M
6x-18
3x
J
B
K
Find the value of x

Answer:

2=3408493-=2=9

Step-by-step explanation:

The question is incomplete. The complete question is :

Basil was shown this enlargement, and he was asked to find the perimeter of the enlarged shape. His work is shown below.

Where, if any, did Basil first make a mistake in his work?

Solution :

Not -- Basil did not make any mistakes in his work. He found out the perimeter of an enlarged shape.

Perimeter is the total measure of the outer lining or the total outer length of the body or the shape. For different shapes, the perimeters will be different. Basil measure the outer length of the body and found out the perimeter.  

Answer:

C

Step-by-step explanation:

Answer:

Each will receive \(\frac{1}{6}th\) of the cake.

Step-by-step explanation:

Let the amount of cake = c

Lisa, Juan and Isaac are the persons who are sharing half of a cake equally.

Number of persons = 3

Part of the cake shared = \(\frac{c}{2}\)

Fraction of the cake shared by each = \(\frac{\text{Amount of cake shared}}{\text{Number of persons who shared}}\)

                                                             = \(\frac{\frac{1}{2}c}{3}\)

                                                             = \(\frac{1}{6}c\)

Therefore, fraction of total cake shared by each member will be \(\frac{1}{6}\) of the total amount of cake.

Answer:

-440

Step-by-step explanation:

hope this helps

have a good day

Answer:

-440

Step-by-step explanation:

X = 6

because 8 - 2 = 6

Answer:

Step-by-step explanation:

The domain of a function is all the allowed x values that make the function defined. There is nothing to make this function undefined. So the domain is negative infinity to positive infinity. All those x values are in the domain. In order to show your work, just show yourself plugging in those numbers.

You get 9, 0, and 1

Answer:

All of them are in domain

Step-by-step explanation:

a. Drive Co.'s revenue function R(X) = (-x^2/5)-247x.

b. The price per drive when revenue is maximized is $370.6.

c. The maximum profit made from the sale of these drives if Drive Co. incurs production costs of $179 per drive and has fixed costs of $250 is $6030.

What is a function?

The characteristic that every input is associated to exactly one output defines a function as a relationship between a set of inputs and a set of allowable outputs.

Drive Co. sells portable 905 hard drives when the price is $66/drive and can sell 800 hard drives when the price is $87/drive.

Let p be the price of hard drive and x be the number of hard drives.

When x = 905, then p = 66.

So, (x1,p1) = (905,66)

Similarly, when x = 800, then p = 87.

So, (x2,p2) = (800,87)

So, the equation of line between x and p is given as -

p-p1=[(p2-p1)/(x2-x1)}(x-x1)

Plugging in the values -

p-66=[(87-66)/(800-905)](x-905)

p-66=(21/-105)(x-905)

-105p+6930=21x-19005

-105p-21x=-19005-6930

-105p-21x=-25935

p=(-21x/105)-247

p=(-x/5)-247

So, the price function p(x) = (-x/5)-247.

Now, derive the revenue function -

Revenue = Number of drives × price per drive

Revenue = x · p(x)

Revenue = x · (-x/5)-247

Revenue = (-x^2/5)-247x

Therefore, the revenue function R(x) = (-x^2/5)-247x.

For maximum revenue -

dR/dx = R'(x) = 0 and R''(x)<0

dR/dx = -2x/5-247 = 0

-2x/5 = 247

x = -1235/2

x = -617.5

Therefore, the number of drives at maximum revenue is 618 drives.

The price per drive is -

p(618) = {-618/5}-247

p(618) = -370.6

Therefore, the price per drive is $370.6.

Now, the profit S(x) = Revenue R(x) - Total Cost C(x)

C(x) = fixed cost + variable cost

Variable cost = number of drives × price per drive

C(x) = 250 + 179x

Substituting the values -

S(x) = [(-x^2/5)-247x] - [250+179x]

S(x) = (-x^2/5)-68x-250

In order to get maximum profit differentiate the equation and equate it to 0.

dS/dx = 0

dS/dx = -2x/5-68 = 0

-2x/5 = 68

x = 340/-2

x = -170

d^2S/dx^2 = -2/5<0

So, maximum profit will be at x = 170.

