An equation is shown:
0.35v+0.40v+1.2+0.05v=7.12

What is the value of v?

We would predict using the random sample that 175 students at the school like math.

A confidence interval is a range of values that, with a certain degree of certainty, is likely to contain the real value of a population parameter. In most cases, the level of confidence is stated as a percentage, such as 95% or 99%, and it indicates the likelihood that the parameter's actual value falls within the range. In statistics, confidence intervals are frequently used to calculate an estimate of a population parameter's value from a sample of data. A confidence interval, which offers a range of likely values for the population parameter, is constructed using the sample statistics and the variability of the data.

Given that, 14 out of 20 students like math.

Using proportions we have:

14/20 = 0.7.

Now for 250 students we have:

0.7 * 250 = 175

Hence, we would predict that 175 students at the school like math.

Learn more about confidence interval here:

https://brainly.com/question/24131141

#SPJ1

Step-by-step explanation:

-27 [tex]\sqrt{72}[/tex]  = -27 [tex]\sqrt{36*2}[/tex]  = -27 (6) [tex]\sqrt{2}[/tex]   =      - 162 [tex]\sqrt{2}[/tex]    =   - 229.1  

Thus, the value of x for the given angle of cyclic quadrilateral is found as the x = 50.

When you hear the word "cyclic," think of the two round wheels on you bicycle. A quadrilateral is a figure with four sides. The result is a cyclic quadrilateral, which is defined as any four-sided shape (quadrilateral) its four vertices (corners) are located on a circle.

A cyclic quadrilateral's opposite angles add up to 180 degrees, making them supplementary to one another.

Given data:

Using the property of cyclic quadrilateral: sum of opposite angle are 180 degrees.

∠T + ∠R = 180

x + 60 + x + 20 = 180

2x + 80 = 180

2x = 180 - 80

2x = 100

x = 50

Thus, the value of x for the given angle of cyclic quadrilateral is found as the x = 50.

Know more about the cyclic quadrilateral:

https://brainly.com/question/27585352

#SPJ1

Answer:

18

Step-by-step explanation:

Since it is an equilateral triangle AB=AC=5

If I sum up all sides u will get 18. How this helps.

Answer: Let's use the following variables to represent the unknown quantities in the problem:

x: the number of cupcakes purchased

y: the number of muffins purchased

From the problem statement, we can write two equations:

The total amount spent on cupcakes and muffins is $21.50:

2x + 1.25y = 21.50

The number of muffins purchased is one fewer than the number of cupcakes:

y = x - 1

These two equations form a system of equations that can be solved simultaneously to find the values of x and y.

Substituting equation 2 into equation 1, we get:

2x + 1.25(x - 1) = 21.50

Simplifying and solving for x:

2x + 1.25x - 1.25 = 21.50

3.25x = 22.75

x = 7

Now that we know x, we can use equation 2 to find y:

y = x - 1 = 7 - 1 = 6

Therefore, the customer purchased 7 cupcakes and 6 muffins, spending a total of $21.50.

Step-by-step explanation:

The minimum of the given expression can be found to be 3 x ∛(√2).

Use these inequalities to find the minimum of the given expression:

(a / (b + c)) + (b / (c + a)) + √(2c / (a + b)) ≥ (a / (√(bc))) + (b / (√(ac))) + √(2c / (√(ab)))

Now, simplify the expression:

(a / (√(bc))) + (b / (√(ac))) + √(2c / (√(ab))) = (√(a²/bc)) + (√(b²/ac)) + (√(2c²/ab))

Apply AM-GM inequality to the terms (√(a²/bc)), (√(b²/ac)), and (√(2c²/ab)):

AM = [(√(a²/bc)) + (√(b²/ac)) + (√(2c²/ab))] / 3 ≥ GM = ∛[(√(a²/bc)) * (√(b²/ac)) * (√(2c²/ab))]

The geometric mean (GM) is:

GM = ∛[(√(a²/bc)) x (√(b²/ac)) x (√(2c²/ab))]

GM = ∛(√(2a²b²c² / a²b²c²))

GM = ∛(√2)

Thus, the minimum of the given expression is:

= 3 x ∛(√2)

Find out more on minimum at https://brainly.com/question/30196594

#SPJ1

The probability that Julian will roll a 3 on the next roll is approximately 16.67%. The probability of rolling a 3 on a normal 6-sided die is independent of the previous rolls. This means that regardless of the outcomes of Julian's previous rolls, the probability remains the same.

Explanation

On a 6-sided die, there is 1 favorable outcome for rolling a 3 (the number 3 itself) out of 6 possible outcomes (1, 2, 3, 4, 5, and 6).

To find the probability, you can use the formula:

Probability = (Number of favorable outcomes) / (Total number of outcomes)

In this case:

Probability of rolling a 3 = 1 (favorable outcome) / 6 (total outcomes)

Probability of rolling a 3 = 1/6 ≈ 0.1667 or 16.67%

So, the probability that Julian will roll a 3 on the next roll is approximately 16.67%.

To learn more about probability : brainly.com/question/27292589

#SPJ11

Answer:your answer is 11

Step-by-step explanation:

The price of each book must be either $38.53 or $10.8 to generate a total sales revenue of $1,24,875.

If the prices of a book is $16 then 10000 copies will be sold.

For every dollar that increase in price, 300 books will not be sold.

So if the price of a book increases $x then the total price of sold books is given by,

y = (16 + x)*(10000-300x)

Now total sales revenue of the books is $124875, that is, y = 124875.

So, (16+x)*(10000-300x) = 124875

160000 + 10000x - 4800x - 300x² = 124875

35125 + 5200x - 300x² = 0

25 (1405 + 208x - 12x²) = 0

12x² - 208x - 1405 = 0

Solving the above quadratic equation we get,

x = 22.53 or x = -5.20 (Rounding to two decimal places)

So the amount will be either (16+22.53) = $38.53 or (16-5.20) = $ 10.8.

Hence the price must be either $38.53 or $10.8.

To know more about quadratic equation here

https://brainly.com/question/19922849

#SPJ4

The translation of the question is -

"If a publisher prices a book at $16, 10,000 copies will be sold. For every dollar that increases in price, 300 books will not be sold. What must be the price each book must sell for to generate a total sales revenue of $124,875?"

20% of the students surveyed did not choose soccer, football, or basketball as their favorite sport.

To find the percentage of students who did not choose soccer, football, or basketball as their favorite sport, we need to first find the total number of students who did not choose any of these sports.

Total number of students who chose soccer, football or basketball = 54 + 42 + 24 = 120

Number of students who did not choose any of these sports = 150 - 120 = 30

Therefore, the percentage of students who did not choose soccer, football or basketball as their favorite sport is:

(30/150) x 100% = 20%

So, 20% of the students surveyed did not choose soccer, football, or basketball as their favorite sport.

To know more about percentage, here

brainly.com/question/29306119

#SPJ4

--The complete Question is, Out of the 150 students surveyed, 54 chose soccer, 42 chose football, and 24 chose basketball. What percentage of the students surveyed did not choose soccer, football or basketball as their favorite sport? --

Check the picture below.

Therefore, 11 3/4 - 8 1/2 = 13/4, or 3 1/4 as a mixed number.

A mixed number is a type of number that represents a whole number and a fraction together. It is written in the form of a whole number followed by a fraction, such as 3 1/2. The whole number represents the number of whole units, while the fraction represents the part of a unit.

For example, the mixed number 3 1/2 can be interpreted as three whole units and one half of a unit. Another example of a mixed number is 2 3/4, which represents two whole units and three-quarters of a unit. Mixed numbers are commonly used in everyday life, such as in cooking and measuring, and in mathematical calculations involving fractions.

To subtract mixed numbers like these, we need to convert them to improper fractions first:

[tex]11 3/4 = (4 * 11 + 3)/4 = 47/4[/tex]

[tex]8 1/2 = (2 * 8 + 1)/2 = 17/2[/tex]

Now, we can subtract the fractions:

[tex]47/4 - 17/2[/tex]

To subtract these fractions, we need to find a common denominator. The least common multiple of 4 and 2 is 4 × 2 = 8. We can convert both fractions to have a denominator of 8:

[tex]47/4 = (47/4) * (2/2) = 94/8[/tex]

[tex]17/2 = (17/2) * (4/4) = 68/8[/tex]

Now, we can subtract the numerators:

[tex]94/8 - 68/8 = 26/8[/tex]

Finally, we can simplify the result by dividing both numerator and denominator by their greatest common factor, which is 2:

[tex]26/8 = (2 * 13)/(2 * 4) = 13/4[/tex]

To know more about common factor, visit:

https://brainly.com/question/30961988

#SPJ1

Shawna wants to make sure her three dogs are fed and cared for when she leaves town for the day. She intends to give each of her dogs 12 ounces of food to achieve this. She must therefore leave a total of 36 ounces of food (3 dogs x 12 ounces of food per dog). 36 ounces are equivalent to 2.25 pounds of food because 16 ounces make up one pound.

There are 0.75 pounds of food in each can of dog food. We must divide 2.25 by 0.75 to find the quantity of dog food Shawna should leave for her companion. 3 dog food cans are the end outcome.Shawna ought to give her buddy three cans of dog food so that she can feed her dogs.

