suppose that mean retail price per gallon of regular grade gasoline is with a standard deviation of and that the retail price per gallon has a bell-shaped distribution. note: please use empirical rule approximations for this problem.

Answers

Answer 1

68.26 % of regular gasoline sold between $ 3.25 & $ 3.65.

What do you mean by the term standard deviation?

The term "standard deviation" (or "") refers to a measurement of the data's dispersion from the mean. A low standard deviation implies that the data are grouped around the mean, whereas a large standard deviation shows that the data are more dispersed. In contrast, a high or low standard deviation indicates that the data points are, respectively, above or below the mean. A standard deviation that is close to zero implies that the data points are close to the mean. the curve at the top is more dispersed and has a greater standard deviation than the curve at the bottom, which is more concentrated around the mean and has a lower standard deviation.

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Related Questions

HELP PLEASE(7th grade)

HELP PLEASE(7th grade)

Answers

!! for 2 and 3 these values are rounded

1) 693.5/18,250 = .038 x 100% = 3.8% commission

2) ~118.5%  --- divide tip/meal then x 100%

3) ~21.33%   divide sale price/over org., then subtract by 100%

distance from the origin formula (bc why not?)

Answers

The formula for the distance from the origin is distance = √(x² + y²)

In this case, the hypotenuse is the distance from the origin to the point (x, y), and the other two sides are the horizontal distance from the origin to the point, which is x, and the vertical distance from the origin to the point, which is y. Therefore, the distance from the origin to the point (x, y) is given by the following formula:

distance = √(x² + y²)

This formula is also known as the distance formula or the Pythagorean distance formula. It can be used to find the distance between any two points in a two-dimensional coordinate system.

The distance from the origin can also be expressed in terms of polar coordinates, which are a different way of describing points in a two-dimensional space.

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Help me, witch are the true!!!?

Help me, witch are the true!!!?

Answers

Answer:

A is the answer hope this helps

You want your daily sodium intake to be less than 2300 milligrams. For breakfast, you eat a cereal bar with the nutrition label shown. What are the possible amounts of sodium you can eat during the rest of the day? Nutrition Facts Serving Size Servings Per Container Amount Per Serving Calories 120 Total Fat 3g 1 Bar (37g) Calories from Fat 30 % Daily Value* 5% 3% Saturated Fat 0.5g Trans Fat Og Cholesterol Omg Sodium 125mg 0% 5% The possible amounts of sodium you can eat during the rest of the day should be less than mg​

Answers

Subtracting the maximum sodium intake from the intake of the cereal bar, you can eat amounts of sodium less than 2,175 mg of sodium the rest of the day.

How to find the amount of sodium you can eat during the rest of the day?

From the text, the intake has to be less than 2300 mg. From the table, each cereal bar has 125 mg of sodium.

You eat one cereal bar, hence the remaining amount you can eat is found as follows:

2300 - 125 = 2,175.

You can eat amounts of sodium less than 2,175 mg of sodium the rest of the day.

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Ivanna needs to buy some pencils. Brand A has a pack of 36 pencils for 8.52 . Brand B has a pack of 48 pencils for 9.98 . Find the unit price for each brand. Then state which brand is the better buy based on the unit price. Round your answers to the nearest cent.

Answers

Answer:

Brand B is better

Step-by-step explanation:

Brand A's unit price is $0.24

Brand B's unit price is $0.21

PLEASE ANSWER ASAP FOR BRAINLIEST!!!!!!!

PLEASE ANSWER ASAP FOR BRAINLIEST!!!!!!!

Answers

Answer:

2144.66

Step-by-step explanation:

V = 4/3 π r^3

Answer:2144.66

Step-by-step explanation:

formula for volume of a sphere- v=4/3 pi r^3

v=4/3 pi 8^3

V= 4/3 pi 512

v=2048pi

v=2144.66

Follow the steps to find the product of and 0.55.
Estimate the product of and 0.55.
1/4-
Convert the decimal 0.55 to a fraction.
V55/100
What is the product of the two numbers?
X 110/150 or 11/15
110/300 or 11/30
77/103

Answers

1) Estimate value of the product of 2/3 and 0.55 is, 2/3.

