75=n+12 what is the full problem and check your answers with simplifacation

The probability that a randomly selected dinner bill will be at least $39.10 is approximately 0.0322.

a. The random variable in this case is the amount of money spent on dinner bills in the local restaurant on a daily basis.

b. To find the probability that a randomly selected bill will be at least $39.10 To do this, we can use the formula  z = (x - μ) / σ

Where

Substituting the values, we get:

z = (39.10 - 28) / 6

z = 1.85

We need to find the probability of getting a z-score of 1.85

The probability can be determined by using a conventional normal distribution table and is as follows:

P(z > 1.85) = 1 - P(z < 1.85) = 1 - 0.9678 = 0.0322

Therefore, the probability that a randomly selected dinner bill will be at least $39.10 is approximately 0.0322.

Learn more about standard normal distribution here : brainly.com/question/26678388

#SPJ1

The result of the given expression as a decimal is - 0.2

Decimals are values containing decimal points. Given the expression below;

-1.56 divide by 7.8

This can also be expressed as:

-1.56/7.8

Convert to fraction

-156/100 ÷78/10
-156/100 * 10/78

-2/10

Hence the result of the given expression as a decimal is - 0.2

Learn more on division of decimal here: https://brainly.com/question/3004071

#SPJ1

The expected value of sales at a price of $1 is 11.015 for the given regression demand equation.

In the regression demand equation e(log(sales | price)) = 11.015 - 2.442 log(price), you want to find the expected value of sales at a price of $1. To find the expected value of sales, you need to substitute the given price of $1 into the equation and solve for the sales. Substituting the price of $1 into the equation, you get: e(log(sales | 1)) = 11.015 - 2.442 log(1). Since log(1) = 0, the equation simplifies to: e(log(sales | 1)) = 11.015 - 2.442 * 0, e(log(sales | 1)) = 11.015
Therefore, the expected value of sales at a price of $1 is 11.015.

To know more about regression equation: https://brainly.com/question/25987747

#SPJ11

Step-by-step explanation:

You need to times it, so 150 x 30, and then whatever it is, thata the answer

Answer:19.625in

Step-by-step explanation:

Answer: 19.625 inches is the answer

Step-by-step explanation:

The least possible positive integer value of n is 18.

Zero, a positive natural number, or a negative integer with a minus sign are all examples of integers. The additive inverses of the positive numbers are the negative numbers.

let x denote the number of adults. since the no. of adults is equal to the no. of children we can say that,

a single bench can hold either 7 adults or 11 children, so

\(N = \frac{x}{7} + \frac{x}{11}\)

\(N = \frac{18x}{77}\)

according to the question both N and x have to be positive integers, therefore x has to be equal to 77. and therefore N = 18.

know more about integers here: https://brainly.com/question/15276410

#SPJ4

The functions y=x²+3 is quadratic function because the function has a degree 2.

y=4ˣ-5 is a exponential function because the x is the exponential form.

y=9 is a linear function because the function is in linear.

And

y=(x+1)(x-2) is quadratic function because the function has a degree 2.

Given that,

The functions are y=x²+3, y=4ˣ-5, y=9 and y=(x+1)(x-2)

We have to find which of the functions are linear, quadratic and exponential.

We know that,

The core of calculus in mathematics is the concept of functions. The unique types of relations are the ones with functions. In mathematics, a function is represented as a rule that produces a distinct result for each input x. In mathematics, the terms "mapping" or "transformation" refer to functions.

So,

y=x²+3 is quadratic function because the function has a degree 2.

y=4ˣ-5 is a exponential function because the x is the exponential form.

y=9 is a linear function because the function is in linear.

And

y=(x+1)(x-2) is quadratic function because the function has a degree 2.

To learn more about function visit: https://brainly.com/question/12934295

#SPJ1

The derivative of f(x) = 1/x is  \(f'(x) = -x^{(-2)\)  which can be differentiated using the power rule for derivatives.

The function f(x) = 1/x can be differentiated using the power rule for derivatives. The power rule states that if \(f(x) = x^n\) , then

\(f'(x) = n*x^{(n-1)\)

In this case, we have f(x) = 1/x, which can be written as \(x^{(-1)\) . Using the power rule, we get:

\(f'(x) = (-1) * x^{(-1-1)} = -x^{(-2)\)

So the derivative of f(x) = 1/x is  \(f'(x) = -x^{(-2)\) .

This means that the slope of the tangent line to the graph of f(x) at any point x is equal to \(-1/x^2\) . The derivative tells us how the function is changing at any given point, and it is a fundamental concept in calculus and related fields.

Learn more about power rule :

https://brainly.com/question/23418174

#SPJ4

The greatest common factor and distributive property required to calculate (27 + 36) are represented by the expression 9 (3+ 4)..

A mathematical expression is a phrase with a minimum of two numbers or variables and at least one mathematical operation. This mathematical operation may be addition, subtraction, multiplication, or division.

as stated in the query,

the following expression equals:

(27 + 36)

The following expression illustrates the distributive property and the largest common factor:

factors of

\(27 = 3 X3 X3\\36 = 2 X 2 X 3 X3\\Greatest common factor of 27 and 36 = 3 X 3 = 9\)

\(Now,\\(27 + 36 )\\= (3 X 3 X3 + 2 X 2 X 3 X 3 )\\= 9 ( 3 + 4)\\Distributive property present multiplication over addition\\A(B+C) = AB + AC\)

As a result, the phrase used to calculate (27 + 36)'s largest common factor and distributive property is 9 (3 + 4).

To know more about expressions visit:

https://brainly.com/question/14083225

#SPJ4

The conditional probability that the size of the family is less than 6 given that it is at least 3 is 1.

To find the conditional probability that the size of the family is less than 6 given that it is at least 3, we need to use the formula for conditional probability.

Let's denote A as the event that the size of the family is less than 6, and B as the event that the size of the family is at least 3.

The conditional probability of A given B, denoted as P(A|B), is calculated as follows:

P(A|B) = P(A and B) / P(B)

First, we need to find P(B), the probability that the size of the family is at least 3. Since the family is selected at random, we can assume that all possible family sizes have an equal chance of being selected.

Let's assume the total number of possible family sizes is n. The probability of selecting a family with at least 3 members is the sum of the probabilities of selecting a family with exactly 3 members, exactly 4 members, and exactly 5 members.

P(B) = P(3) + P(4) + P(5)

Next, we need to find P(A and B), the probability that the size of the family is both less than 6 and at least 3. Since any family size less than 6 is also at least 3, P(A and B) will be the same as P(B).

Finally, we can substitute the values into the formula for conditional probability:

P(A|B) = P(A and B) / P(B) = P(B) / P(B) = 1

Therefore, the conditional probability that the size of the family is less than 6 given that it is at least 3 is 1.

To know more about conditional probability  refer here:

https://brainly.com/question/10567654

#SPJ11

Answer:

200% 0f 40 is 80

Step-by-step explanation:

90  is the average score of these top students.

What is the average in mathematics?

Mean is defined as the average equal to the ratio of the total number of values ​​in a particular set to the total number of values ​​in the set.

                               The average in mathematics is the average of a data set obtained by adding all the numbers and dividing the sum of the numbers by the number of numbers. For example, using the following dataset:

8, 9, 5, 6, 7, 8 + 9 + 5 + 6 + 7 = 35, 35/5 = 7, so the average is 7. 

the average score of these top students = 95 + 86 +  87 +  91 + 94 + 87/6

                                                              = 540/6 = 90

Learn more about average

brainly.com/question/24057012

#SPJ1

Answer: Tim weighs 90 lbs and his brother weighs 130 lbs

The total number of samples will be 1109 .

Given ,

Margin of error 0.02

Here,

According to the formula,

\(Z_{\alpha /2} \sqrt{pq/n}\)

Here,

p = proportions of scientist that are left handed

p = 0.09

n = number of sample to be taken

Substitute the values,

\(Z_{0.01} \sqrt{0.09 * 0.91/n} = 0.02\\ 2.33 \sqrt{0.09 * 0.91/n} = 0.02\\\\\\\)

n ≈1109

Thus the number of samples to be taken will be approximately 1109 .

Know more about proportions,

https://brainly.com/question/31548894

#SPJ4

Answer:

What is the question?

I can't see any question.

To enhance Bob's credibility in his blog post about the new mixed-media artist, he should be sure to include the artist's background, relevant experience, and accomplishments. Bob should be sure to include a long answer that covers several important aspects of the artist and the upcoming show.

Firstly, Bob should provide some background information about the artist, including their previous exhibitions and any awards or recognition they have received. This will demonstrate that Bob has done his research and that the artist is well-respected in the art world.
Secondly, Bob should describe the style and technique of the mixed-media art that will be on display at his gallery. This will show that he has a deep understanding of the artwork and is able to provide valuable insight to his readers.
Thirdly, Bob should discuss the significance of the upcoming show and why it is important for art lovers and collectors to attend. This will demonstrate that he is not just promoting the artist for the sake of making sales, but rather that he genuinely believes in the quality and value of the artwork.
Finally, Bob should include some personal commentary about his own experience working with the artist and organizing the show. This will give his readers a sense of his expertise and professionalism in the art world.

To know more about mixed-media visit :-

https://brainly.com/question/8951055

#SPJ11

Answer: 25

Step-by-step explanation:

28+97=125

125/4= 31.25

25/4=6.25

31.25-6.25=25

The time taken by the planes when they are 2000 miles apart is 2 hours.

We all know that formula of distance, speed and time is given by  distance = speed*time or time = distance/speed

Let x be the number of hours that the two planes will be 2000 miles apart.

Let 430x be the distance traveled by the first plane at 430 miles per hour

and 570x be the distance traveled by the second plane at 570 miles per hour.

here, 430x +570x =2000 is the total distance travelled by the first plane and the second plane

Solving yields the following steps:

1000x = 2000

Dividing 1000 to both sides of the above equation, we get

1000x/1000=2000/1000

So the value of x will be equivalent to 2

For more questions on distance, speed and  time click on:

https://brainly.in/question/49075584

#SPJ4

Answer:

Step-by-step explanation:

3 x 4= 12 -5 = 7 + 4 = 11

The area of the rectangular arena can be represented as A = (8y2 - 18y) square feet.

Here, we are given the dimensions of a rectangular arena, which are as follows-

Length = 4y - 9 feet

width = 2y feet

The area of a rectangle is given by the formula-

Area of a rectangle = length x breadth

Thus, in this case, area (A) can be calculated as follows

A = (4y - 9) * 2y

Now, we simplify the equation-

A = (4y)(2y) - 9(2y)

A = 8\(y^{2}\) - 18y

Thus, the area of the rectangular arena can be represented by the following equation- A = (8\(y^{2}\) - 18y) square feet.

Learn more about area here-

brainly.com/question/25292087

#SPJ9

Answer:

The answer is x = 5 square root of 27

Step-by-step explanation:

3x^5 = 81

3x^5 / 3 = 81 / 3

x^5 = 27

So the answer is x = 5 square root of 27

The parameterized surface given by 7(u, v) = (vcosu, vsinu, 4v) for 0 ≤u≤π and 0 ≤v≤3 represents a portion of a helical surface.

It is a helix that spirals around the z-axis with a radius of v and extends vertically along the z-axis with a height of 4v. The parameter u determines the angle at which the helix wraps around the z-axis, while the parameter v determines the height of the helix.

The parameterized surface given by 7(u, v) = (u, v, 2u+ 3v-1) for 1 ≤u≤ 3 and 2 ≤ v≤ 4 represents a tilted plane in three-dimensional space. It is a plane that is slanted in the direction of both the x-axis and the y-axis.

The parameters u and v determine the coordinates of points on the plane, with u controlling the position along the x-axis and v controlling the position along the y-axis. The equation 2u+ 3v-1 determines the height or z-coordinate of each point on the plane.

Learn more about parametric surfaces here: brainly.com/question/32623162

#SPJ11

Answer:

5 feet 4.4 inches tall

Step-by-step explanation:

Answer: The answer is 1

It is 1

Step-by-step explanation:

Answer:

A.9x – 13.2

Step-by-step explanation:

2*(3.5x-7+x+0.4)=2*(4.5x-6.6)=9x-13.2

Answer:

It is A

Step-by-step explanation:

Answer:x= -47

Step-by-step explanation:

-14x-45=613

-14x = 658

x = -47

Answer:

x= -47 i'm sure i did it right but tripple check it for me

Step-by-step explanation:

add 45 to both sides

divide both sides by -14

x= -47

The correct option is C. Connect every intersection of an arc and the circle with a segment.

When constructing an inscribed regular hexagon, the steps come after six arcs are created on the circle is connect every intersection of an arc and the circle with a segment.

A hexagon is a two-dimensional geometric shapes shape with six sides that have the same or different length dimensions. A hexagonal flooring, pencil cross-section, honeycomb, and other real time of the hexagon shape include.

Some key features related to regular hexagon are-

To know more about the regular hexagon, here

https://brainly.com/question/15424654

#SPJ4

It is the location of the center of an equal distance point traced from the center. A circle's radius is the distance among its center and its circumference.

When building an engraved regular hexagon.

Following the creation of six arcs on the circle, the following steps will be taken.

A segment should be connected to every intersection of an arc and a circle.

The correct question is -

When constructing an inscribed regular hexagon, what steps come after six arcs are created on the circle?

A. Connect every other intersection of an arc and the circle with a segment. B. Connect the intersections of the diameters and the circle with a segment.

C. Connect every intersection of an arc and the circle with a segment.

D. Connect the midpoint of the radius to the endpoint of the diameter.

Answer: (C) Connect every intersection of an arc and the circle with a segment.

Step-by-step explanation: butter