(height) \\ area = \frac{1}{2} (35cm)(12cm) \\ area = \frac{1}{2} (420 {cm}^{2} ) \\ area = 210 \: {cm}^{2} [/tex]

The area of the triangle with height 12 cm and base 35 cm is A = 210 cm²

What is a Triangle?

A triangle is a plane figure or polygon with three sides and three angles.

A Triangle has three vertices and the sum of the interior angles add up to 180°

Let the Triangle be ΔABC , such that

∠A + ∠B + ∠C = 180°

The area of the triangle = ( 1/2 ) x Length x Base

For a right angle triangle

From the Pythagoras Theorem , The hypotenuse² = base² + height²

if a² + b² = c² , it is a right triangle

if a² + b² < c² , it is an obtuse triangle

if a² + b² > c² , it is an acute triangle

Given data ,

Let the triangle be represented as ΔABC

Now , the base of the triangle is AB = 35 cm

The height of the triangle is BC = 12 cm

And , the area of the triangle = ( 1/2 ) x Length x Base

On simplifying , we get

Area of the triangle A = ( 1/2 ) x 12 x 35

Area of the triangle A = ( 6 x 35 )

Area of the triangle A = 210 cm²

Hence , the area of the triangle is 210 cm²

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A building casts a shadow that is 55 feet long. At the same time, a woman standing nearby who is 5 feet 3 inches tall casts a shadow that is 45 inches long. How tall is the building to the nearest foot?

Answers

Answer:

77ft ?

Step-by-step explanation:

David throws a bucket with an initial speed of 2 meters per second into a well that is 30 meters deep. When will the bucket hit the bottom of the well?


A. About 2.69 seconds
B. About 30 seconds
C. About 3.82 seconds
D. About 4.21 seconds


Answer: A

Answers

Applying the expression for speed, we found that the time taken for the bucket to hit the bottom of the well is 15 seconds

Speed, Distance, Time

Given Data

Speed = 2 meters per second

Distance = 30 meters

Time = ??

We know that the expression for the relationship between speed, distance and time is given as

Speed = Distance/Time

substituting we have

2 = 30/t

cross  multiplying

2t = 30

divide both sides by 2

t = 30/2

t = 15 seconds

Answer 15 seconds

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kali runs 10 laps around a track each day. Each lap around the track is 400 meters. How many will it take kali to run a total of 12 kilometers?

Answers

Answer:

3 days

Step-by-step explanation:

Kali runs 10 laps around a track each day, and each lap is 400 meters. So, the first step would be:

10 • 400 = 4,000

That means Kali runs 4,000 meters each day.

Now, there are 1,000 meters in 1 kilometer. This means he runs 4 kilometers each day, and we're trying to get to 12 kilometers.

The final step is to divide. 12/4 = 3

So, it would take 3 days for him to run a total of 12 kilometers.

Answer:

Kali will run 3 days

Step-by-step explanation: took quiz

The sum of two numbers is 11. The first number plus triple the second is 25. Find these two
numbers.

Answers

Answer:

4 + 7 = 11

4 + 7(3) = 25

4 + 21 = 25

first number is 4, second is 7

I hope this helped!

Step-by-step explanation:

Other Questions
Two right triangles are proportional. The shortest leg of the small triangle is 4 in and the hypotenuse is 12 in. The shortestleg of the large triangle 8 in. Find the length of the hypotenuse of the large triangle.A.12B.21C.20D.24 sob sob... please help lol Identify the shapes, using the names studied in this lesson GIVING BRAINLIEST FOR BEST ANSWER!Solve five and two thirds times three fourths.A) Three and eleven twelfthsB) Four and one twelfthC) Four and three twelfthsD) Five and one twelfth in the taiga biome, one of the major human impacts has been_____A-fire prevention B-Deforestation C-water pollution D-oil drilling i need help yall ill mark brainliest :) Amani and Danielle are buying hair spray. They can buy 4 bottles of Rave and 5 bottles of Max for $30.00, orthey can by 1 bottle of Rave and 1 bottle of Max for $6.50. If r is the cost of a bottle of Rave and m is the costFa bottle of Max, how much does each bottle of hair spray cost? Who has implied power? The national or state government? A saleswoman earns 30% commission on all the merchandise that she sells. Last month she sold $700 worth of merchandise. How much commission (in dollars) did she earn last month? two examples of advocacy campaigns and how it raises awareness Noise pollution can be harmful to wildlife in protected areas. What evidencefrom the text supports this conclusion?A The number of flights over the Grand Canyon has increased, with soundlevels in spots reaching as high as 76 decibels.BThe noises humans make has raised the noise levels in two-thirds ofprotected areas in the U.S. Natural sounds like birds warbling and the wind rustling in the trees canhave benefits for humans.D Noise pollution can muffle the sound of calls among wild birds, hinderingtheir ability to hunt for food. What idea that is important today came from ancient athens?. (PLS HELP I REALLY NEED HELP FAST! IM ALMOST OUT OF TIME GIVING BRAIN)Which statement best states how empire-building helped establish Japan as a global powerO Japan's expansion into Manchuria and influence in East Asia were significantO Japan's influence in China and its expansion into Russia were significantThe Qing dynasty's defeat showed that Japan was a major military force.O Korea provided Japan with a source of raw materials and trade routes. Can anyone help in this question, thanks The function y = 2 1.5n models the value of a certain stock after n years. What is the recursive formula that models the situation? What type of verb shows actions but DOES NOT have a direct object? A developmental psychologist studies the responses of a newborn. She puts her finger in the baby's fist. The baby grasps it. Then she strokes the baby's palm and the baby puts his fist in his mouth and sucks. The psychologist is testing the baby's _____ instincts. Does anyone know how to solve quadratic equations? Brainliest please:6x^2 - 37x + 45 Hi Im looking for my friend have you seen her and does she know this? 4x=y what is x What is the primary purpose of seed dispersal?A) Begin photosynthesis in the seed coatB) Create a new colony of offspring in plantsC) Lure animals away from the parent plantD) Reduce competition with parent plant