Write an equation that passes through the given points and is perpendicular to the line , (-3,1); y=-5x+2, write it in slope-intercept form pls.

Answers

Answer 1

The equation of the line that passes through point (-3,1) and perpendicular to y=-5x+2 is y = (1/5)x + 8/5.

What is the equation of line that passes through the given points and is perpendicular to the given line?

Given the data in the question;

Equation of line: y = -5x + 2Point: (-3,1)

First we determine the slope of the initial line using the slope intercept-form. y = mx + b

y = -5x + 2

Compared with the slope intercept form,

Slope m = -5

Now, for the equation of line perpendicular to the initial line, its slope must be a negative reciprocal of the initial slope.

Hence, slope of the perpendicular line is;

Slope m = -1/(-5) = 1/5

To find the equation of the perpendicular line, we use the point slope formula.

y - y₁ = m( x - x₁ )

Plug in the slope m ( 1/5) and point (-3,1).

y - 1 = (1/5)( x - (-3) )

y - 1 = (1/5)( x + 3 )

Convert to slope-intercept form.

y - 1 = (1/5)( x + 3 )

y - 1 = x/5 + 3/5

y = x/5 + 3/5 + 1

y = x/5 + 3/5 + 1

y = x/5 + 8/5

y = (1/5)x + 8/5

Therefore, the equation of the perpendicular line is y = (1/5)x + 8/5.

Learn more about  equation of line here: brainly.com/question/2564656

#SPJ1


Related Questions

The figure shows rectangle RSTW. Which of the following conditions satisfies the criteria for rectangles?
i cant upload image
a. m∠SRZ = 40°


b. m∠STZ = 40°


c. m∠SRW = 80°


d. m∠TWR = 80

Answers

The condition that satisfies the criteria for rectangles is

m∠SRZ=40°. Option A

This is further explained below.

What is the condition?

Generally, The diagram illustrates the rectangle RSTW, which contains the angle RTW with a measurement of forty degrees.

1. The sides SR and TW are perpendicular to one another as opposed sides of the rectangle. Next, the angles SRZ and RTW are alternative inner angles. The alternative inner angles theorem states that because they are congruent, mSRZ must equal 40 degrees. This option should be selected.

2. The angles STZ and RTW are complimentary to one another (they sum up to 90 degrees), and then

m∠STZ=90°-40°=50°. This choice is not a valid option.

3. The SRW angle represents a right angle (in a rectangle all angles are right angles). According to the textbook definition of a right angle,

m∠SRW=90°. This choice is not a valid option.

4. Angle TWR is a right angle (in a rectangle all angles are right angles). According to the textbook definition of a right angle,

m∠TWR=90°. This choice is not a valid option.

Read more about rectangles

https://brainly.com/question/15019502

#SPJ1

CQ attached

Use the marginal tax rate chart to answer the question.

Determine the amount of taxes owed on a taxable income of $49,652.
•$4,735.38
•$6,600.44
•$7,709.92
•$10,293.44

Answers

The  amount of taxes owed on a taxable income of $49,652 is 10,293.44.

what is Marginal tax rate?

The amount of additional tax paid for each new dollar of income received is known as the marginal tax rate. Total taxes paid divided by total income earned is the average tax rate. With a marginal tax rate of 10%, tax would be deducted from the following dollar of income at a rate of 10%.

For instance, if a person has a taxable income of $24,750, they will pay taxes on the first $19,900 of that income at a rate of 10%, and on the remaining $5,000 at a rate of 12%.

Given:

Income= $49652

The above amount lies in the range of 41176- 89075 which has tax rate pf 22%.

So, the amount of taxes

= 49652 x 22%

=49652 x 22/100

= 49652 x 0.22

= 10,293.44

Hence, the amount of taxes owed on a taxable income of $49,652 is 10,293.44.

Learn more about marginal tax rate here:

https://brainly.com/question/12395856

#SPJ1

Answer:

$6,600.44

Step-by-step explanation:

$49,652 falls into the 22% bracket.

Basically you take the taxable amount from each bracket and then multiply each by the corresponding marginal tax rate.

Then we take the income $49,652 and subtract it by the maximum of the last tax bracket which would be $41,175.

$49,652 - $41,175 = $8,477.