S max = S(170) = [(170)^2 /5] - 68 (170) - 250

= 5780 - 11560 - 250

= -6030

Therefore, the maximum profit earned is $6030.

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Answer:

Step-by-step explanation:

The ratio of nickels to dimes to quarters is given as ...

  N : D : Q = 6 : 1 : 4

The total number of ratio units is 6 +1 +4 = 11. The total number of coins is given as 99, so each "ratio unit" must represent 99/11 = 9 coins. That is, the actual coin count ratios are ...

  N : D : Q = 54 : 9 : 36

Zachary has 54 nickels, 9 dimes, and 36 quarters.

__

Check

The value of the coins is ...

  $0.05 × 54 +$0.10 × 9 +$0.25 ×36 = $2.70 +0.90 + 9.00 = $12.60

The median is the value located in the middle or the middle value, in order to find it, first, we have to order the set of numbers like this:

76, 78, 83, 87, 90, 90.

When the number of values is an even number, we just have to take the two values in the middle, sum them up and divide the result by 2, like this:

in this case, the middle values are 83 and 87

Then, the median score equals 85

The polynomial which is not equivalent to (5x – 2)(-2x + 4) is -10x + 20x + 4x – 8 and is therefore denoted as option A.

This is referred to as a type of algebraic expression in which the exponents of all variables should be a whole number.

(5x – 2)(-2x + 4) when expanded will give:

-10x² + 20x + 4x – 8 which can be rewritten as the following below:

This is therefore the reason why -10x + 20x + 4x – 8 was chosen as the correct choice.

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The options are:

A) -10x + 20x + 4x – 8

B) 4x + 20x – 10x2 – 8

C) -8 + 24x – 10x2

D) -10x2 + 24x – 8

All of the criteria's are fulfilled the survey is valid.

We have the information from the question:

The proportion of college football players who have had at least one concussion is estimated to be 34% in the united states.

Then, 34% = 0.34

The sample size of the data is = 100

p: the ‘proportion’ of ‘college’

The required conditions for testing the hypothesis of population proportion are,

(i) The population is larger than the sample

(ii) np > 10

=> 100 × 0.34

      =34

(iii) n(1-p) > 10

100 × (1 - 0.34)

=> 100 × 0.66

      =66

iv)The ‘sample’ is drawn randomly from the population.

Since all of the above criteria's are fulfilled the survey is valid.

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The posterior distribution of the parameter θ, given the observed data and the prior distribution, can be found using Bayes' theorem. In this case, with a continuous prior distribution and a sample size of 10, the posterior distribution of θ can be calculated. The Bayes estimate of θ under squared loss and absolute loss functions can be computed, and a two-sided 90% posterior probability interval for θ can be constructed.

To find the posterior distribution of the parameter θ, we can use Bayes' theorem, which states that the posterior distribution is proportional to the product of the likelihood function and the prior distribution. The likelihood function is obtained from the given probability density function fx(x; θ) and the observed data. Using the observed data, the likelihood function is calculated as the product of the individual densities evaluated at each observed value.

Once the posterior distribution is obtained, the Bayes estimate of θ under squared loss can be computed by taking the expected value of the posterior distribution. Similarly, the Bayes estimate under absolute loss can be computed by taking the median of the posterior distribution.

To construct a two-sided 90% posterior probability interval for θ, we need to find the values of θ that enclose 90% of the posterior probability. This can be done by determining the lower and upper quantiles of the posterior distribution such that the probability of θ being outside this interval is 0.05 on each tail.

In summary, by applying Bayes' theorem, the posterior distribution of θ can be found. From this distribution, the Bayes estimates under squared loss and absolute loss functions can be computed, and a two-sided 90% posterior probability interval for θ can be constructed. These calculations provide a comprehensive understanding of the parameter estimation and uncertainty associated with the given data and prior distribution.

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The definition of a regression equation is an equation used to assess whether a relationship exists between two sets of data.

What is the regression equation?

