8.At Quin's Grocery Store the demand for ground beef is 50 lbs per week when the
price is $4 per lb, but is only 40 lbs per week when the price rises to $5.50 per lb. Find
the demand function and use it to predict the demand when the price rises to $5.80

The car travels 234 miles in 4 hours and 30 minutes at an average speed of 52 mph.

To find the distance traveled, we can use the formula:

distance = speed x time

Where speed is given as 52 mph, and time is 4.5 hours.

So, the distance traveled is:

distance = 52 mph x 4.5 hours

Evaluate the products

distance = 234 miles

Hence, the car travels for a total of 234 miles for 4.5 hours

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Answer:

do it on a calculater

Step-by-step explanation:

but it equels  2 and 22║27

Answer:

I guess the answer is 5 and 8

Answer:

I think answer is 5 and 8

P-value of less than 0.05 is typically considered statistically significant, indicating that the relationship between the variables in the regression equation is unlikely to be due to chance.

To find the p-value for the regression equation that fits the given data, you would need to conduct a regression analysis. This involves analyzing the relationship between the variables in the data set and determining whether there is a statistically significant relationship. Unfortunately, the data set you provided does not have any indication of what the variables are or what the regression equation is, so it is impossible to provide a specific answer to your question.
However, if you do conduct a regression analysis and obtain a p-value, you would round your answer to four decimal places as requested in the question. The p-value is a decimal value that represents the probability of obtaining the observed results if the null hypothesis is true. Based on the data provided, we first need to calculate the regression equation. However, the data seems to be presented in an unclear format. Please provide the data as pairs of x and y values, like this: (x1, y1), (x2, y2), (x3, y3), and so on. Once you provide the data in this format, I'll be happy to help you find the p-value for the regression equation, rounded to four decimal places.

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Answer:

B- hope this helps:)

Step-by-step explanation:

The total cost to paint 864.5 square feet of wall is $2,048.87.

It is given that the cost to paint one square foot of wall is $2.37.

We are asked to find the total cost to paint 864.5 square feet of wall.

If we have a number that has a decimal point then we have two parts.

The whole number part and the fractional part.

After the decimal point, we will count the place value as tenths, hundredths, thousandths, and so on.

You can also see the given figure below.

We know that,

One square foot = $2.37.

Remember that Feet is the plural form of the foot.

We can write,

864.5 square feet = 864.5 x  one square foot

Because in 864.5 square feet we have 864.5 one square foot.

And since one square foot cost $2.37.

864.5 square feet will cost 864.5 x 2.37 dollars.

Now,

864.5 x 2.37 = $2048.865.

Rounding to the nearest hundredth.

6 is in the hundredth place so we will round 86 to 87 since the number in the thousandth place is greater than 4.

Thus the total cost to paint a wall of 864.5 square feet is $2,048.87.

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\(\longrightarrow{\green{A.\:2 \: ( x + 3)(x + 3) }}\) 

\(\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\red{:}}}}}\)

\(2 {x}^{2} + 12x + 18\)

Taking 2 as common factor, we have

\( = 2 \: ( {x}^{2} + 6x + 9) \\ = 2 \: ( {x}^{2} + 3x + 3x + 9)\)

Next, we take \(x\) as common from first two terms and 3 from last two terms,

\( = 2 \: [x(x + 3) + 3(x + 3)]\)

Taking the factor \((x+3)\) as common,

\( = 2 \: ( x + 3)(x + 3)\)

\(\red{\large\qquad \qquad \underline{ \pmb{{ \mathbb{ \maltese \: \: Mystique35}}}}}\)

The vector field F(x, y) = (3\(x^{2}\) + 3y)i + (7 + 3x + 2y)j is not conservative, as its curl is non-zero.

Taking the curl of F, we get ∇ x F = (∂Fy/∂x - ∂Fx/∂y) = (3 - 3) i + (2 - 3) j = -i - j.

Since the curl of F is not zero (-i - j ≠ 0), we can conclude that F is not a conservative vector field.

The non-zero curl indicates the presence of a circulation in the vector field, which means that there are closed loops where the line integral of F along those loops is non-zero. This violates the condition for a vector field to be conservative, where the line integral around any closed loop should be zero.

Therefore, F(x, y) = (3\(x^{2}\) + 3y)i + (7 + 3x + 2y)j is not a conservative vector field.

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(a)The population of interest is the entire university community at Botho University. (b)The sample is the random sample of 200 members. (c)The average time spent in the library, which is 30 minutes, is a statistic because it is computed from the sample and represents a characteristic of the sample, not the entire population.

a) The population of interest in this case would be the entire university community at Botho University. It includes all members of the university community who could potentially spend time in the library.

b) The sample in this case is the random sample of 200 members that was taken from the university community. It represents a subset of the population of interest and is used to make inferences about the larger population.

c) In this case, 30 minutes is a statistic, not a parameter.

A statistic is a value calculated from a sample that describes some characteristic of the sample. In this case, the average time spent in the library, which is 30 minutes, was computed from the sample of 200 members. It represents the average time spent in the library by the sampled members.

On the other hand, a parameter is a value that describes a characteristic of the population. Since the average time spent in the library is based on the sample and not the entire population, it cannot be considered a parameter.

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Answer:  b

Step-by-step explanation:

I think

The average rate of consumption function from 6 AM to noon is 26.13 barrels of fuel oil per hour, rounded to 2 decimal places.

The formula for fuel consumption is:

f(t) = 0.9t³ - 0.1t⁰ + 14

where t represents the time in hours after 6 AM, and f(t) represents the amount of fuel oil consumed in barrels.

Average rate of consumption from 6 AM to noon means finding the value of f(t) for t = 6 hours.

We can find the average rate of consumption by calculating the average of f(t) from 6 AM to 12 PM.

Here's how to solve the given problem:

Solve the given equation for t = 6:f(t)

= 0.9t³ - 0.1t⁰ + 14f(6)

= 0.9(6)³ - 0.1(6)⁰ + 14

= 156.8

Therefore, the fuel consumption for the first six hours is 156.8 barrels of fuel oil.

To calculate the average rate of consumption, we'll have to divide this amount by the total hours from 6 AM to noon, which is 6 hours.

Average rate of consumption from 6 AM to noon = 156.8 / 6

= 26.13

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The car will cost $ 800 after a depreciation time of approximately 6 years.

Herein we are informed about the case of a car bought in 2011 at a cost of $ 36,000 and that depreciates linearly every year. Then, the depreciation function is described below:

c(t) = c' + m · t

Where:

If we know that c(0) = 36,000, c(4) = 12,000 and c(t) = 800, then the depreciation rate is:

m = (12,000 - 36,000) / (4 - 0)

m = - 24,000 / 4

m = - 6,000

800 = 36,000 - 6,000 · t

6,000 · t = 35,200

t = 35,200 / 6,000

t = 5.867

The expected depreciation time is approximately 6 years.

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The sum of three consecutive number is 63, hence the number is 20.

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

An independent variable is a variable that does not depend on any other variable for its value whereas a dependent variable is a variable that depend on any other variable for its value.

Let x represent the number. The sum of three consecutive number is 63, hence:

x + (x + 1) + (x + 2) = 63

x = 20

The sum of three consecutive number is 63, hence the number is 20.

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Answer:

Step-by-step explanation:

to calculate mean add all the entries in a week ,then divide by 7(the number of days)

i give you hint

mean for week 1=(52+65+...   +60)/7

The equation log(8x+2) = 3 can be rewritten in exponential form as 10^3 = 8x+2. Simplifying, we get:

1000 = 8x + 2

998 = 8x

x = 124.75

Therefore, the solution to the equation is x = 124.75, which is an approximation to 3-decimal places.

To verify the solution, we can substitute x = 124.75 back into the original equation and check if both sides are equal:

log(8(124.75) + 2) = log(1000)

log(1000) = 3

Since both sides are equal, we can conclude that x = 124.75 is indeed the solution to the equation.

Note that it is important to check the solution obtained from solving the equation as sometimes the solution may not be valid due to the domain of the function involved in the equation.

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Answer:

um

Step-by-step explanation:

Answer:

-175

Step-by-step explanation:

Answer:

-175

Step-by-step explanation:

Calculators are very useful, :).

Step-by-step explanation:

The line representing the equation 7x1 + 4x2 = 28 goes through the points (4,0) and (0,7).

Answer:

the board is 2.4 ft

Step-by-step explanation:

because 24/10 is 2.4

Answer:

Step-by-step explanation:

\(19x^2y-4xy^2+5xy^2-16x^2y=\\3x^2y+xy^2=\\xy*(3x+y)\)

Answer:

(this isnt a mathematics question, it's science, btw)

Indeed, you are correct. It is 1. I think.

Because you get one allele from each parent, to make up 2 alleles per offspring.

Hope that helps!

Answer: 140 degrees

Step-by-step explanation:

Because m2 is perpendicular to l1, the bottom angle made from m2 and l1 is a right angle = 90 degrees.  The angle vertical to 1 = 50 degrees.  Thus, the angle made from both of these is equal to 140 degrees.  Because l1 is parallel to l2, <2 is congruent to this angle, and thus equals 140 degrees.  

Wow, that would be much easier if the angles were labeled.

Hope it helps <3

Answer:

angle = 140 degrees

Step-by-step explanation:

Given:

All lines coplannar.

L1 || L2

m2 perpendicular to L1

angle 1 = 50 degrees

Solution

Refer to attached diagram

angle 4 = 90 degrees    ........... given

angle 3 = 180 - angle 4 - angle 1 = 180 - 90 - 50 = 40 degrees  .... angles on a line

angle 2 + angle 3 = 180 degrees  ............. sum interior angles between parallel lines L1 and L2

=>

angle 2 = 180 - angle 3 = 180 - 40 = 140 degrees.

Step-by-step explanation:

a linear function is defined as

y = ax + b

the variable x is only occurring with the exponent of 1.

this represents a straight line in a graphic representation (hence the name "linear").

if the exponent of the variable x is not 1, then it is not a linear function

P : y = 3/x + 2³

it is not linear.

the exponent of x = -1, as 1/x = x^-1. -1 is different to 1, which would be needed as exponent of x to make it linear.

Q : y = (1/3)x² + 3

it is not linear.

the exponent of x = 2. and 2 is different to 1, which would be needed as exponent of x to make it linear.

Answer:

Step-by-step explanation:

Comment

The first thing you ought to notice is that the original shape is a rectangle, with 2 of the y coordinates of the 4 points of 1. What that statement means is that two of the points (1,1) and (3,1) both sit on the line y = 1. they don't move. The other two points do move and they form a circular shape. So what you are going to get is a cylinder.

Answer: cylinder

Answer: 345

Step-by-step explanation: the alls

Answer:

Quadrant I

Step-by-step explanation:

Quadrant IV (bottom right corner) reflects over the x axis into the top right corner or Quadrant I

The given transformation of reflection, rotation and translation are rigid transformation

The transformation that must take any point A to any point B are;

Reason:

Question: The given quadrilaterals ABCD and A'B'C'D' are congruent

Required; To select all transformation that must take a point A to point B

Solution:  

A rotation of 180° about the midpoint of segment AB will change the places of points A and B

A(x, y) → R₁₈₀ → A'(-x, -y)

Let the coordinates of the origin be the midpoint of segment AB, and let (x, y) represent the coordinate of the point B(x, 0) we have;

∴ The coordinates of point A is A(-x, 0), which gives;

A(-x, 0) → R₁₈₀ → A'(x, 0) = point B

Therefore a rotation about the midpoint of AB must take point A to point B

The reflection of a point (x, y) about y-axis gives a point (-x, y), therefore, we have;

A(-x, 0) → Reflection across the y-axis → A'(x, 0) = point B

Therefore, a reflection across the perpendicular bisector of the line AB must take the point A to point B

A translation along the directed line segment AB of point A(-x, 0) 2·x units right gives;

A'(-x + 2·x, 0) = A'(x, 0) = Point B

Therefore, the transformations that must take any point A to any point B are;

Rotation of 180° around the midpoint of segment AB

Reflection across the perpendicular bisector

Translation by the directed line segment AB

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Answer:

6

Step-by-step explanation:

Answer: 278 tickets.

Step-by-step explanation: Each ticket costs $2.25, and is sold as that constant rate. We know that the drawer ended with 775.50 and started with a minimum of $150. Using this information, we can construct an equation.

150 + 2.25x = 775.50

Using algebra, we can simplify the equation to find the answer. Whatever we do to one side must be done to both sides.

150 + 2.25x = 775.50

-150                -150

= 2.25x = 665.50

(2.25 / 2.25) x = (665.50 / 2.25)

= x = 278

Answer:

-2.5?

Step-by-step explanation:

Answer:

1) x=0.25, or 1/4, 2) 6.5

Step-by-step explanation:

1)

3(x-2) + 5x+4

3x - 6 + 5x + 4

8x - 6 + 4

8x + 2

/2 /2

x= 0.25

2)

4 - 2(x+7) - 3

4 - 2x - 14 + 3

4 - 2x - 17

-2x - 13

/-2 /-2

x = 6.5