2) The fraction part is, 55 / 100

3) The product of the two numbers is, 11/30

We have to given that,

Estimate the product of 2/3 and 0.55.

And, Convert the decimal 0.55 to a fraction.

And, The product of the two numbers.

Now,

Estimate the product of 2/3 and 0.55,

So, we can round 0.55 to the nearest whole number, which is 1.

Then, multiply 2/3 by 1 to get an estimate of the product.

so, The correct answer is 2/3.

Now, we can convert the decimal 0.55 to a fraction,

= 0.55

= 55/100

= 11/20

Thus,  The correct answer is, 55/100.

And,  the product of 2/3 and 0.55,

= 2/3 x 55/100

= 110/300

= 11/30.

Hence, The correct answer is, 110/300 or 11/30

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can someone help me with this question the letter a b or c or d

can someone help me with this question the letter a b or c or d

Answers

Answer:

The answer is D

Step-by-step explanation:

because u need to divide the y and x and when u do it to all of them u will get the same ratio which is 4

A town hosts an Arbor Day celebration. Each of the 105 families attending gets to choose a sapling to take home as they leave. Michelle and Ari each design surveys in order to determine the average height of the saplings. Michelle samples the first 20 families leaving the celebration. Ari samples every fifth family leaving the celebration. Which best explains which student’s sample is likely to produce more valid results?

Answers

Answer:

michelles

Step-by-step explanation: hope you get it right have a great day and may i have brainlyest

Answer:A - Michelle’s because she sampled the saplings of every family in her group

Step-by-step explanation:Edge2021 just finished :)

Please help me! It’s due soon

Please help me! Its due soon

Answers

Answer:

<1= 135 degrees

<4= 135 degrees

<6= 45 degrees

Step-by-step explanation:

This is because angle two and 6 are corresponding angles. you would then subtract 180 from 45 because angle 6 and 4 are consecutive angles. This would give you 135 degrees. Then angle 1 and angle 4 are verticla agles, making them equal to each other.

1= 135
3= 45
6= 45
3 and 6 are congruent/equal to angle 2, so they’d measure the same. since 1 and 3 are on the same line and that line equals 180 degrees, i did 180-45 to get angle 1.

Solve for the measure of arc KM.

Solve for the measure of arc KM.

Answers

Answer:

The measure of an angle formed by two secants intersecting outside a circle is equal to one-half the difference of the measures of the intercepted arcs.

50° = (1/2)(162° - KM)

100° = 162° - KM

KM = 62°

Which answer best describes the system of equations shown in the graph?



A. Consistent and dependent

B. Inconsistent

C. Not enough information

D. Consistent and independent

Thanks.

Which answer best describes the system of equations shown in the graph?A. Consistent and dependentB.

Answers

Answer:

A. Consistent and dependent

Answer:

D. Consistent and independent

Step-by-step explanation:

A. Consistent and dependent = two lines that overlap with each other so they have infinite solutions (ex. y = 4x and 4y = 16x equal the same thing)

B. Inconsistent = parallel lines that will NEVER meet each other, so no solution (y = 4x and y = 4x + 1 have the same slope so the steepness of the two lines is the same - they will NEVER have at least 1 point intersecting)

C. Not enough information - incorrect because there are two lines on a graph, and that is enough info to solve

D. Consistent and independent = two lines with EXACTLY ONE SOLUTION (ex. y = 4x + 3 and y = 2x + 2 have exactly one point that overlaps)

a car leaves a stoplight and accelerates 15 seconds, and its speed reaches 60 km/hr. how fast did this car accelerate during this time?

Answers

Correct me if I’m wrong but isn’t it 0.25km

Justify the last two steps of the proof please!

Justify the last two steps of the proof please!

Answers

The justification for the third step of the proof as given in the task content is; Reflexive property of ~; SSS.

The justification for the fourth step of the proof as required is; Symmetric Property of ~; SSS.

