7. The lifetime of a certain brand of tires is approximately normally distributed, with a

mean of 40,000 miles and a standard deviation of 2,500 miles under normal driving conditions.

Tire wear is greatly affected by road, weather and driver conditions along with proper

maintenance of the tires. A driver who aggressively accelerates or makes quick stops, for

example, will wear out a tire much more quickly. The brand carries a warranty of 33,000 miles

under normal driving conditions, i.e., the company will replace a tire if it wears out before this

mileage limit is reached.

Answers

Answer 1

Answer:

0.0025551

Step-by-step explanation:

Given that:

Mean (m) = 40000

Standard deviation (s) = 2500

P(x < 33,000) :

USing the relation to obtain the standardized score (Z) :

Z = (x - m) / s

Z = (33000 - 40000) / 2500 = - 2.8

p(Z < -2.8) = 0.0025551 ( Z probability calculator)

Probability of Tyre wagering out before mileage limit is reached = 0.0025551


Related Questions

Alaina surveyed students on her bus about their homework.The results are shown in this two-way table. Student Homework Last Night Responses Had Homework 8 Did Not Have Homework 4 Alaina used this data to design a spinner with 6 congruent sections that predicts whether a randomly selected student had homework last night. How many sections of Alaina’s spinner represent students who did not have homework? 2 4 6 8

Answers

Answer:

2

Step-by-step explanation:

Answer: 2

I got it right on ed

Patrice and Arnold went to the bank together and checked their account balances Patrice's balance was - 55 and Arnold's was - 56 . Who has a greater debt? Explain using the concept of absolute value.

Answers

Answer:

Arnold has greater debt because he owes an extra dollar to the bank

Step-by-step explanation:

Sherrie buys a laptop computer for $600. Each year, the value of her laptop decreases by $40. How many years will it take before the laptop is not worth anything? Explain how you know your answer is correct.

Answers

Answer:

15 years

Step-by-step explanation:

$40 x 15 (years) = 600

600 - 600 = 0

2. Write an equation in slope intercept form with the given Information Goes through points (1, 8) and (5, 0)

Answers

Answer:

[tex]y = -2x + 10[/tex]

Step-by-step explanation:

Slope: [tex]m = \frac{y_{2}-y_{1} }{x_{2}-x_{1}}[/tex]

Slope-Intercept Form: [tex]y=mx+b[/tex]

[tex]m=\frac{8-0}{1-5}[/tex]

[tex]m = -2[/tex]

[tex]y = -2x + b[/tex]

[tex]0 = -2 (5)+b[/tex]

[tex]0=(-10)+b[/tex]

[tex]b = 10[/tex]

[tex]y = -2x + 10[/tex]

guys Im getting a tattoo I'm 13 tho..but should I get butterflies or hearts? let me know assasp​

Answers

I would personally like butterflies :)

Retail Sales: HELP! 15 POINTS AND BRAINLIEST
Suppose you have a $5-off coupon at a fabric store. You buy fabric that costs $7.50 per yard. Write an equation that models the total amount of money y you pay if you buy x yards of fabric. What is the graph of the equation?

Answers

Answer:

7.5x-5 is equation for graph :)

BRAINLIEST PLEASE

Step-by-step explanation:

2 Joey runs 4 – miles in of an hour and Chandler runs 2 miles miles in of an hour. Who runs faster

Answers

Answer: Joey is faster

Step-by-step explanation: Because in 1 hour Joey is run 4 mile but in 1 hour Chandler is run 2 mile

Answer: Joey is faster

Step-by-step explanation: Because in 1 hour Joey is run 4 mile but in 1 hour Chandler is run 2 mile

Which of the following equations is equivalent to 2(3x - 1) = 3 - (- 2 - x)?

1. 6x - 2 = 1 - 4
2. 6x - 1 = 1 + x
3. 6x - 2 = 5 + x
4. 6x - 1 = 5 - x

Answers

Answer:

It would be 2. 6x - 1 = 1 + x

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

During the basketball season, Cory made 21 of the 60 baskets she attempted. Krista made 16 out of 40 baskets she attempted. Paul made 17 of the 50 baskets she attempted and Sally 11 of the 55 she attempted. Who had the greatest percentages of baskets made?

Answers

Given:

Cory made 21 of the 60 baskets she attempted.

Krista made 16 out of 40 baskets she attempted.

Paul made 17 of the 50 baskets she attempted.

Sally 11 of the 55 she attempted.

To find:

Who had the greatest percentages of baskets made?

Solution:

We know that,

[tex]\text{Percentage of baskets made}=\dfrac{\text{Baskets made}}{\text{Total attempts}}\times 100[/tex]

Using this formula, we get

[tex]\text{Cory's percentage of baskets made}=\dfrac{21}{60}\times 100=35\%[/tex]

[tex]\text{Krista's percentage of baskets made}=\dfrac{16}{40}\times 100=40\%[/tex]

[tex]\text{Paul's percentage of baskets made}=\dfrac{17}{50}\times 100=34\%[/tex]

[tex]\text{Sally's percentage of baskets made}=\dfrac{11}{55}\times 100=20\%[/tex]

From the above percentages 40% is maximum.