Multiply this by 22% = 1,864.94 then add the other brackets' taxes owed which should total to $6,600.44

simplify the expression -1/2 + 1/6

Answers

The solution to the fraction -1/2 + 1/6 is -1/3

How to simplify the expression?

The expression is given as

-1/2 + 1/6

Rewrite the terms of the expression as equivalent fractions

So, we have the following equation

-1/2 + 1/6 = -3/6 + 1/6

Take the LCM of the equation

So, we have the following equation

-1/2 + 1/6 = (-3 + 1)/6

Evaluate the sum

So, we have the following equation

-1/2 + 1/6 = -2/6

Simplify the quotient

-1/2 + 1/6 = -1/3

Hence, the value of the fraction is -1/3

Read more about fractions at

https://brainly.com/question/1622425

#SPJ1

(1 + 2)3 ÷ (2 + 1) =

Answers

Answer:

3

The answer is three cuase I did the math but it's hard to explain on here

Please Solve this Algebraic Proof for Geometry!!
2 images attached

Answers

The value of x from the given figure is 3. Hence, proved.

Given that, ∠XVW=∠W.

What is vertical angles theorem?

When two lines cross at a point, vertical angles are created. They are always on an equal footing. In other words, four angles are created anytime two lines cross or intersect. It is evident that two opposed angles are equal and are referred to as vertical angles. They are also known as "Vertically opposite angles" due to the fact that they are perpendicular to one another.

∠XVW = ∠W   (Given)

∠XVW = ∠ZVY  (Vertical angles theorem, vertical angles are congruent.)

∠ZVY = ∠W  (Transitive property of congruence)

m ∠ZVY = m ∠W (Angle congruence postulate)

8x+13=75x+28 (Substitution property of equality)

5x=15 (Subtraction property of equality)

x=3 (Division property of equality)

The value of x from the given figure is 3. Hence, proved.

To learn more about the vertical angle theorem visit:

https://brainly.com/question/16987080.

#SPJ1

Help me because i forgot everything :(

Answers

The graph that results from placing the coordinates on the graph is shown below.

Consequently, the graph's coordinates are (-1,1), (0,3), and (1,5)

How to solve linear equations on a graph?

We graph both equations in the same coordinate system in order to visually solve a system of linear equations. The intersection of the two lines is where the system's answer will be found. The point where the two lines join is (-3, -4), which is where this equation system's solution lies.

There are 3 methods for graphing a linear equation:

1.displaying the graph of a linear equation using two points.

2.Use a linear equation's slope and y-intercept.

3.using a linear equation's x- and y-intercepts.

So we take 3 values to substitute in place of x like

-1,0,1

values of y we get are

1,3,5

Now placing the co ordinates on the graph we get the following graph,

Therefore, the co-ordinates constituting the graph are (-1,1), (0,3), (1,5)

to learn more about solving linear equations graphically, click here:
https://brainly.com/question/1060504

#SPJ13

Write the time in the blank below

Answers

The time shown on the clock is 6:30

Answer: 6:30

Step-by-step explanation: every number you count by 5 and the short hand is the hour hand.

a car has a15 gallon gas tank and gets a maximum average mileage of 24 miles per gallon

Answers

Answer:

360 miles

Step-by-step explanation:

24*15=360

360 miles can be driven in 15 gallons gas.

what is Unitary Method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For, example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Given:

A  car has a15 gallon gas tank.

Now, per gallon = 24 miles driven

So, in 15 gallons, the miles driven

= 24 x 15

= 360 miles.

Learn more about unitary method here:

https://brainly.com/question/22056199

#SPJ2

Select the equation that has the same solution.
brainiest for the best answer. 100 points.

Answers

Answer: 11/4n + 2 = -3 +3/2n

Step-by-step explanation:

1) Solve the given equation

-5n + 31 = -14n -5

9n = -36 (Move like terms)

n = -4

2) Solve every other equation until match

1a)

11/4n + 2 = -3 +3/2n

11/4n = -5 + 6/4n (Change fraction and move like terms)

5/4n = -5 (minus fraction)

n =  -4 Correct

the healthcare provider prescribes propofol (diprivan) at 8 mcg/kg/minute for a client during conscious sedation. the drug is dispensed as a econdary infusion labled, 0.9% normal saline 50 ml with propofol 100 mg/50 ml the client's weight is 198 pounds. the nurse should program the infusion pump to deliver how many ml/hour? (enter numeric value only. if rounding is required, round to the nearest tenth.)

Answers

The nurse should program the infusion pump to deliver 21.6ml/hour

Given the following:

Drug propofol prescribed is 8mcg/kg/min

Drug dispensed in 100mg in 50ml NS

Weight of patient is 198 pounds

Converting pounds in Kg:

198 pounds is (1 pound is 0.45Kg)

89.8 equivalent to 90Kg

Converting 8mcg/kg/min into mg/kg/min:

8mcg is 0.008mg so it becomes 0.008mg/kg/min

Patient weight is 90 kg , so required drug is:

90x0.008=0.72 mg/min

Now 50ml has 100mg, so 1ml has 2mg

We want to give 0.72mg, so if there is 2mg in 1 ml how much will be 0.72 mg for, by doing cross multiplication we get as below:

2mg in 1 ml

0.72=?

=0.72x1/2

=0.36ml

Now we have to give 0.36ml/min

Infusion pump has rate in ml/ hour, as 1 hour has 60 min, we multiply 0.36x60=21.6ml/hour

Hence, Infusion pump delivered 21.6ml/hour

Learn more conversion rates here:

https://brainly.com/question/28444122

#SPJ4

If Jake can type approximately 25 words per minute, how long will it take him to type a 1,000 word paper

Answers

Answer

It'll take Jake 40 minutes to type the 1,000 word paper.

Explanation

Working at that same speed, let the number of minutes it will take Jake to type 1,000 word paper be x minutes.

25 words = 1 minute

1,000 words = x minutes

We can write a mathematical relationship for this by cross mutiplying

(25) (x) = (1,000) (1)

25x = 1,000

Divide both sides by 25

(25x/25) = (1,000/25)

x = 40 minutes

Hope this Helps!!!

Find the area of a circle with diameter of 8cm use the value 3.14 for pie and do not round awnser

Answers

Explanation

The area of a circle with a radius r is given by the following formula:

[tex]A=\pi\cdot r^2[/tex]

In this case we know that the diameter is 8cm which means that its radius is 4cm. Using 3.14 for pie we get:

[tex]\begin{gathered} A=3.14\cdot(4cm)^2 \\ A=3.14\cdot16cm^2=50.24cm^2 \end{gathered}[/tex]Answer

Then the answer is 50.24 cm².

What is the complete factorization of
-12 + 3x + 28?
F. (x-4)(x-7)
G. -(x-4)(x + 7)
H. -(x + 4)(x + 7)
J. -(x-7)(x + 4)

Answers

Answer:

J. - (x-7)(x + 4)

Step-by-step explanation:

Using the quadratic formula, find the roots of the equation 3x = 2x² + 1.
A
x = -0.5 and x = −1
B x= 1.5 and x = 0
C
D
x = 2 and x = 1
x = 1 and x = 0.5

Answers

Using the quadratic formula we can conclude that the equation 3x = 2x² + 1 has two real roots which are x = 1 and x = 0.5.

What is the quadratic formula?The definition of a quadratic as a second-degree polynomial equation implies that at least one squared term must be present. It also goes by the name quadratic equations. The quadratic equation has the general form ax² + bx + c = 0.

The quadratic formula: [tex]x = \frac{-b+-\sqrt{b^{2}-4ac } }{2a}[/tex]

Equation is 3x = 2x² + 1.Then, 2x² -3x + 1.Now, a = 2, b = -3 and c = 1.

There are two real roots which are x = 1 and x = 0.5.

(Refer to the image attached below for the working)

Therefore, using the quadratic formula we can conclude that the equation 3x = 2x² + 1 has two real roots which are x = 1 and x = 0.5.

Know more about the quadratic formula here:

https://brainly.com/question/8649555

#SPJ13

9 Write the double that you would use to solve the problem Then solve it. Write your answers in the blanks. 4+5= ? Use the double 4+5= ​

Answers

4+5=9 9x2=18 therefore your answer is 18

A lorry travels at a speed of 45 km/h for 2 hours from factory P to factory Q. Then the lorry takes 30 minutes more for its return journey. Calculate the average speed.​

Answers

40 Km/h will be the average speed of the lorry for the overall journey from factory P to Q and again from factory Q to P.

The distance between the factories can be calculated by the Speed-Time relation.

Total Distance = Total Speed x Total Time = 45Km x 2 = 90Km

To calculate the Average Speed, Total Distance and Total Time are the essential parameters.

Total Distance = 90 + 90 = 180Km

Total Time = 2 + 2.5 = 4.5h

As per the formula of Average speed:

                          Average speed = Total Distance/ Total Time

                           Average speed = 90+90Km / 4.5h

                                                      = 40Km/h

Learn more about Average speed:

https://brainly.com/question/4931057

What is the slope of the line that passes through the points (10, 4) and (7, 3)?

Answers

Answer:

  1/3

Step-by-step explanation:

You want to know the slope of the line through points (10, 4) and (7, 3).

Slope formula

The slope of the line through two points (x1, y1) and (x2, y2) is given by the formula ...

  m = (y2 -y1)/(x2 -x1)

Application

For the given points, the slope is ...

  m = (3 -4)/(7 -10) = -1/-3 = 1/3

The slope of the line is 1/3.

6. A large community college has professors
and lecturers. The total number of faculty
members is 228. The school reported that
they had 5 professors for every 14 lecturers.
How many of each type of faculty member™
does the community college employ?

Answers

The College employee in total count will be 60 professors and 168 lecturers in the college community.

As given total number of faculty member in the school is 228.

Also we have information that for every 14 lecturers the college community has 5 professors counting ratio.

∴ Let's Combine the number of professor and number of lecturers and make one group as a set.

∴ Total of one set will be 5 + 14 = 19.

Now as we have total 228 members and we have the set value as 19 so we can find the total number of set that can be possible with the given members as follows [tex] \frac{228}{19} = 12 [/tex]

Hence total number of set will be 12.

As one set contains 5 number of professors so 12 sets will contain in total ( 12 * 5 ) = 60 number of professors.

As one set contains 14 number of lecturers so 12 sets will contain in total ( 12 * 14 ) = 168 number of lecturers .

For more details about college/school proportion visit the link below

https://brainly.com/question/27049030

#SPJ9

help me i don’t understand

Answers

320 i think sorry if its wrong

Answer:

23cm

Step-by-step explanation:

in this case, you don't have to actually care both the 4 because it is not a side. whoever did that is trying to trick you. now you are left with 7cm,6cm, and 10cm.

10+6+7=23

among all the computer chips produced by a certain factory, 6 percent are defective. a sample of 400 chips is selected for inspection. (a) what is the probability that this sample contains between 20 and 25 defective chips (including 20 and 25)? (b) suppose that each of 40 inspectors collects a sample of 400 chips. what is the prob- ability that at least 8 inspectors will find between 20 and 25 defective chips in their samples?

Answers

The number of ways to select a sample of 2 computer chips so that at least one of the chips is defective is 9876 ways.

The box contains 400 computer chips. Of these 400 chips 24 are defective and 376 are good.

A quality control inspector samples 2 computer chips.

The number of ways to select at least 8 defective chip is:

n (At least 8 defective chip) = n (1 defective chip) + n (2 defective chips)+n (3 defective chips)+n (4 defective chips)+n (5 defective chips)+n (6 defective chips)+n (7 defective chips)+n (8 defective chips)

The number of ways to select 1 defective chip is:24C1*400C1=24*400=9600  ways.

The number of ways to select 2 defective chips is: 24C2*400C0=276*1=276ways.

n (At least 1 defective chip) = n (1 defective chip) + n (2 defective chips)

                                             = 9600+276

                                             = 9876

Thus, the number of ways to select a sample of 2 computer chips so that at least one of the chips is defective is 9876 ways.

learn more about of probability here

https://brainly.com/question/14840206

#SPJ4

Is 1/1 a terminating or repeating decimal

Answers

Terminating Decimal: A decimal number that has digits that end. Examples: 0.25Repeating Decimal: Also called a recurring decimal, is a number whose decimal representation eventually becomes periodic (i.e., the same sequence of digits repeats indefinitely). e.g 0.16666[tex] \frac{1}{1} = 1[/tex]Therefore 1 is a terminating decimal

what is the mean of 45,68,77,90,90,95,100,100,86,90,50,55

Answers

Answer:

78.8

Step-by-step explanation:

explain the strategy you used to sove this equation 3(5x-2)=3x+8-2x

Answers

Answer:

x = 1

Step-by-step explanation:

3(5x-2)=3x+8-2x

Apply the Distributive Property

15x - 6 3x+8 - 2x

Combine like terms

15x-6= x+8

Rearrange variables to the left side of the equation

15x-x=8+6

Combine like terms

14x 8+6

(I don't know if you want me to answer it)

60% of a number is 66. Which proportion best represents this relationship?
Responses

66b =60100

Answers

Answer:

then answer is never going to give you up never going to let you down

What is the constant rate of change of the table below?

Answers

10x4 is 40, 20x4 is 80, 30x4 is 120, and 40x4 is 160 so that means the constant rate is 4

Find the equation of the line and passing through (4,3) with slope= -5

Answers

The required equation of the line is 5x + y + 17 = 0.

What is an equation?

An equation is a formula in mathematics that expresses the equivalence of two expressions by linking them with the equals symbol =. Equations are used to describe geometric shapes in Cartesian geometry. Because the equations under consideration, such as implicit equations or parametric equations, contain an unlimited number of solutions, the goal has shifted: instead of directly stating the solutions or counting them, which is impossible, one utilizes equations to investigate the features of figures. This is the fundamental concept of algebraic geometry, a significant branch of mathematics. An equation consists of two expressions joined by an equals sign ("="). The expressions on each side of the equals sign are referred to as the equation's "left-hand side" and "right-hand side."

The equation of the line is given below:

y - 3 = -5(x - 4)

or, y - 3 = -5x - 20

or, 5x + y + 17 = 0

Hence, the required equation of the line is 5x + y + 17 = 0.

To know more about an equation, click on the link

https://brainly.com/question/1214333

SPJ13

HELP!! // Your parents allow you to have Internet access on your cell phone as long as you prepay the bill. If your bill is $19.60 per week, how much would you have to save per day to pay the bill? Describe the process you use to solve the problem.

Answers

Answer: $2.80 a day

Step-by-step explanation:

you would need to save at least $2.80 a day, just take the total (19.60) and divide it by the number of days you have till its due, in this case a week (7 days) than divide. 19.20/7= 2.8

Given: GHIJ is a parallelogram.
HP = JQ PQ bisects GI
Prove: PX = QX
Hint: Use subtraction of the side lengths.

Answers

PX ≅ QX, as ΔGXP ≅ ΔIXQ is congruent by the AAS property.

Given, GHIJ is a parallelogram.

Given, HP ≅ JQ

GH ≅ JI, as both are on opposite sides it is a congruency property.

GP ≅ QI, the definition of congruency.

GP + PH ≅ JQ + QI, segment addition property.

∡PXG ≅ ∡ IXQ, vertical angles are congruent.

GH || JI, opposite sides are parallel

∠ PGH ≅ ∠QIX, alternate interior angles

PX ≅ QX, corresponding parts of congruent triangles are congruent.

ΔGXP ≅ ΔIXQ is congruent by the AAS property.

Therefore, PX ≅ QX

Learn more about congruency at

https://brainly.com/question/7724089?referrer=searchResults

#SPJ1

On a cave dive in Oahu, a scuba diver swims at an elevation of 20 3/4 ft relative to sea level. She notices a sea turtle above her and rises 6 ft to take its picture. At what elevation does the diver take the picture?

Answers

The elevation at which the diver takes the picture is -14 3/4 feet if, on a cave dive in Oahu, a scuba diver swims at an elevation of 20 3/4 ft relative to sea level.

What is a fraction?

Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

On a cave dive in Oahu, a scuba diver swims at an elevation of 20 3/4 ft relative to sea level.

Let x be the elevation at which the diver takes the picture.

The value of x can be found as follows:

x = -20 3/4 + 6

x = -83/4 + 6

x = (-83 + 24)/6

x = -59/6

Or

x = -14 3/4 feet

Thus, the elevation at which the diver takes the picture is -14 3/4 feet if, on a cave dive in Oahu, a scuba diver swims at an elevation of 20 3/4 ft relative to sea level.