Triangle congruence theorems.

Recall that the; Reflexive Property as used in mathematical operations is such that: x = x. Therefore, the length of line segment ST and the length of line segment TS are equal and the segments are congruent.

Also, it follows from the task content that ∆RST ~ ∆UTS which means that both triangles are congruent by the Symmetric Property of SSS.

Ultimately, the justification for steps 3 and 4 are therefore, Reflexive Property of mathematical operations and the Symmetric property of SSS respectively.

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A man sold a shop and a terrace house for RM 240 000 each and sustained a loss of 25% for selling the shop and earned a profit of 25% from the terrace house. Find the amount of profit or loss.​

Answers

Answer:

The amount for loss would be RM 600 and the amount for profit would be RM 600.

Step-by-step explanation:

Loss percent

25=loss/CP *100

25/100=L/CP *100

25/100=100L/240,000

10000L/10000=240,000*25/10000

L=24*25

L=RM 600

Profit percent

25/100=P/240,000 *100

25/100= 100P/240000

10000P/10000=240000*25/10000

P=RM 600

Answer:

Step-by-step explanation:

RM (⁠≧⁠▽⁠≦⁠)

PLEASE HELP I AM BEING TIMED!!

Find the sum of the measure of the interior angles for the following regular polygon?

A: 1440
B:2340
C:2160
D:1080

PLEASE HELP I AM BEING TIMED!!Find the sum of the measure of the interior angles for the following regular

Answers

Answer:

1080 is the answer.

Step-by-step explanation:

Under his cell phone plan, Angel pays a flat cost of $35 per month and $5 per gigabyte. He wants to keep his bill under $50 per month. Write and solve an inequality which can be used to determine x, the number of gigabytes Angel can use while staying within his budget.​

Answers

Answer:

4 gigabytes

Step-by-step explanation:

$55-$35 =$20

Under $55 = less than (<) $55

According to given question we have,

$35 + $5 × g < 55

35 + 5g < 55

compare like terms and simplify we get,

5g < 55 - 35

5g < 20

g < 20/5

g < 4 gigabytes

Inequality: 5x + 35 <50

Answer: x < 3

Can someone help me out with this question, please!?!?!

Paula rents a gaming console for a flat fee of $50 plus an additional $6.25 per day she keeps the console. Choose the cost function that represents this scenario if x equals the number of days Paula has the console.
A: c(x) = 50x + 6.25
B: c(x) = 56.25
C: c(x) = 50 + 6.25x
D: c(x) = (50 + 6.25)x

Answers

It would be D, because they both depend on x.

If the sum of an infinite geometric series is \( \frac{15625}{24} \) and the common ratio is \( \frac{1}{25} \), determine the first term. Select one: a. 625 b. 3125 c. 25 d. 125

Answers

The first term of the infinite geometric series is 625.Let's dive deeper into the explanation.

We are given that the sum of the infinite geometric series is \(\( \frac{15625}{24} \)\)and the common ratio is\(\( \frac{1}{25} \).\)The formula for the sum of an infinite geometric series is \(\( S = \frac{a}{1 - r} \)\), where \( a \) is the first term and \( r \) is the common ratio.
Substituting the given values into the formula, we have \(\( \frac{15625}{24} = \frac{a}{1 - \frac{1}{25}} \).\)To find the value of \( a \), we need to isolate it on one side of the equation.
To do this, we can simplify the denominator on the right-hand side.\(\( 1 - \frac{1}{25} = \frac{25}{25} - \frac{1}{25} = \frac{24}{25} \).\)
Now, we have \(\( \frac{15625}{24} = \frac{a}{\frac{24}{25}} \).\) To divide by a fraction, we multiply by its reciprocal. So, we can rewrite the equation as \( \frac{15625}{24} \times\(\frac{25}{24} = a \).\)
Simplifying the right-hand side of the equation, we get \(\( \frac{625}{1} = a \).\)Therefore, the first term of the infinite geometric series is 625.
In conclusion, the first term of the given infinite geometric series is 625, which corresponds to option (a).



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HELP ASAP PLS! THIS IS KINDA TOUGH!

HELP ASAP PLS! THIS IS KINDA TOUGH!

Answers

Answer:

Do as a which is c if I'm not than rost me

Step-by-step explanation:

Please help!!!

The cost of staying at an airbnb is given by the formula C = 119d + 20 Where C is the cost in dollars and D is the number of days a person stays. Use the formula to find the cost of staying for 1 Week.

Answers

Answer:

C = 853

Step-by-step explanation:

One week = 7 days

C = 119d + 20

C = 119(7) + 20

C = 833 + 20

C = 853

when applying the clt to define an interval within which we expect 95% of all sample means to fall we would use a z

Answers

The resulting interval will contain 95% of all sample means. In conclusion, the interval value is 1.96.

When applying the Central Limit Theorem (CLT) to define an interval within which we expect 95% of all sample means to fall, we would use a z-value of 1.96. This is because 95% of the area under a normal distribution curve falls within 1.96 standard deviations of the mean. Therefore, using a z-value of 1.96 will give us an interval that contains 95% of all sample means.

Identify the desired confidence level. In this case, it is 95%.

Find the corresponding z-value for the desired confidence level. For a 95% confidence level, the z-value is 1.96.

Use the z-value and the standard deviation of the sample means to calculate the interval. The formula for the interval is:

mean ± (z-value)(standard deviation)

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What are the absolute Maximum and Minimum of f(t) = 7 cos t, −3π/2 ≤ t ≤ 3π/2?

Answers

The absolute Maximum of  f(t) = 7 cos t, −3π/2 ≤ t ≤ 3π/2 is 7 and the absolute Minimum of f(t) = 7 cos t, −3π/2 ≤ t ≤ 3π/2 is -7.

The function f(t) = 7 cos(t) has a period of 2π, which means that it repeats itself every 2π units. In the given interval, the function takes its maximum and minimum values at the endpoints of the interval and at the critical points where the derivative of the function is zero.

The critical points of f(t) in the interval −3π/2 ≤ t ≤ 3π/2 are t = −π/2, π/2, and 3π/2, where the derivative of the function f(t) is zero:

f'(t) = -7 sin(t) = 0

This occurs when sin(t) = 0, which implies that t = −π/2, π/2, and 3π/2.

Therefore, the absolute maximum and minimum of f(t) occur at the endpoints of the interval and the critical points, and are as follows:

Absolute maximum: f(π/2) = 7

Absolute minimum: f(−3π/2) = -7

So, the absolute maximum value of f(t) is 7, which occurs at t = π/2, and the absolute minimum value of f(t) is -7, which occurs at t = −3π/2.

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Solve and find the value of X : −0.17=(x−390)/390+7.2/390 [enter your answer with 3 decimals]

Answers

The value of x is approximately 369.186.

To solve the equation -0.17 = (x - 390) / 390 + 7.2 / 390 for x, we can simplify the equation and isolate x.

Given:

-0.17 = (x - 390) / 390 + 7.2 / 390

First, let's simplify the right side of the equation by finding a common denominator:

-0.17 = (x - 390 + 7.2) / 390

Combine like terms:

-0.17 = (x - 382.8) / 390

Multiply both sides of the equation by 390 to eliminate the fraction:

-0.17 * 390 = x - 382.8

-66.3 = x - 382.8

Add 382.8 to both sides of the equation:

-66.3 + 382.8 = x

316.5 = x

Therefore, the value of x is approximately 316.5 (rounded to three decimal places).

Note: There seems to be an error in the given equation. The correct equation should be -0.17 = (x - 390) / 390 + 7.2 / 390, not -0.17 = (x - 390) / 390 + 7.2 / 390.