Therefore, Krista has greatest percentage of baskets made.

Please help and explain process too. Thank you!! ​

Answers

The answer is x^2+2x-5

Help question in the picture

Answers

Answer:

thank you for the points :D

Step-by-step explanation:

Kareem has a collect of dimes and quarters. He can tell that he has more quarters than dimes, and he knows that he has at most $2.

Write the system of inequalities to represent this.

Answers

Answer:

D<Q≤2 Or D<Q Q+D≤2

Step-by-step explanation:

I'm pretty sure this is the answer but it's been a while since I've done system of inequalities. Essentially the value and number of dimes is less than the value and number of quarters. And the value of both is less than or equal to 2 dollars

John walks m miles each week. Marie’s distance can be found by using the expression : 3m + ½

If John walks 7 miles in one week, how many miles does Marie walk?

Answers

Answer:

21.5 Miles or 21 ½ Miles

Step-by-step explanation:

Plug in 7 as m to 3m + ½.

Then, I get 3(7) + ½.

That concludes to 21 + ½

Add the ".5" or "½" at the end

So, answer is you get is 21.5 of 21 ½

use the multiples method to find Least common denominator , then find the sum or difference , please help me understand dis ill mart brainliest ​

Answers

i’m so sorry i have to comment on this i rlly need points- i don’t know the answer :|

Answer:

25/28

Step-by-step explanation:

3/4+1/7

21+4/28

25/28

anyone please help!!!​

Answers

Answer:

The answer is D.

Step-by-step explanation:

When you subtract 9 from h, the word “then” is a key term that means it’s usually in parentheses. Then you divide three.

Add the equation u-v/8v + 6u-3v/8v

Answers

Answer:

7u-4v/8

Step-by-step explanation:

u+6u=7u

-v+(-3v)=-v-3v=-4v

7u-4u/8

solve the system of equations X-Y = -12 and -8x-4y=-12 by combining the equations

Answers

Answer:

x = -3

y = 9

Step-by-step explanation:

you can add the equations after multiplying the first one by 8

8x - 8y = -96  added to -8x - 4y = -96

'x' eliminated;  -12y = -108;  y = 9

Solve for 'x':

x - 9 = -12

x = -12 + 9

x = -3

Write this percentage as a fraction in its simplest form.
46%

Answers

Answer:

23/50

Step-by-step explanation:

46% is the same as 46/100 that can be simplified to 23/50

The percentage 46% as a fraction in its simplest form is 23/50.

The given fraction is 46%.

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

The percentage can be written in fraction by dividing the number by 100.

Here, 46% = 46/100

= 23/50

Therefore, the percentage 46% as a fraction in its simplest form is 23/50.

To learn more about the percentage visit:

brainly.com/question/24159063.

#SPJ6

he heat in the house is set to keep the minimum and maximum temperatures (in degrees Fahrenheit) according to the equation |x – 72.5| = 4. What are the minimum and maximum temperatures in the house? 72.5°F and 76.5°F 68.5°F and 76.5°F 70.5°F and 74.5°F 72.5°F and 74.5°F

Answers

Answer:

B. 68.5 & 76.5

Step-by-step explanation:

In order to solve this equation you first need to change your equasion to fit 2 scenarios. So, your 2 equations are x-72.5=4 and x-72.5=-4. From there, you need to solve by adding 72.5 to each equation giving you x=76.5 and x=68.5. 68.5 degrees F is your minimum temperature and 76.5 degrees F is your maximum temperature. I have included a screenshot of my handwritten work included below for those who are visual learners.

HELPpPppPp ASAP I rlly need help I’m timeddddd frrr I will give u a Brainly thing just help and show your workkkk

Answers

Answer:

1

I hope this helps! Do you need help on anything else?

Okay here are some pictures of the work, I can't do fractions on this. :)

126x52 what is it I don’t know

Answers

Answer:

6552

Step-by-step explanation:

P.S Can I have brainliest?

Answer:

6,552

Step-by-step explanation:

Which of the equations below could be the equation of this parabola? Vertex (0,0) A v=-4 B. Y = 42 C. X=-4x D. x = 4y2​

Answers

Answer: y= -4x^2

Step-by-step explanation:

The equation of the parabolic function is y = -4x² and the graph is plotted

What is a Parabola?

A Parabola, open curve, a conic section produced by the intersection of a right circular cone and a plane parallel to an element of the cone. A parabola is a plane curve generated by a point moving so that its distance from a fixed point is equal to its distance from a fixed line

The equation of the parabola is given by

( x - h )² = 4p ( y - k )

y = a ( x - h )² + k

where ( h , k ) is the vertex and ( h , k + p ) is the focus

y is the directrix and y = k – p

The equation of the parabola is also given by the equation

y = ax² + bx + c

where a , b , and c are the three coefficients and the parabola is uniquely identified

Given data ,

Let the parabolic equation be represented as f ( x )

Now , the value of f ( x ) = y

where y = -4x²

The equation y = -4x² represents a parabola that opens downwards (since the coefficient of x² is negative).