Shawna may make sure her dogs have enough food and are well cared for while she is away by leaving adequate food for them. Shawna may put any fears or concerns about her pets' welfare to rest by leaving ample food and clear directions.

Learn more about fractions:

https://brainly.com/question/10354322

Answer: 5 m

Step-by-step explanation:

A radius is half of the diameter which is the black line. Hope this helps!

Answer:

The radius of the larger grass area is 5m

Step-by-step explanation:

d=2r

r=d/2

r=10/2

r=5m

Project management services refer to the professional assistance and support provided to organizations to plan, execute, and manage projects effectively. These services may include a range of activities, such as project planning, scheduling, budgeting, risk management, stakeholder management, quality assurance, and project reporting.

Project management services can be provided by both internal and external professionals. Internal project managers are employees of the organization who are responsible for managing projects within the company.

External project management services can be hired from consulting firms, specialized project management companies, or freelance professionals who work independently.

Project management services can help ensure that projects are delivered on time, within budget, and to the required quality standards.

Learn more about project on

https://brainly.com/question/16927451

#SPJ1

Explain project Management Services

The measure of angle B in the right-angled triangle ACB is 63 degrees.

What is a triangle ?

A triangle is a polygon with three sides, three vertices, and three angles. The sum of the interior angles of a triangle is always 180 degrees. Triangles can be classified based on their side lengths and angle measures.

In a right-angled triangle, the sum of the two acute angles is always equal to 90 degrees. Therefore, we can find the measure of angle B in the right-angled triangle ACB by subtracting the measure of angle A and the right angle from 90 degrees.

Given that [tex]\angle A = 27^\circ[/tex], we can find the measure of angle B as follows:

[tex]\angle B = 180^\circ - \angle A - \angle C[/tex]

Since the triangle is right-angled at C, we know that [tex]\angle C = 90^\circ[/tex]. Therefore, we can substitute the values of [tex]\angle A[/tex] and [tex]\angle C[/tex] in the equation above to get:

[tex]\angle B = 180^\circ - 27^\circ - 90^\circ[/tex]

Simplifying this expression, we get:

[tex]\angle B = 63^\circ[/tex]

Therefore, the measure of angle B in the right-angled triangle ACB is 63 degrees.

To learn more about polygon visit the link :
https://brainly.com/question/24464711

#SPJ1

Answer:

96

Step-by-step explanation:

The distance between points A and B is 2 units.

To find the distance between two points in a coordinate plane, we can use the distance formula:

distance = sqrt((x2 - x1)^2 + (y2 - y1)^2)

where (x1, y1) and (x2, y2) are the coordinates of the two points.

Using this formula, we can find the distance between points A (-3,1) and B(-1,1) as follows:

distance = sqrt((-1 - (-3))^2 + (1 - 1)^2)

distance = sqrt(2^2 + 0^2)

distance = sqrt(4)

distance = 2

Learn more about distance at

https://brainly.com/question/26550516

#SPJ1

95.61 degrees is equal to 95 degrees, 36 minutes, and 36 seconds or 95° 36' 36".

To convert decimal degrees to degrees, minutes, and seconds

The whole number of the decimal degree will be the degrees

Multiply the decimal part that remains by 60. The whole number of the result will be the minutes.

Multiply the decimal part that remains by 60. The resulting number will be the seconds.

So for 95.61 degrees

The whole number of 95.61 is 95 degrees.

Multiply 0.61 by 60 to get 36.6. The whole number of 36.6 is 36 minutes.

Multiply 0.6 by 60 to get 36 seconds.

Therefore, 95.61 degrees is equal to 95 degrees, 36 minutes, and 36 seconds.

In the format of degrees, minutes, and seconds: 95° 36' 36"

Learn more about decimal degrees here

brainly.com/question/31458768

#SPJ4

Answer:

Aiden should use the Standard unit of Mass

Kilogram.

Step-by-step explanation:

He can use other unit also like gram, pound, ounce, tone etc

The number of bags that have zips on them is 28.

To solve this problem, we can use the principle of inclusion-exclusion.

First, we know that the total number of bags is 110.

Next, we know that 24 of the bags have neither zips nor buttons. Therefore, the number of bags that have either zips or buttons is 110 - 24 = 86.

We also know that 32 of the bags have buttons but no zips, and 28 of the bags have zips but no buttons.

To find the number of bags that have both zips and buttons, we can subtract the number of bags that have only buttons from the total number of bags with zips, or vice versa:

Number of bags with both zips and buttons = (Number of bags with zips) + (Number of bags with buttons) - (Number of bags with either zips or buttons)

Number of bags with both zips and buttons = 28 + 32 - 86 = -26

This result is clearly nonsensical, so we can conclude that there are no bags with both zips and buttons.

