automobile repair costs continue to rise with the average cost now at $367 per repair.† assume that the cost for an automobile repair is normally distributed with a standard deviation of $88. answer the following questions about the cost of automobile repairs. what is the probability that the cost will be between $250 and $470?

5⁻¹² is the expression that is equivalent to the quantity 5 raised to the negative second power times 5 raised to the sixth power end quantity all raised to the negative third power.

An expression is combination of variables, numbers and operators.

Given,

5 raised to the negative second power times 5 raised to the sixth power end quantity all raised to the negative third power.

This sentence can be written in the form below

(5⁻² × 5⁶)⁻³

According to laws of indices, we know that;

(a²)³ = a⁶

Thus;

(5⁻² × 5⁶)⁻³=(5⁻² )⁻³×(5⁶)⁻³

⇒ 5⁶ × 5⁻¹⁸

When bases are same then the powers will be added

⇒ 5⁶ × 5⁻¹⁸

⇒ 5⁻¹²

Hence, 5⁻¹² is the expression that is equivalent to the quantity 5 raised to the negative second power times 5 raised to the sixth power end quantity all raised to the negative third power.

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Answer:

1 divided by 5 raised to the twelfth power

Step-by-step explanation:

both of them equal the same thing

Answer:

Step-by-step explanation:

(x-60)+(x-20)+(x-40)+130+120+110=720

3X -120 + 360=720

3x +240= 720

3x= 720-240

3x=480

x= 480/3 = 160

x=160

angle F = (x-20)

angle F = 160-20=140

angle F = 140

The point estimate of the population standard deviation is 5.91 (Option A)

Standard deviation refers to the spread of a data distribution and measures the distance between each data point and the mean. The sample standard deviation (s) is a point estimate of the population standard deviation σ.

The mean of the population ẋ = sum of all values/ total number of values = 97/6 ≈ 16

The point estimate of the population standard deviation S =√(∑(xi - ẋ)^2/n-1)

∑(xi - µ)^2 = (9 – 16)^2 + (13– 16)^2 + (15– 16)^2 + (15– 16)^2 + (21– 16)^2 + (24– 16)^2 = 79 + 9 + 1 + 1 + 25 + 64 = 179

s = √(179/5) = 5.98

Note: The question is incomplete. The complete question probably is: The following information was collected from a simple random sample of a population. 9 13 15 15 21 24 The point estimate of the population standard deviation is Select one: O a. 5.91. O b. 7.688. O C. 7.018. O d. 4.925.

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Answer: 4

Step-by-step explanation:

Every number you get is 4 higher than the previous number

The average rate of change of the function f(x) is found as  -3.75.

The formula for the average rate of change (A(x)) of f(x) over the interval [a,b] is:

A(x) = f(b) - f(a) / b - a

The function being:

f(x) = 20.(1/4)ˣ

Its average rate of change between x = 1 to x = 2 must be determined.

At x = 1

Then;

f(x) = 20.(1/4)¹

f(1) = 5

At x = 2

Then;

f(x) = 20.(1/4)²

f(2) = 1.25

Add these to the formula above to get;

A(x) = f(2) - f(1) / 2 - 1

A(x) = - 3.75

Consequently, the average rate of change of a function f(x) between x = 1 and x = 2 is -3.75.

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If a person is making a minimum salary for a construction worker, in that case, they will make more than 75% of the teachers.

A salary is a form of periodic fee from a corporation to a worker, which can be laid out in an employment contract. it is contrasted with piece wages, in which every task, hour, or other unit is paid one after the other, in place of on a periodic foundation. From the factor of view of going for walks in a commercial enterprise, revenue can also be considered as the fee of obtaining and keeping human sources for jogging operations and is then termed personnel fee or salary cost. Payroll accounts are used in accounting to record.

Salary is a hard and fast amount of cash or compensation paid to a worker via an enterprise in return for work executed. salary is generally paid in fixed durations, for example, monthly bills of 1-twelfth of the annual salary.

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The component of the data that a data analyst is most interested in is sample size.

Given,

To prevent results from being skewed or causing incorrect conclusions, we must identify the data element on which the data analyst should concentrate;

The data analyst;

A data analyst looks at data to uncover useful consumer insights and possible applications for the knowledge. They also tell the management of the business as well as other stakeholders of this information.

Although it is advisable for data analysts to have a foundational knowledge of statistics and mathematics, many of their responsibilities can still be carried out without it. However, knowledge in statistics, linear algebra, and calculus is often required for data analysts.

Here,

A data analyst's primary interest in the data is sample size

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229.5 miles separate point A from point C

What is the short definition of cosine law?

According to a trigonometrical rule, the square of a side in a plane triangle is equal to the sum of the squares of the other sides minus twice that amount plus the cosine of the angle between the other two sides.

Given:

Angle AB = 370 miles 24 degrees is A.

Angle BC = 240 miles 37 degrees is B.

Since we have two angles and two sides of a regular triangle, we can apply the cosine law to calculate the distance between points A and C.

Angle B, which is 37 degrees, is the angle opposite side AC.

(AC)^2 =(AB)^2 + (BC)^2 - 2(AB)(BC)cos(B)

solve for AC:

(AC)^2 =(370)^2 + (240)^2 - 2(370)(240)cos(37)

229,48 miles equal AC.

Therefore, 229.5 miles separate point A from point C.

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Answer:

√12 = 3.46410161514

√50 = 7.07106781187

√84 = 9.16515138991

√200 = 14.1421356237

Step-by-step explanation:

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Answer: 222 cents

Step-by-step explanation: 84/14 = 6 This is the unit rate.

6 x 37 = 222

Answer:

9 is 8 hours and 10 is 10 hours

Answer:

9.  8 Hours

10. 10 hours

Step-by-step explanation:

48 ÷ 4 = 12  The unit rate is 12 per hour

12x = 96  Divide both sides by 12

x = 8

54 ÷ 6 = 9  The unit rate is 9 per hour

9x = 90  Divide both sides by 9

x = 10

Answer:

x = 31

Step-by-step explanation:

Distribute 2 to x which equals 2x, and 2 times 14 which equals 28, which gets you to 2x + 28 = 90, then subtract 28 from 90, which leads you to

2x =62, and the final step is to divide 2 from 62 which gets you 31.

The insurance policy's anticipated value is -$81 for the one year life insurance policy.

Consider the various factors and the man's potential benifits.

-$165 because he already paid that sum.

The beneficiary could earn as a potential profit.

140000-165 = $139835

The probability of surviving is 0.9994.

The likelihood of not living is 0.0006.

The expected value is given by;

E(v) = (-165)(0.9994) + (139835)(0.0006)

E(v) = -164.901 + 83.901

E(v) = -81.

Thus, the insurance policy's anticipated value is -$81.

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∠mkj angle is an adjacent interior angle to ∠jkm

Adjacent interior angles are two angles that share a common vertex and a common side. In the given angle ∠jkm, the common vertex is at point "k" and the common side is the line segment joining points "j" and "m". Therefore, the adjacent interior angle to ∠jkm is ∠mkj.

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Answer:

  y = 1/5x -11

Step-by-step explanation:

You want the slope-intercept equation of the line perpendicular to y=-5x+9 that goes through the point (20, -7).

The slope-intercept form of the equation for a line is ...

  y = mx +b . . . . . . . . where m is the slope and b is the y-intercept

This can be solved to find the y-intercept from a point on the line:

  b = y -mx

Comparing this form to the given equation, you see the given line has a slope of m = -5.

The perpendicular line will have a slope that is the opposite reciprocal of the slope of the given line:

  slope = -1/(-5) = 1/5

The y-intercept of the desired line can be found using the equation for b above. The y-intercept of the line with slope 1/5 through point (x, y) = (20, -7) is ...

  b = y -mx = (-7) -1/5(20) = -7 -4

  b = -11

Now, we have the slope and intercept of the desired line, so we can write its equation:

  y = 1/5x -11

The 95% confidence interval for the mean gas mileage for this car model is (26.26, 28.74) mi/gallon.

The confidence interval for a statistical data is written as-

(x+ zr/√n, x- zr/√n)

Here, we are given that-

Mean ⇒ x = 27.5 mi/gallon.

Standard deviation ⇒ r = 4 mi/gallon

Number of samples ⇒ n = 49

and Confidence interval = 95%

z-score at 95% confidence level = 2.17

Substituting the values we have;

= [27.5 - 2.17(4.0) /(√49),  27.5 + 2.17(4.0) /(√49)]

= (27.5 - 8.68 / 7,  27.5 + 8.68 / 7)

= (27.5 - 1.24,  27.5 + 1.24)

= ( 26.26, 28.74)

Therefore, the 95% confidence interval for the mean gas mileage for this car model is (26.26, 28.74) mi/gallon.

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Diego will have 74 pencils remaining after giving 14 pencils to Marcus and 32 pencils to Anna.

The question is about simple Subtraction. First, we know that the total number of colored pencils in the box is 120. Following is the step-by-step explanation for this question.
Let suppose,
Total Colored pencils = x = 120
Pencils given to Marcus = y = 14
Pencils are given to Anna = z = 34.

And, Total Pencil Remaining = R =?

We can show the given information in the equation as given below:
R = x - y - z

By putting the value in the above equation:
R  = 120 - 14 -34
R  = 74.

So, after giving the 14 and 32 pencils to Marcus and Anna, respectively. Marcus would remain with 74 Pencils.

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[9] Answer: x = 4

Step-by-step explanation:

     Both of these problems use triangle's exterior angles. We will set up an equation and solve. The two opposite angles are equal to opposite exterior angle. After writing our equation, we will solve and isolate the variable using inverse operations.

     17x + 1 + 18x + 3 = 144

     35x + 4 = 144

     35x = 140

     x = 4

[10] Answer: x = 3

Step-by-step explanation:

     Both of these problems use triangle's exterior angles. We will set up an equation and solve. The two opposite angles are equal to opposite exterior angle. After writing our equation, we will solve and isolate the variable using inverse operations.

     20x + 23x + 1 = 130

     43x + 1 = 130

     43x = 129

    x = 3

The radius is increasing fastly at a rate of 2.75 feet per second when it is already 30 feet.

Here, it has been told that the rate of change of the area with respect to the time is = 520 ft²/sec - (i)

This can also be written as = dA/dt (ii)

We need to find the rate of change of radius with respect to the time at 30 feet. This can be written as = dr/dt (iii)

We already know that the area of a circle can be found out using the formula = πr² (iv)

Differentiating equation (ii) with respect to time, we get -

= d(πr² )/dt

= π*(dr²/dt)

= π*(dr²/dr)*(dr/dt)

= π*(2r)*(dr/dt)

= dr/dt = (dA/dt)*(1/ π*2r)

Using the given values, we get -

= (dr/dt) = 520 / π*2*30ft

= (dr/dt) = 2.75 ft/sec

Henceforth, we find that the rate of change of the radius with respect to time at 30 feet is going to be 2.75 ft/sec.

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When the null hypothesis is rejected

The  conclusion is that there is enough evidence to support the claim of the researcher

When a type I error occurs. The consequences is that the conclusion that there is enough evidence to support the claim of the researcher is actually incorrect

When a type II error occurs. The consequences is  that the conclusion that there is enough evidence  to support the claim of the researcher is actually correct      

From the question we are told that,

Generally if the null hypothesis is rejected then the conclusion would be that there is enough evidence to support the claim of the researcher

Generally a Type I error is a an error that occurs when the null hypothesis is incorrectly rejected

So in the case of this question the consequence of making this type of error is that the conclusion that there is enough evidence to support the claim of the researcher is actually incorrect

Generally a Type II  error is an error that occurs when the null hypothesis is incorrectly not rejected

So in the case of this question the consequence of making this type of  

error is that the conclusion that there is enough evidence to support the claim of the researcher is actually correct.

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Answer:

CPCTC

Step-by-step explanation:

BD is perpendicular to AC, forming two right triangles. The hypotenuses are congruent, as is our leg that we will call b. If we use Law of Sines to find our angles a and c (no matter the values), we would find that because b is the same leg in both triangles and the hypotenuses are congruent, angles a and c are congruent, so therefore your missing angle in both triangles is congruent, and using a trig function will find that AD and CD are congruent, making all of both triangles congruent.

The predicted quantity of balls in the first bin is (1/n)n.

Considering that,

There are the same number of balls and containers.

If so, then each container must always contain one ball. The probability of each ball landing in the first bin is (1/n)n.

For instance -

Three balls and three bins should be present. Next to each ball, place an A, B, and C. There are numbers 1, 2, and 3 on the containers. Ball A has a 1/3 chance of landing in bin 1. Although there is a 1/3 probability that ball B will drop in bin 1 and a 1/3 chance that ball C will do the same, both outcomes are possible. Therefore, bin 1 should be equal to 1/3 + 1/3 + 1/3. The rationale behind the projected values of bins 2 and 3 is identical.

According to the same logic, bins 2 and 3 should also have expected values of 1.

How probable is it that the first bin will receive all three balls?

In general, (1/n)n, which equals (1/3)3, or 1/3 x 1/3 x 1/3, equals 1/27.

Therefore, (1/n)n would be the expected number of balls in the first bin.

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Answer: 40.24

Step-by-step explanation: Use the Pythagorean Theorem

a^2 + b^2 = [tex]\sqrt[2]{c}[/tex]

36^2 + 18^2 = [tex]\sqrt[2]{1620}[/tex]

1296 + 324 = 1620

[tex]\sqrt[2]{1620}[/tex] = 40.24

Answer:

Step-by-step explanation:

Siny= 4xy +x²

dy/dx(cos y) =4y+ 4x(dy/dx)+2x

making dy/dx the subject

dy/dx(cos y)-4x(dy/dx)=4y+2x

dy/dx(cos y -4x)=4y+2x

dy/dx=(4y+2x)/(cos y -4x)

The value of the solution is B i.e., his cumulative gpa (i), he ever performed before (ii)

The science of statistics focuses on creating and researching strategies for gathering, analyzing, interpreting, and presenting empirical data.

The two types of statistics are: Descriptive and inferential.

With the alternatives available, Johnny can only do worse if his performance falls short of both his lifetime GPA and his previous best performance. It's possible that the last scenario, in which Johnny performed worse than last semester, won't necessarily have an impact on his GPA. A cumulative GPA represents Johnny's overall GPA since he first began attending school. Considering that his most recent semester may have been one of his best and had a solid outcome, earning a result somewhat below that of his previous semester may not necessarily result in a drop in his cumulative GPA. Therefore, choice B is right.

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Answer:

i need points

Step-by-step explanation:

The rates of weekly earning would allow her to reach her goal will be 12x > 500.

Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.

Janet anticipates cutting yards for quite a long time in the late spring. Her objective for the late spring is to acquire more than $500.

Let 'x' be the weekly rate. Then the inequality is written as,

12x > 500

The rates of weekly earning would allow her to reach her goal will be 12x > 500.

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Answer:

there will be 3 carrots in each bag and you will have 2 carrots left over

Step-by-step explanation:

hope this helps

Jacob's smoking habit may shorten his life expectancy by an average of 10 years and 6 months.

Given,

The age of Jacob when he starts smoking  = 21 years

Jacob's present age = 48 years

In generally if 1 year of smoking reduces 6 months from the life.

Why does smoking cause life to be shorter?

Only a few of the illnesses that are directly linked to smoking and have a significant role in the increased mortality rate among smokers include cancer, lung disease, and cardiovascular disease. The link between smokeless tobacco and cancer is well known.

Here,

Jacob may live 10 years and 6 months less than normal due to his smoking habit.

I have answered the question in general as given question is incomplete.

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