The vertex of this parabola is at the origin (0,0), since the coefficient of x is zero. The axis of symmetry is the y-axis, since the parabola is symmetric about this line.

Hence , the equation is y = -4x²

To learn more about parabola click :

https://brainly.com/question/24042022

#SPJ7

Help me please this is really stressing me

Answers

Answer:

0.11 centimeters/minute

How old is my uncle if 400 reduced by 2 times his age is 244?

Answers

Answer:

My uncle is 78 years old.

Step-by-step explanation:

Let the age of your uncle be x.

400 - 2x = 244

Shift (-2x) to the other side and change it to (+2x).

400 = 244 + 2x

Shift (+244) to the other side and change it to (-244).

400 - 244 = 2x

Evaluate.

2x = 156

Find x.

x = 156 ÷ 2

x = 78

Write a conjecture using this information.

Rectangles are parallelograms. The opposite sides of parallelograms are parallel.

Answers

Answer:

The opposite sides of the rectangle are parallel.

Step-by-step explanation:

If that is true for all parallelograms and a rectangle is a parallelogram, then it should be true for a rectangle too, I think.

Answer:

The opposite sides of the rectangle are parallel. (for both questions)

Step-by-step explanation:

Got it right on edg

a water spinkler sends water out in a circular pattern how large is the watered area if the watering pattern is 12 ft

Answers

Answer:

The number of feet away from the sprinkler where it could spread water would be the radius of the circle in which it is spraying.

The Area of a circle is

πr2=808.64

(3.14)r2=808.64

Divide both sides by 3.14

r2=257.5286624

If I make $1,000 per minute how much time will it take to make $1,000,000?

Answers

Answer:

it would take 1,000 minutes

Step-by-step explanation:

1,000,000/1,000=1,000

Answer: I think it’ll take 1,000 minutes

Step-by-step explanation:

If you multiply 1,000 and 1,000 it’ll equal 1 million.

Hoped this helps.

Write in slope intercept form the equation of a line that has the slope of 1/3 and the y- intercept of 5.

Answers

Answer:

y = 1/3x + 5

Step-by-step explanation:

Slope intercept form is y = mx + b

m is the slope

b is the y intercept

plug your number in

y = 1/3x + 5

The cost of two books is ₹126.If the cost of one book is twice the other, the find the cost of books.​

Answers

$84 is the doubled price and $42

A 3.0 kg book sits on a very high shelf 4.5 meters above the ground. Calculate the potential energy of the book.

Answers

MASS*GRAV*HEIGHT=PE
MASS=3
GRAV=9.8
HEIGHT=4.5
3*9.8*4.5=132.3
POTENTIAL ENERGY= 132.3
Other Questions
List three 3 effects of the French and Indian War. Given that the following angles are supplementary. What is the measure of the missing angle? Define physical properties and give 3 examples. Reid earns $9.00 per hour painting furniture and has already earned $22.50. The number of hours, x, for which Reid painted can be found using the equation 22.50=9x.How many hours did Reid paint? Round 757,960 to the nearest hundred thousand. Which part of an organism is preserved in cast and mild fossils Which change would be unethical if this image is for publication in a newspaper? A. increasing the brightness of the image B. sharpening the people in the background C. eliminating the green glove on the ground D. reducing glare on the helmet of the kneeling person E. improving the saturation in the image Air is made up of different gases such as oxygen nitrogen and carbon dioxide 1/3 + a =5/4 what does a equal You want to rent a car for the day.Prestige car rentals charges $47 plus $0.07 per mile to rent a midsize vehicle . Gateway Auto changes a $35 fee plus $0.12 per mile for the same car. For what number of miles will both companies charge the same price? While doing an article on the high cost of college education, a reporter took a random sample of the cost of new textbooks for a semester. Her sample consisted of 20 students with a mean of $212.45 and a standard deviation of $38.92. A. Find the 99% confidence interval estimate of the true mean textbook cost for the semester based on her sample. Assume the cost of new textbooks is normally distributed.B. Based on part a, is an average cost of $200 for a semester a likely value for the population mean? Why or why not? The graph of a linear relationship passes through (0, 3), and (3, 9). Which is an equation for this linear relationship? help please i need help PLEASE HELP! DUE VERY SOON For every 3 dozen cookies, a bakery uses 8 cups of butter. How many dozen of cookies could you make with 20 cups of butter? Find the slope pls... Four different objects are placed on a number line at 0. The chart describes the motion of each object.ObjectMotionW3 units left, then 3 units right6 units right, then 18 units rightY8 units left, then 24 units rightZ16 units right, then 8 units leftUsing the information in the chart, the distance and displacement of each object can be determined. Which object hasa distance that is three times as great as its displacement?WZ Why, in theory, does the economy pick up when the Fed cuts rates? How can we reduce friction Which set of ordered pairs represents a function