Learn more about the fraction here:

brainly.com/question/1301963

#SPJ1

There is a proportional relationship between gallons and pints.
A) What is the constant of proportionality to convert gallons to pints? Show your work and/or explain your reasoning.
explain pls

Answers

The constant of proportionality to convert gallons to pints given the information in the table is 8.

What is the constant of proportionality?

The constant of proportionality is the ratio that equates to variables in a directly proportional relationship. A directly proportional relationship is a relationship where the two variables move in the same direction.

The equation for direct proportionality:

y = bx

where:

y = dependent variable = gallons b = constant of proportionalityx = independent variable = pints

16 = 2b

b = 16/2 = 8

40 = 5b

b = 40 / 5 = 8

56 = 7b

b = 56 / 7 = 8

To learn more about constant of proportionality, please check: https://brainly.com/question/22620356

#SPJ1

Other Questions
Here are six numbers-4, -2, -1, 5, 6, 8Arrange the numbers into two pairs with the same total Two people working together to create a new machine is an example of what Identify the slope and y intercept What is the main argument of the passage? What claims does the author make to support the argument? How valid, relevant, and sufficient is the reasoning and evidence used to support the argument and claims? Does the author use false statements or fallacious reasoning to support the argument and claims? Use evidence from the text to support your response. Your evaluation of the argument should be TWO OR THREE complete paragraphs. In a digital world, opportunities to connect with other people abound. We e-mail recipes, text funny jokes, leave rambling voice messages, write opinionated blog posts, and send digital birthday cards. Some of us boast online friends in the thousands who routinely like our comments about politics and pop culture. In turn, we like pictures of their dogs in holiday sweaters and photos of them with their friends doing fun and exciting things.Are these the kind of friends we can depend on? What if we get stranded at the library during a storm and cant reach anyone at home? How many of these friends would we feel comfortable calling to ask for help? More important, of those we might call, how many would help us in this situation? A real friend is someone for whom we feel affection or personal regard. Its the person who helps us when were in need.Despite our social interactions with a stream of online acquaintances, studies show that we are lonelier than ever. According to Relationships Australia, a community-based support services organization, people under age 35 are the most active online communicators. Yet, they report feeling more isolated and lonesome than any other age group. how to clear the contents of cell b8 in an excel document what is the conflict to the book moxie? Which choice is a correct interpretation of why the author includes the reference to the Battle of Little Big Horn?A.to show that fighting between the white men and Native Americans has been going on for a long timeB. To explain why Crazy Horse is a hero to the Sioux peopleC. to describe an important historical battleD. to show why a memorial to Crazy Horse is inappropriate two months ago, your company wrote off a receivable account for a customer because it was deemed unlikely to be collectible. today, due to a change in circumstances, you learned that this amount will definitely be collected in the near future. what is the entry required to reinstate the customer's balance? cheggin the experiment to determine which mechanism was used by restriction endonucleases, what evidence ruled out the formation of a covalent intermediate? 5) The lengths of the fours sides of a quadrilateral are consecutive integers. If the perimeter is 94 meters, find the valueof the shortest of the four side lengths. What is the surface area of the cube below?A. 96 unitsB. 120 unitsC. 64 unitsD. 80 units -3p-4 What two issues is Susan B. Anthony connecting to in the passage? a nurse researcher is interested in finding information about pancreatic cancer in an electronic database. one of the first tasks they must undertake to begin the database search for the desired information is: What is the percentage change from 5 to 2? What two fundamental parts make up a chromosome? which signaling molecule is most likely responsible for an increase in digestive activity? group of answer choices norepinephrine adrenaline acetylcholine epinephrine you have two test tubes. one test tube contains fe 3(aq) solution and the other test tube contains ni 2(aq). predict what will happen when naoh(aq) is added to both test tubes. if a reaction occurs, what is the new chemical formula? f(x) = x2 5.) Multiply by 3, then subtract 2. what is the difference between these two formulas [tex]fc = \frac{m(v {}^{2}) }{r} [/tex][tex]ac = \frac{v {}^{2} }{r} [/tex]and how would I apply them to a promblem?