A movie theatre marks up the price of popcorn 12 3/4 times the original cost. express 12 3/4 as a percent and decimal.

​

Answer: D

Step-by-step explanation:

Answer:

I believe the answer is C

Step-by-step explanation:

If i understand the question right it is saying that X and Y are varying the same aka increasing the same so i think it is C.

Answer:

|n - 1| + 1 = 0

|n - 1| = -1

no solution

A person's cardiovascular fitness, age, weight, gender, and the severity of the activity performed may all play a role in how fast a person attains steady-state and fully recovers. When an individual is fit, they tend to have a lower resting heart rate than an unfit person. Furthermore, a fit person's heart rate is less likely to climb to high levels during activity, and their muscles are more efficient, requiring less oxygen to function. Finally, fit people tend to have better cardiovascular health and are more capable of removing waste products from their muscles, allowing for a quicker recovery time.

RQ stands for respiratory quotient and represents the ratio of carbon dioxide produced to oxygen consumed. During exercise, RQ rises because the body is using more carbohydrates than fats to generate energy, which increases carbon dioxide production. During the recovery period, RQ decreases as the body switches back to using fat as its primary energy source and oxygen consumption increases.The graph/plot of RQ as a function of time during rest, physical activity, and recovery phases should show a steady increase during physical activity and a decline during recovery. This variation makes sense because during exercise, the body's demand for energy increases, and RQ increases as a result. Conversely, during recovery, the body switches back to using fat as its primary energy source, resulting in a decrease in RQ.

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Answer:

there is no answer, absolute value always > 0

Answer:

2/4 ÷ 2 = 2/4 × 1/2 = 2/8 = 1/4

or you can directly write 2/4÷2 = 1/4

Answer:

you will have to pay 427.75 cents.

Step-by-step explanation:

Multiply 7.25 by 59.

If the data shows that overweight children do not suffer from diabetes as predicted by your model, indicating a lower than 80% probability, it suggests that there may be a discrepancy between the model's predictions and the actual observations. In this case, your next step would be to reevaluate and potentially revise your model.

Here are some possible steps to consider:

1. Review the data: Double-check the accuracy and reliability of the data used to validate your model. Ensure that the data is representative, comprehensive, and properly collected.

2. Analyze potential errors: Look for potential errors or biases in the data collection, analysis, or interpretation process. Consider factors such as sample size, sampling method, data collection methods, or any confounding variables that may have affected the results.

3. Assess model assumptions: Review the assumptions made in developing the model and determine if any of them may have been invalid or inappropriate for the specific context or population under study. Adjust the model if necessary to better align with the observed data.

4. Consider additional variables: Examine if there are any other relevant variables that were not initially included in the model but may influence the relationship between child obesity and diabetes. Incorporating additional variables or adjusting the existing ones might lead to a more accurate model.

5. Seek expert opinions: Consult with experts or researchers in the field of child obesity and diabetes to gain insights and validate your findings. They may provide guidance on potential factors or mechanisms that could explain the discrepancy between the model and the observed data.

6. Further data collection: If necessary, consider collecting additional data to refine and improve the model. This could involve expanding the sample size, targeting specific subgroups, or collecting more detailed information on relevant variables.

7. Model refinement or reconstruction: Based on the findings from the above steps, refine or reconstruct the model to better capture the relationship between child obesity and diabetes. This may involve modifying the assumptions, incorporating new variables, or applying alternative modeling techniques.

8. Test and validate the revised model: After making revisions, test the updated model using independent data sets or conducting further studies to validate its accuracy and reliability.

Remember, the scientific process often involves iteration and continuous improvement. If the initial model does not align with the observed data, it is essential to critically evaluate the model and make necessary adjustments to improve its accuracy and usefulness.

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Answer:

x = 10

Step-by-step explanation:

7(x - 6) = 28

Expand the equation:

7x - (7 x 6) = 28

7x - 42 = 28

Move x-term to one side, numbers to the other side:

7x = 28 + 42

7x = 70

x = 70/7

x = 10

The value of x will be; x = 10

An equation is an expression that shows the relationship between two or more numbers and variables.

We are given that the equation

7(x - 6) = 28

Expand the equation:

7x - (7 x 6) = 28

7x - 42 = 28

Now Move x-term to one side, numbers to the other side:

7x = 28 + 42

7x = 70

x = 70/7

x = 10

The value of x will be; x = 10

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Answer:

Step-by-step explanation:

Take the natural logarithm of both sides of the equation to remove the variable from the exponent.

ln

(

6

x

)

=

ln

(

66

)

Expand

ln

(

6

x

)

by moving

x

outside the logarithm.

x

ln

(

6

)

=

ln

(

66

)

Divide each term by

ln

(

6

)

and simplify.

Tap for more steps...

x

=

ln

(

66

)

ln

(

6

)

The result can be shown in multiple forms.

Exact Form:

x

=

ln

(

66

)

ln

(

6

)

Decimal Form:

x

=

2.33829083

…

Answer:

X=19

Step-by-step explanation:

A full line must be 180 degrees and you already know that part of the line is 66 degrees. You do 180 minus 66 which gives you 114. That is the other unknown angle but it is asking for x, not the angle. You do 114 divided by 6 to get 19. Therefore, x=19.

Answer:

Therefore, option A,B and C cannot be the angles of triangles.

Step-by-step explanation:

Given that total angles in a triangle is 180° so you have to add up all the angles :

Option A,

45° + 45° + 45° = 135° (Not a triangle)

Option B,

60° + 75° + 35° = 170° (Not a triangle)

Option C,

60.5° + 59.5° + 59° = 179° (Not a triangle)

Option C,

65° + 60° + 55° = 180° (It is triangle)

Answer:

Step-by-step explanation:

The fastest way to find the missing endpoint is to determine the distance from the known endpoint to the midpoint and then performing the same transformation on the midpoint. In this case, the x-coordinate moves from 4 to 2, or down by 2, so the new x-coordinate must be 2-2 = 0.

Answer:

  see attached

Step-by-step explanation:

To find the inverse function, solve ...

  x = f(y)

  x = (y^7)/7 -4 . . . . . . . use the definition of f(x)

  x +4 = (y^7)/7 . . . . . . add 4

  7(x +4) = y^7 . . . . . . multiply by 7

  (7(x +4))^(1/7) = y . . take the 7th root

The inverse function is the one shown in the attachment.

Answer:

The y-intercept is -6.

Step-by-step explanation:

Step-by-step explanation:

large is 3 times larger than medium.

2 1/4 × 3 = 6 3/4

large is 6 times larger than small.

1 1/8 × 6 = 6 6/8 = 6 3/4

medium is 2 times larger than small.

1 1/8 × 2 = 2 2/8 = 2 1/4

Answer:

\(-14x^2+4x-17\)

Step-by-step explanation:

\((-4x^2 + 7x-8)-(10x^2 + 3x +9)\\\\=-4x^2 + 7x-8-10x^2-3x-9\\\\=-14x^2+4x-17\)

The subtraction -4x^2 + 7x-8 from 10x^2 + 3x +9 gives 14x^2 - 4x + 17.

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers constants, variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbol: which can also be used to indicate the logical syntax's order of operations and other features.

We have to subtract -4x^2 + 7x-8 from 10x^2 + 3x +9. so first we need to distribute the negative in bracket then combine the like terms and solve for it;

\(10x^2 + 3x +9 - ( -4x^2 + 7x-8 )\\\\10x^2 + 3x +9 + 4x^2 - 7x+ 8 \\\\14x^{2} -4x + 17\)

Therefore, the subtraction -4x^2 + 7x-8 from 10x^2 + 3x +9 gives 14x^2 - 4x + 17.

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The equation of the perpendicular bisector of the line is  y = 2x +16

Slope of a line is defined as the ratio of the "vertical change" to the "horizontal change" between (any) two distinct points on a line.01 It can also be expressed as a quotient ("rise")

1) the slope (m) = (change in y)/ change in x

m = (6-2)/ 7+3 = 4/10 = 2/5

b) the slope of the perpendicular is given by  m₁*m₂ = -1

m₂ = -1/m₁

m₂ = -1 ÷2/5 = -5/2

c) the mid point of the ordered pair is (y₁+y₂)/2 and (x₁+x₂)/2

[(7+3)/2,  (6-2)/2]

[10/2 , 4/2 ]

(5,2)

d) equation of the perpendicular is given by

m = (y - y₁)/ (x - x₁)

m( (x - x₁) =  (y - y₁)

By substitution we have

2/5(x +3) = y-2

2x + 6 = y - 10

Making y the subject we have

Therefore, y = 2x +16

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Answer:

18x10^-2

Step-by-step explanation:

Answer:

1234567890ooppplpppll

Answer:

3x+7

Step-by-step explanation:

Use long division or synthetic division. (3x^2+13x+14)/(x+2)

The length of the rectangular garden is 3x + 7

The given expression:

\(A = 3x^2 + 13x + 14\)

the width of the garden = x + 2

let the length of the garden = y

To find:

The area of the rectangular garden is calculated as;

\(A = y(x + 2) = 3x^2 + 13x + 14\\\\y(x + 2) = 3x^2 + 13x + 14\\\\y = \frac{3x^2 + 13x + 14}{x + 2}\)

Using long division method:

                         3x + 7

                    ------------------------------

        x + 2 √ 3x² + 13x + 14

                  - (3x² + 6x)

                   -------------------------

                              7x + 14

                            - (7x + 14)

                  -------------------------------

                                0

Thus, the length of the rectangular garden, y = 3x + 7

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The type of sampling described in the scenario is known as systematic sampling.

Systematic sampling involves selecting elements from a population in a systematic and predetermined manner. In this case, the researcher is selecting every 20th name from the student directory to form her sample. This method of sampling is relatively simple to execute and can be less time-consuming compared to other methods such as random sampling. However, it is important to ensure that the selected interval does not coincide with any underlying patterns in the population that may bias the results.

Overall, systematic sampling can be a useful method for obtaining a representative sample from a large population, but it is important to consider the potential limitations and biases associated with this approach.

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Answer:

Step-by-step explanation:

we can use tan=opp/adj

tan=10/40=1/4=0.25

arctan 0.25=14.036 degrees

In a simple linear regression model, the coefficient of the independent variable (x) in the estimated sample regression equation indicates the change in the predicted value of the dependent variable (y) when x increases by one unit. This coefficient is also known as the slope of the regression line. Therefore, to calculate the predicted value of y, we multiply the coefficient by the value of x and add the intercept.

In a simple linear regression model, the coefficient that indicates the change in the predicted value of y when x increases by one unit is the "slope coefficient" or the "regression coefficient" (usually denoted as b1). This coefficient represents the relationship between the independent variable x and the dependent variable y.

The linear regression equation is given as:

y = b0 + b1 * x

Where:
- y is the predicted value of the dependent variable
- b0 is the intercept coefficient (where the line intersects the y-axis)
- b1 is the slope coefficient (the change in y when x increases by one unit)
- x is the independent variable

In this equation, b1 indicates the change in the predicted value of y when x increases by one unit.

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Answer:

Step-by-step explanation:

The average age of 18 girls is 12.

Total age of girls:

The average age of 15 boys is 17

Total age of boys:

Total age of children:

Total number of children:

Average age of children:

Answer:

  69 miles

Step-by-step explanation:

Put the number in place of the variable representing it and do the arithmetic.

  L = 41 +28 = 69

After 28 days, the length of the road is 69 miles.

The equation of the line would be y = (-3/4)x + 5.

What is the slope-point form of the line?

For the line having slope "m" and the point (x1, y1) the equation of the line passing through the point (x1, y1) having slope 'm' would be

                      y - y1 = m(x - x1)

The given equation is \(y=-\frac{3}{4}x-17\)

The required line is parallel to the given line.

and we know that the slopes of the parallel lines are equal so the slope of the required line would be m = -3/4

And the required line passes through (8, -1)

so by using slope - point form of the line,

      y - (-1) = (-3/4)(x - 8)

      y + 1 = (-3/4)x - (-3/4)8

       y + 1 = (-3/4)x + 24/4

       y = (-3/4)x + (12/2 - 1)

       y = (-3/4)x + 5

Hence, the equation of the line would be y = (-3/4)x + 5.

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Based on mathematical operations, since the cookies Raina wants for a party comes in packs of 6 and she needs 23 of these for the party, she should buy 4 packs.

The basic mathematical operations include addition, subtraction, multiplication, and division.

In this situation, we can determine the number of packs required by finding a number that when multiplied by 6 will be close to 23.

We know that 6 x 4 equals 24, which is the closest value to 23.

The number of cookies in each pack = 6

The total number of cookies Raina needs = 23

The number of packs to buy = 4 (6 x 4 = 24)

Thus, Raina needs to buy 4 packs of the cookies to satisfy her requirement for 23 pieces.

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Subtract the $60 out of the total first

250 - 60 = 190

Divide this value by pay per sale:

190 / 4.50 = 42.2222

Thus, they must make 43 sales in order to meet the goal

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