In statistics, a regression equation is used to determine whether or not there is a link between two sets of data. For instance, you might discover that a child grows roughly 3 inches a year if you measure their height each year. A regression equation can be used to model the three-inch growth tendency. In reality, most aspects of the real world—from gas prices to hurricanes—can be described using an equation of some form, which enables us to foretell the future.

The "best fit" line for your data is a regression line. In essence, you design a line that most accurately depicts the data points. It resembles the average of the points' locations. The regression line in a linear regression is a completely straight line:

An equation is used to express the regression line. The formula in this instance is 2.2923x + 4624. The line would be a rough approximation of your data if you plotted the equation -2.2923x + 4624.4.

It is unusual for all of the data points to actually lie on the regression line. The dots in the image above are a little dispersed around the line. The dots in the following picture are on the line. Polynomial regression, which fits the points to a polynomial equation, produced the curved curvature of this line.

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Answer:

• 85% protein supplement: 480 pounds

• 60% protein ration: 720 pounds

Explanation:

Let the number of pounds of 85% protein supplement required = x

The farmer wants to make 1200 pounds (of a high-grade 70% protein ration).

Therefore, the number of pounds of 60% protein ration required = (1200-x) lbs

First, we add the constituents we are mixing together.

The final protein ration we want to obtain:

Equate both:

Then solve the equation for x.

The number of pounds of the 85% protein supplement he should use is 480 pounds.

The number of pounds of the 60% protein ration he should use is 720 pounds.

Ideal group size is 5 to 7 members, for work, social, and academic groups. Optimal interaction, decision-making, problem-solving, and logistics are possible, with reduced conflicts and power struggles.

The ideal group size is a topic that has been widely studied by communication researchers. While there is no universally agreed-upon answer, many researchers suggest that a group size of 5 to 7 members is optimal for a range of different types of groups, including work teams, social groups, and academic groups. One reason why this group size is considered ideal is that it allows for optimal interaction and participation. In small groups, each member has a greater opportunity to speak and be heard, and there is less likelihood of individuals being drowned out or overlooked. This can lead to more productive and satisfying group interactions, as well as increased engagement and motivation among group members.

Another reason why a group size of 5 to 7 members is preferred is that it allows for effective decision-making and problem-solving. In larger groups, it can be difficult to achieve consensus or to reach a decision that reflects the needs and perspectives of all members. Conversely, groups that are too small may lack diversity of thought and expertise, which can limit the range of possible solutions or approaches to a problem.

In addition to these benefits, a group size of 5 to 7 members may also be more manageable in terms of logistics and group dynamics. For example, it may be easier to schedule meetings and coordinate group activities with a smaller group, and there may be less potential for conflicts or power struggles to arise among members.

It's worth noting that while a group size of 5 to 7 members is often recommended, there are certainly situations in which larger or smaller groups may be appropriate or necessary. For example, certain types of projects or initiatives may require a larger pool of resources or expertise, while others may benefit from a more intimate and tightly-knit group dynamic. Nonetheless, the research suggests that a group size of 5 to 7 members is a good starting point for most types of groups.

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Answer: 39,900

Step-by-step explanation:

      To round to the nearest hundred, we will look at the tens place. If it is at or above 5, we will round up. If it is 4 or below, we will stay the same.

\(39,9\boxed{4}4\), 4 < 5, so we round 39,944 to 39,900

Answer:

To find the unit price, divide the total cost by the number of bars.

Option 1

$6.75 ÷ 10 = $0.675

                 = $0.68 (nearest cent)

Option 2

$7.25 ÷ 12 = $0.6041666666...

                 = $0.60 (nearest cent)

#1

1 candy bar:-

#2

1candy bar for

The grouping symbols commonly used in mathematics are the following:

Now, According to the question:

What are the 4 types of grouping symbols?

The grouping symbols commonly used in mathematics are the following:

The order of operations is a rule that tells the correct sequence of steps for evaluating a math expression. We can remember the order using PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

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Answer:

1+. -1 is 0. a

Step-by-step explanation:

Ii I'm god uhh

Answer:

-8m

Step-by-step explanation:

Answer:

7m³

Step-by-step explanation:

the answer is 7m³

- - =+

-5m+-2=7m²

7m²+-m=7m³

Answer:

In 11/20, 11/100, and 11/15, the numerator is 11.