Therefore, the number of bags that have zips on them is simply the number of bags with zips but no buttons, which is 28.

Learn more about principle of inclusion-exclusion here

brainly.com/question/27975057

#SPJ4

Answer:

a) model a: 50/hr

model b: 40/hr

b) model a

Step-by-step explanation:

b) since the money raised started at 0, the rate of change can be found by calculating 400/8

If Pamela has registered for the first time, it will remain on the Do Not Call list permanently. If she has re-registered, it will remain on the list for an additional five years from the date of re-registration.

The length of time that Pamela's phone number will remain on the National Do Not Call Registry depends on whether she registered her number on the Do Not Call Registry for the first time or if she has re-registered her number after it has already been on the list for a while.

If Pamela registered her phone number for the first time, it will be added to the Do Not Call Registry within 31 days of her registration date. Her phone number will remain on the list permanently, unless she requests to remove it or the number is disconnected.

If Pamela has re-registered her phone number after it has already been on the list for a while, her number's registration will be extended for another five years from the date she re-registered it.

Therefore, if Pamela registered her phone number for the first time, it will remain on the list permanently. If she has re-registered her number, it will remain on the list for an additional five years from the date of re-registration.

Learn more about do not call registry

brainly.com/question/30780624

#SPJ11

The function is a linear function because as x increases, the y-value changes at a constant rate . The rate of change of this equation is 2.

The difference between linear and exponential functions is that  Linear functions change at a constant rate per unit interval while an exponential function changes by a common ratio over equal intervals.

We are given the function table as:

(0, -3)

(1, -1)

(2, 1)

(3, 3)

Thus, we can see that as x increases, the y-value changes at a constant rate of  + 2.

Read more about Linear Functions at: https://brainly.com/question/15602982

#SPJ1

Sally would have invested $1150 initially in the savings account to satisfy the conditions in the question.

A savings account is a type of bank account that helps people save money over time. It offers a safe and secure way to store money while earning interest on the balance. Unlike checking accounts, savings accounts are intended for long-term storage of funds, with a higher interest rate and regular compounding to help the balance grow. Savings accounts offer flexibility in terms of access to funds and usually allow withdrawals at any time with limits on the number of withdrawals without incurring a fee.

To determine how much money Sally initially invested in a savings account that earns 7.2% annual simple interest, we can use the formula for simple interest: I = Prt. Here, I represents the interest earned, P is the initial principal, r is the annual interest rate as a decimal, and t is the time in years.

Given that Sally earned $745.20 in interest over a period of 9 years with an annual interest rate of 7.2%, we can substitute the values into the formula and solve for P:

I = $745.20

r = 7.2% = 0.072 (decimal)

t = 9 years

Now, P = I / (rt)

P = 745.20 / (0.072 * 9)

P = $1150

Therefore, Sally initially invested $1150 in the savings account.

To know more about savings account visit:

brainly.com/question/10777478

#SPJ1

The number of balls that must be selected to ensure that 4 balls of the same color are chosen is 10 balls.

To ensure that 4 balls of the same color are chosen, we must consider the worst-case scenario where we select 3 balls of each color before selecting the fourth ball. Therefore, the minimum number of balls that must be selected is:

= 3 (red balls) + 3 (blue balls) + 3 (yellow balls) + 1 (any color)

= 10 balls.

Therefore, we must select at least 10 balls to ensure that 4 balls of the same color are chosen.

To know more about balls

https://brainly.com/question/19930452

#SPJ4

the probability of a customer choosing a Ribeye, well done or medium with corn is [tex]1[/tex] out of [tex]12[/tex], which is answer B [tex]- 1/12[/tex] Thus, option B is correct.

There are two possible steaks that a customer can choose from, and for each steak, there are three possible ways to cook it: rare, medium, or well-done. Additionally, there are two possible sides to choose from: corn or some other option.

Thus, there are a total of   [tex]2 \times 3 \times 2 = 12[/tex] possible meal combinations that a customer can choose from.

Out of these 12 possibilities, there is only one way to get a Ribeye cooked well-done or medium with corn, since there is only one Ribeye option on the menu.

Therefore, the probability of a customer choosing a Ribeye, well done or medium with corn is 1 out of 12, which is answer B- 1/12

Learn more about probability here:

https://brainly.com/question/30034780

#SPJ1

Answer:

The answer is Rises 12F

Step-by-step explanation:

-12 degrees is 12 below zero. To reach zero, you have to go up an equal amount. -12 + 12 = 0