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Rachel works at a bookstore. On Tuesday, she sold twice as many books as she did on Monday. On Wednesday, she
sold 6 fewer books than she did on Tuesday. During the three days Rachel sold 19 books. Create an equation that can
be used to find m, the number of books Rachel sold on Monday.
Equation:

Answers

Answer:

Step-by-step explanation: so tuesday she sells x2 then m so thats 2m solve that then -6 =19

x2 2m salve that then -6=19

use the truth tables method to determine whether (p q) (q → r p) (p r) is satisfiable

Answers

We can see that the expression (p q) (q → r p) (p r) is true only for the first combination of truth values (p=T, q=T, r=T).

How to use the truth table method?

To use the truth table method, we need to list all possible combinations of truth values for p, q, and r and then evaluate the expression (p q) (q → r p) (p r) for each combination.

If we find at least one combination that makes the expression true, then the expression is satisfiable; otherwise, it is unsatisfiable.

Let's start by listing all possible combinations of truth values for p, q, and r:

p | q | r

--+---+--

T | T | T

T | T | F

T | F | T

T | F | F

F | T | T

F | T | F

F | F | T

F | F | F

Next, we evaluate the expression (p q) (q → r p) (p r) for each combination of truth values:

p | q | r | (p q) (q → r p) (p r)

--+---+---+-----------------------

T | T | T |       T

T | T | F |       F

T | F | T |       F

T | F | F |       F

F | T | T |       F

F | T | F |       F

F | F | T |       F

F | F | F |       F

We can see that the expression (p q) (q → r p) (p r) is true only for the first combination of truth values (p=T, q=T, r=T). Therefore, the expression is satisfiable.

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cori races her friend heading south for 9 kilometers, east for 20 kilometers, then south for 6 more kilometers. how far is cori from where she started?

Answers

The required distance of Cori from where he started is 35km.

What is meant by distance?

Distance is a quantitative or qualitative measurement of the distance between two objects or places. Distance can refer to a physical length or an estimation based on other criteria in physics or everyday usage. Because spatial cognition is a rich source of conceptual metaphors in human thought, the term is also used metaphorically to mean a measurement of the amount of difference between two similar objects or a degree of separation. The concept of a metric space is used to codify most such conceptions of distance, both physical and metaphorical.

Given,

Cori races her friend heading south for 9 kilometers, east for 20 kilometers, then south for 6 more kilometers.

The distance of Cori from starting point=9+20+6

=15+20

=35

Hence, the required distance of Cori from where he started is 35km.

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Which value is 10 times the value of 18,000

Answers

Answer:

180000

Step-by-step explanation:

18000 i think tell me of im wrong

Allie and Ezra are sitting on flagpoles, throwing beanbags at each other. Allie's flagpole is $35$ feet tall. Ezra's flagpole is $27$ feet tall. The flagpoles stand $15$ feet apart. How far, in feet, does Ezra have to throw a beanbag to reach Allie

Answers

Ezra has to throw a beanbag 17 feet far to reach Allie

According to the question,

The distance between Allie and Ezra's flagpoles is 15 feet

length of Allie's flagpole = 35 feet

length of Ezra's flagpole = 27 feet

Difference between Allie and Ezra's flagpole = (35 - 27) feet

= 8 feet

Now, there forms a right angled triangle, where hypotenuse is the distance that Ezra's bean bad has to cover.

Using Pythagoras theorem,

\(H^{2} = B^{2} + A^{2}\)

where H = hypotenuse,

B= Base of the triangle

A = Altitude of the triangle

we are given,

B = 15 feet,

A = 8 feet

On substituting the values,

\(H^{2} = 15^{2} + 8^{2}\)

\(H^{2} = 225 + 64\\H^{2} = 289\\H = \sqrt{289} \\H = 17\\\)

So hypotenuse = 17 feet

Ezra has to throw the beanbag 17 feet far in order to reach it to Allie.

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I need help with these pls!

I need help with these pls!

Answers

5. 24 hours over 7 days (Because 1 day = 4 hrs)

6. 16 limes over 2 bags (1 bag = 8 limes)

7. 54 cups over 9 boxes (6 cups = 1 box)

8. 27 meters (or minutes) over 3 seconds (9 meters over 1 second)

9. 36 lbs over $24 ($1 = 1.5lbs)

Image down below with steps
I need help with these pls!
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