In 6/11, the denominator is 11.

Answer:

x = 2, y = -2

Step-by-step explanation:

Subtracting the 2 equations:

(x+10y)-(x-y) = -18-4

x + 10y - x + y = -22

11y = -22

y = -2

Substituting the y-value into 'x-y=4':

x + 2 = 4

x = 2

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Answer:

1/12 a cup

Step-by-step explanation:

1/3*1/4=1/12

Answer:

1/12

Step-by-step explanation:

1/3*1/4=1/12

The missing number of points scored in the last basketball game is 13.

What is the meaning of the data set?

A data set is a grouping of data. A data set refers to one or more database tables in the case of tabular data, where each column of a table represents a specific variable and each row corresponds to a specific record of the data set in question.

Given that,

the number of points scored in the last basketball game by each player on the Dragons basketball team are 7, 5,8,11,7,5,?.

Assume that the missing point is x.

The sum of points is 7+5+8+11+7+5+x = 43 + x.

The number of points is 7.

The mean is the sum of points/number of points

= (43+x)/7

Given that the mean of the data set is 8 points.

Therefore,

(43+x)/7 = 8

Multiply both sides by 7:

43+x = 8×7

43 + x = 56

x = 56 - 43

x = 13

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The area of rectangle DEFG is 16 square units and its perimeter is 12 units.

To find the area, we can use the formula: Area = length x width We can find the length and width by calculating the distance between the coordinates of opposite sides of the rectangle.

Length = EF =

\( \sqrt{} ((2-1)^2 + (1-3)^2)\)

=

\( \sqrt{} (2 + 4) = \sqrt{} (6)\)

Width = DG =

\( \sqrt{} ((-3+2)^2 + (1+1)^2) = \sqrt{} (2 + 4) = \sqrt{} (6)\)

The area of rectangle DEFG = length x width =

\( \sqrt{} (6) x \sqrt{} (6)\)

= 6 x 2 = 16 square units.

To find the perimeter, we can add up the lengths of all four sides: Perimeter = DE + EF + FG + GD

DE =

\( \sqrt{} ((1+3)^2 + (-3+(-1))^2) = \sqrt{} (16 + 4) = \sqrt{} (20)\)

EF =

\( \sqrt{} ((2-1)^2 + (1-3)^2) = \sqrt{} (2 + 4) = \sqrt{} (6)\)

FG =

\( \sqrt{} ((2+2)^2 + (1+1)^2) = \sqrt{} (16 + 4) = \sqrt{} (20)\)

GD =

\( \sqrt{} ((-2+3)^2 + (-1-1)^2) = \sqrt{} (1 + 4) = \sqrt{} (5)\)

The perimeter of rectangle DEFG =

\( \sqrt{} (20) + \sqrt{} (6) + \sqrt{} (20) + \sqrt{} (5) \)= 12 units.

Hence, The area of the rectangle is 16 square units and the perimeter is 12 units.

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Answer:

Step-by-step explanation:

WX length = Square root 13                                                                                             Slope of WX=-2/3 or -2 divided by 3                                                                  YZ length= Square root 13                                                                                  Slope for YZ= 2 divided by -3 or 2/-3                                                                              Part C should be A since parallel means that they have the same slope and they are congruent side lengths so, hopefully im right? Theorem 7.12 proves it

The correct answer is Beta. In this case, it is more important to make the Beta error as low as possible.

This is due to the Beta error being a false negative, which would suggest that the lead levels did not go above the permitted limit even though they did.

As a result, the park would continue to be open and the general public would be exposed to a potentially dangerous situation.

On the other side, a false positive (also known as an Alpha error) would cause the park to be closed without a need and would prevent the public from accessing a secure park.

Making the Beta error as small as feasible is therefore more crucial in order to protect the public from unwarranted dangers.

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Step-by-step explanation:

$300 * 3/4 = $225

Therefore Lily took $225.

Answer:

Answer: 252.77 g of potassium nitrateExplanation:2.50 mol KNO3 x __101.108 g__ = 252.77 g of KNO3 1 mol KNO3.

Answer:

252.77 g

Step-by-step explanation: