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The percentage of tires that will have a life of 45,000 to 55,000 miles is  68.27%. So the correct option is 68.27%.

To find the percentage of tires that will have a life of 45,000 to 55,000 miles, we can use the concept of the normal distribution.

First, we calculate the z-scores for both values using the formula:
z = (x - mean) / standard deviation

For 45,000 miles:
z1 = (45,000 - 50,000) / 5,000 = -1

For 55,000 miles:
z2 = (55,000 - 50,000) / 5,000 = 1

Next, we look up the corresponding values in the standard normal distribution table. The table will provide the proportion of data within a certain range of z-scores.

The percentage of tires with a life between 45,000 and 55,000 miles is the difference between the cumulative probabilities for z2 and z1.

Looking at the standard normal distribution table, the cumulative probability for z = -1 is 0.1587, and the cumulative probability for z = 1 is 0.8413.

Therefore, the percentage of tires that will have a life of 45,000 to 55,000 miles is:
0.8413 - 0.1587 = 0.6826

Converting this to a percentage, we get:
0.6826 * 100 = 68.26%

So the correct answer is 68.27%.

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Answer:

The answer is "c"

Step-by-step explanation:

Website A

$5 rental fee + $12registration fee

Website B

$2 rental fee + $24 registration fee

Let x represent the number of videogames you have to rent, tyou can calculate the total cost for renting videogames at each website as:

To calculate the number of videogames you have to rent for the total cost to be the same regardless the web site, you have to equal both expressions:

And now what's left is to calculate for x:

You have to rent 4 videogames in each website for the total cost to be the same.

Answer:

y=5x+31

Step-by-step explanation:

y=mx+b

1=(-6*5)+b

1=-30+b

31=b

y=5x+31

(5*-6)+31

-30+31

1

you can also graph a line on desmos

Answer:

28

Step-by-step explanation:

first, do 8-6 because that's in its own brackets, then do 5+2 and multiply it by the answer to 8-6. finally, multiply that by 2.

8-6=2

5+2=7

2×7=14

14×2=28

28

Answer:

18

Step-by-step explanation:

First, solve everything inside the parenthesis

1) 8-6=2

2) 5+2*2=9

Next, multiply 9 and 2

3) 9*2=18

Hope this helps!

The equation of the tangent line at (-1, 2) is y = (2/5)x + 12/5.

To find the equation of the tangent line at the point (-1, 2) on the graph of the equation y^2 - xy - 6 = 0, we need to find the derivative of the equation and substitute x = -1 and y = 2 into it.

First, let's find the derivative of the equation with respect to x:

Differentiating y^2 - xy - 6 = 0 implicitly with respect to x, we get:

2yy' - y - xy' = 0

Now, substitute x = -1 and y = 2 into the derivative equation:

2(2)y' - 2 - (-1)y' = 0

4y' + y' = 2

5y' = 2

y' = 2/5

The derivative of y with respect to x is 2/5 at the point (-1, 2).

Now we can use the point-slope form of a line to find the equation of the tangent line. The point-slope form is:

y - y1 = m(x - x1)

Substituting x = -1, y = 2, and m = 2/5 into the equation, we get:

y - 2 = (2/5)(x - (-1))

y - 2 = (2/5)(x + 1)

Simplifying further:

y - 2 = (2/5)x + 2/5

y = (2/5)x + 2/5 + 10/5

y = (2/5)x + 12/5

Therefore, the equation of the tangent line at (-1, 2) is y = (2/5)x + 12/5.

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Answer:

(-1, 1)

Step-by-step explanation:

If you move 5 to the left, you are subtracting 5 from x, and if you are going 2 up, then you add 2 to y.

Answer:

3 hours minus 15 minutes = 2 hours 45 minutes (2.75 hours)

(2.75 mph)(2.75 hours) = 7.5625 miles

Answer:

-|b| < b

Step-by-step explanation:

-b where?

The value of $\#(\&4)$ is 81. We first evaluated $\&4$ using the definition given, which gave us the value 9. Then, we substituted this value into the definition of $\#x$ to find the final answer of 81.

To find the value of $\#(\&4)$, we first need to evaluate $\&4$. Using the given definition of $\&x$, we have:

$$\&4 = 4 + 5 = 9$$

Now, we can substitute this value into the definition of $\#x$:

$$\#(\&4) = \#9 = 9^2 = 81$$

Therefore, the value of $\#(\&4)$ is 81. We first evaluated $\&4$ using the definition given, which gave us the value 9. Then, we substituted this value into the definition of $\#x$ to find the final answer of 81.
To find the value of #(&4), let's first compute &4.

According to the definition, &x = x + 5. So, &4 = 4 + 5 = 9.

Now we need to find the value of #9. The definition of #x is x², which means #9 = 9² = 81.

Therefore, the value of #(&4) is 81.

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Answer: if you need me to combine, its x6+y3. if not, say please

Step-by-step explanation:

Answer:

the smaller triangle the other lengths have been divided by 4 so would guess the answer is 2

Colin has lived by the biblical ideal of avoiding debt, purchasing the lowest item, repaying a loan, and being financially honest.

With an auto loan, you may borrow money from a bank and use it to purchase a vehicle. The loan must be repaid with interest over a defined period of time in fixed instalments from you.

Lenders will aim for a credit score of at least 750 when you apply for a vehicle loan.

The additional costs won't dramatically raise the price of the automobile because of the low interest rate. The periodic payments won't put undue strain on your current or next finances.

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The probability of obtaining tails and the number 5 is 1/12

the probability of obtaining an even number is 1/2

P(heads and prime number)  1/4

Since the events are independent, the probability of obtaining tails and the number 5 is:

P(tails and 5) = P(tails) * P(5) = (1/2) * (1/6) = 1/12

The coin toss outcome is irrelevant, so the probability of obtaining an even number is:

P(even number) = 1/2

The probability of obtaining heads and a prime number is:

P(heads and prime number) = P(heads) * P(prime number) = (1/2) * (1/2) = 1/4

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it's 25b

5(5b)

5*5b =25b

Answer:

25b is your answer

Step-by-step explanation:

i took the test

Conversion of pressure of 1379 torr to atm= 1.814474

Unit conversion is a multi-step procedure that involves adding, subtracting, multiplying, or dividing by a conversion factor.

Additionally, choosing the right number of significant digits and rounding may be necessary during the process.

The multi-step process of unit conversion involves multiplying or dividing by a numerical factor.

Weight, distance, and temperature can all be measured in a variety of ways.

Temperature is expressed in degrees Celsius, weight is expressed in kilos, and distance is measured in kilometers.

Imagine you are on vacation in India and are informed that the two cities are 100 kilometers apart.

Hence, Conversion of pressure of 1379 torr to atm= 1.814474

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The fraction which should go into the boxes marked A and B in their simplest form is 3/4 and 1/4 respectively.

Total number of fruits Amy has = 10

Number of Apples = 7

Number of Oranges = 3

First random pieces of fruits chosen:

Probability of choosing Apples = 6/9

Probability of choosing Oranges = 3/9

Second random pieces of fruits chosen:

Probability of choosing Apples = 6/8

= 3/4

Probability of choosing Oranges = 2/8

= 1/4

Therefore, the probability of choosing Apples or oranges as the second piece is 3/4 or 1/4 respectively.

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In Fechner's Law, as one variable increases arithmetically, the other variable increases geometrically.

In Fechner's Law, as one variable increases arithmetically, the other variable increases: b. geometrically.

Fechner found in his research that different people have different sensitivities to certain stimuli. For example, the ability to see differences in light can affect the quality of a person's vision. It has also been noted that people are sensitive to changes in stimuli due to emotional impact. He used this to create another version of Weber's law, which he called die Maß formel, or "measurement formula." Fechner's law states that the force of thought is proportional to the logarithm of the force.

If the intensity of the stimulus is tripled (eg 3×1), the sensitivity doubles from its original value (eg 1+1).

If the intensity of the stimulus is tripled again (eg 3×3×1), the corresponding sensitivity will be three times its original value (eg 1+1+1).

So, for the stimulus intensity to double, the perceived intensity only increases.

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The given statement "The chi-square distribution is used to perform tests for the population variance but not the standard." is generally true, but it depends on the degree of non-normality of the data and the sample size.

The chi-square test for variance is a hypothesis test that compares the variance of a sample to a known or hypothesized value. The test statistic is calculated as follows:

χ² = (n - 1)s² / σ²

Where χ² is the test statistic, n is the sample size, s² is the sample variance, and σ² is the hypothesized population variance. The test compares the value of χ² to a chi-square distribution with (n - 1) degrees of freedom.

However, if the sample size is large enough, the central limit theorem states that the sample mean will be normally distributed, regardless of the underlying distribution of the data.

The minimum sample size required for the chi-square test to be valid depends on the degree of non-normality of the data.

As a general rule, a sample size of at least 20 is recommended for the chi-square test to be valid for non-normal data.

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Complete Question:

True or false; The chi-square distribution is used to perform tests for the population variance but not the standard.

There are 8 juniors in the program, Let J be the number of juniors in the program and S be the number of seniors. We are given that J + S = 28 and 0.25J = 0.1S.

Solving the first equation for S, we get S = 28 - J. Substituting this into the second equation, we get:

0.25J = 0.1(28 - J)

Simplifying the equation, we get J = 8.

Therefore, there are 8 juniors in the program.

Let J be the number of juniors in the program and S be the number of seniors.

We are given that J + S = 28 and 0.25J = 0.1S.

Solving the first equation for S, we get S = 28 - J. Substituting this into the second equation, we get:

Code snippet

0.25J = 0.1(28 - J)

Simplifying the equation, we get J = 8.

Therefore, there are 8 juniors in the program.

The answer can also be found by using a Venn diagram. The Venn diagram shows that there are 4 juniors on the debate team and 4 seniors on the debate team.

Since the number of students on the debate team is equal to the number of juniors, there must be 8 juniors in the program.

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Answer:

Yes

Step-by-step explanation:

Answer:

The equation of the line that passes through the given points is ;

7y = -x + 12

Step-by-step explanation:

Here, we want to get the equation of the line that passes through the given points

The general equation form

is;

y = mx + b

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

Now, let us substitute the x and y coordinate values of each of the points;

for (-2,2); we have

2 = -2m + b

b = 2m + 2 •••••(i)

for F;

1 = 5m + b

b = 1-5m ••••••(ii)

Equate both b

1-5m = 2m + 2

1-2 = 2m + 5m

7m = -1

m = -1/7

Recall;

b = 2m + 2

b = 2(-1/7) + 2

b = -2/7 + 2

b = (-2 + 14)/7 = 12/7

The equation of the line is thus;

y = -1/7x + 12/7

Multiply through by 7

7y = -x + 12

If a point's preimage is P(x, y), then its image after a dilation with a scale factor of k and centered at the origin (0, 0) is P'(kx, ky).

The set of all points in a function's domain that correspond to a given point in the range is known as the preimage of a point in mathematics.

Formally, let f be a function that goes from a set A to a set B, and let y be a point in B. The preimage of y is the set of all points x in A where f(x) = y, or the set of all points in the domain that the function maps to the given point in the range.

If the preimage of the point P has facilitates (x, y), and the expansion focused at the beginning with a scale component of k is applied, then the directions of the picture point P' can be tracked down utilizing the accompanying recipe:

The x- and y-coordinates of P' are determined by multiplying the corresponding coordinates of the preimage point P by the scale factor k; consequently, the coordinates of the image point P' following the dilation with the origin centered on k would be (kx, ky).

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Complete question: If P(x,y) is the preimage Of a point, then it’s image after a dilation centered at the origin (0,0) with the scale factor k is the point P'.

What are the coordinates of point P'?

Answer:

0.2

Step-by-step explanation:

1.6/8=0.2

hope this helps :3

if it did pls mark brainliest

Answer:

x is -2

u is -2

You need to expand the brackets.

The steps are shown in the picture above. Hope this helps

Answer:

Ray DE and Ray AE

Step-by-step explanation:

Ray AE and ray CE are the required pair of opposite rays. Option A is correct.

Given that,
A figure has shown, Four rays have been emerging out from a single point E. It is to be determined that which pair of rays are pair of opposite rays.

What is a Line?

A line can be defined by the shortest distance between two points is called a line.

Here, as shown in the figure,
Four trays are emerging out from point E namely, AE, BE, CE, and DE. Rays AE and CE or Ray DE and BE both are pairs of opposite rays

Thus, ray AE and ray CE are the required pair of opposite rays. Option A is correct.

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Answer:£872

Step-by-step explanation:

Answer:

The Answer is option B : 5