2) Maddie wants a Nintendo Switch bundle. It is on sale for $320, and her parents said that they would pay 60% of the cost if Maddie pays the rest. How much will Maddie have to pay?

Answer:

14 small floral arrangements

Explanation:

First you subtract 4 from 144

144 - 4 = 140

Second you multiply the cost of a small floral arrangement and how many you have boughten.

7 x 10 = 70

You subtract the cost of 10 medium floral arrangements and how many you have boughten.

140 - 70 = 70

Finally, you divide the cost of the small floral arrangements by the remaining money.

70 / 5 = 14

Based on the information provided, we cannot conclude with certainty that the average pickup order has a higher amount than the average delivery order.

Based on the information given, we can conclude that there is a 95% chance that the true mean for pickup orders falls between $33 and $51, and the true mean for delivery orders falls between $21 and $41. However, we cannot conclude with certainty that the average pickup order has a higher amount than the average delivery order.

To determine if there is a significant difference between the means of the two groups, we need to perform a hypothesis test. We can set up our null hypothesis as "there is no significant difference between the means of the pickup and delivery orders" and our alternative hypothesis as "the average pickup order has a higher amount than the average delivery order."

We can use a two-sample t-test to test this hypothesis. Assuming equal variances, we would calculate the test statistic as

t = (xpickup - xdelivery) / (s / √n)

where xpickup and xdelivery are the sample means for pickup and delivery orders, s is the pooled standard deviation, and n is the sample size for each group.

If our calculated t-value is greater than the critical value at a chosen significance level (e.g. 0.05), we can reject the null hypothesis and conclude that there is a significant difference between the means of the two groups.

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Answer:

-2

Step-by-step explanation:

Use the method, which is \(\frac{rise}{run}\).

The graph below shows an example of rise over run.

After you found the values using rise over run, then divide.

\(\frac{-2}{1}\) = -2

Hence, the slope of the line is -2.

The 95% confidence interval for the mean gas mileage of a 2012 Prius by all drivers who participate on fueleconomy.gov would depend on the sample size and the sample mean and standard deviation of the gas mileage data.

To calculate a 95% confidence interval for the mean gas mileage of a 2012 Prius by all drivers who participate on fueleconomy.gov, we would need to gather a sample of gas mileage data from the website. We would then calculate the sample mean and standard deviation of the gas mileage.
Assuming the sample follows a normal distribution and we have a sample size of at least 30, we can use the t-distribution to calculate the confidence interval. With a 95% confidence level and n degrees of freedom (n-1 = sample size - 1), we can look up the t-value using a t-distribution table or calculator.
Once we have the t-value, we can plug it into the following formula to calculate the confidence interval:
Confidence interval = sample mean ± (t-value * standard error)
The standard error is calculated by dividing the sample standard deviation by the square root of the sample size.

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The sofa worth after two years is, $385,875.

A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.

We have to given that;

Andrew spent $350,000 on a new couch. The sofa's worth falls exponentially at a pace of 5% every year.

Now, We know that;

The formula for calculating exponentially is,

⇒ f (x) = a (1 + r)ˣ

Where, The f(x) term represents the function.

The a variable stands for the beginning value of your data.

The r variable represents the growth rate.

The x variable is the time interval.

Hence, The sofa worth after two years is,

⇒ f (x) = a (1 + r)ˣ

⇒ f (x) = 350,000 (1 + 0.05)²

⇒ f (x) = 350,000 × 1.05²

⇒ f (x) = $385,875

Thus, The sofa worth after two years = $385,875.

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Answer:

pleasee reply me ...

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also h*t and s**y ..

Answer:

plz mark me as a brainelist

hope it helps you

Answer:

70

Step-by-step explanation:

Let the no of books bought be x

The cost price of 1 book is 5x

No of the missing book is 15

The remaining book is x-15

The selling price of 1 book is 87

Selling price of (x-15) book is 87

Hence the number of books can be calculated as follows

8(x-15)-5x= 90

8x-120-5x= 90

8x-5x= 90+120

3x= 210

x= 210/3

= 70

Hence the number of books bought is 70

Answer:

i dont understand what you're trying to say but 16 * 25 = 400

Answer:

9 and 13/15 or 148/15

Step-by-step explanation:

Hope this helps!

Answer: 7 ways

Step-by-step explanation:

   All value possibles when is rolled a single die are {1,2,3,4,5,6}

   there are 6 possible outcomes, so that if a die is rolled 7 times

    there will be at least one repeated result.

We must roll the die at least 7 times to guarantee getting the same value twice.

To guarantee getting the same value twice when rolling a single die, we need to continue rolling the die until we get a repeat of a previous value.

Since there are six possible values on a standard die (1, 2, 3, 4, 5, or 6), the worst-case scenario is that we roll the die six times and get all different values. However, on the seventh roll, we are guaranteed to get a repeat of one of the previous values.

Therefore, to guarantee the same value twice, we must roll the die at least 7 times

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Step-by-step explanation:

\(\displaystyle \boxed {y = sin\:(x + \frac{\pi}{2})} \\ y = Asin(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow 0 \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \hookrightarrow \boxed{-\frac{\pi}{2}} \hookrightarrow \frac{-\frac{\pi}{2}}{1} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{2\pi} \hookrightarrow \frac{2}{1}\pi \\ Amplitude \hookrightarrow 1\)

OR

\(\displaystyle y = Acos(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow 0 \\ Horisontal\:[Phase]\:Shift \hookrightarrow 0 \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{2\pi} \hookrightarrow \frac{2}{1}\pi \\ Amplitude \hookrightarrow 1\)

You will need the above information to help you interpret the graph. First off, keep in mind that although this looks EXACTLY like the cosine graph, if you plan on writing your equation as a function of sine, then there WILL be a horisontal shift, meaning that a C-term will be involved. As you can see, the photograph on the right displays the trigonometric graph of \(\displaystyle y = sin\:x,\)in which you need to replase "cosine" with "sine", then figure out the appropriate C-term that will make the graph horisontally shift and map onto the cosine graph [photograph on the left], accourding to the horisontal shift formula above. Also keep in mind that the −C gives you the OPPOCITE TERMS OF WHAT THEY REALLY ARE, so you must be careful with your calculations. So, between the two photographs, we can tell that the sine graph [photograph on the right] is shifted \(\displaystyle \frac{\pi}{2}\:unit\)to the right, which means that in order to match the cosine graph [photograph on the left], we need to shift the graph BACKWARD \(\displaystyle \frac{\pi}{2}\:unit,\)which means the C-term will be negative, and by perfourming your calculations, you will arrive at \(\displaystyle \boxed{-\frac{\pi}{2}} = \frac{-\frac{\pi}{2}}{1}.\)So, the sine graph of the cosine graph, accourding to the horisontal shift, is \(\displaystyle y = sin\:(x + \frac{\pi}{2}).\)Now, with all that being said, in this case, sinse you ONLY have a wourd problem to wourk with, you MUST use the above formula for calculating the period. Onse you do that, the rest should be easy. Now, the amplitude is obvious to figure out because it is the A-term, but of cource, if you want to be certain it is the amplitude, look at the graph to see how low and high each crest extends beyond the midline. The midline is the centre of your graph, also known as the vertical shift, which in this case the centre is at \(\displaystyle y = 0,\)in which each crest is extended one unit beyond the midline, hence, your amplitude. So, no matter how far the graph shifts vertically, the midline will ALWAYS follow.

I am delighted to assist you at any time.

Answer:

Properties of y = cos(x)

The cosine wave is a sinusoidal function (sine and cosine waves are the same except for a horizontal shift).

It is a continuous function and so its domain is (-∞, ∞)

The center line is y = 0

The Amplitude (the height from the center line to the peak) is 1, and so its range is -1 ≤ x ≤ 1

The y-intercept is at (0, 1)

Its period (length of one wave) is 2π (360°)

In the given figure, shape A is cone and shape B is cylinder. Therefore, option C is the correct answer.

A cone is a three-dimensional shape with a flat base (typically circular) that gradually narrows to a point at the top, called the apex or vertex. It is formed by a set of lines or half-lines extending from the apex to all points lying on a plane that does not contain the apex.

A cylinder is a three-dimensional figure that is made up of two parallel flat surfaces connected by a curved side. The two bases are typically circular, but can also be any other shape, such as an ellipse. The two bases are usually at different heights and the curved surface is made up of straight side walls connecting the two bases. Cylinders can be thought of as a circular tube that has been cut in half and then the cut edges pushed together.

Therefore, option C is the correct answer.

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Answer:

(a) k = 4 (b) y = -2x+9

Step-by-step explanation:

I know I solved it in reverse, but I hope you still be able to understand the way I solved.

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ;)

And if you find my answer helpful, please consider marking it Brainliest. Thnx

Answer:

cos\((x-\frac{\pi}{2})\)

Step-by-step explanation:

If you insists that sine and cosine should be of the same angle use Pythagorean identity. Otherwise you can use identity sin(x) = cos\((x-\frac{\pi}{2})\)

Hope this helps! :)

The answer is:

\(f'(x) = 12.7(4.1^x)(ln(4.1)/x - 2/x^2)\)

The derivative of f(x), we can use the quotient rule. Let's define

Then:

Simplifying this expression gives:

To find the derivative of f(x), we used the quotient rule, which states that the derivative of a quotient of two functions is equal to (the denominator times the derivative of the numerator minus the numerator times the derivative of the denominator) divided by the denominator squared.

In our case, we defined u(x) and v(x) as the numerator and denominator, respectively, and used the formula to find the derivative of f(x).The derivative of u(x) is found using the chain rule and the derivative of \(4.1^x\), which is \(4.1^x\) times the natural logarithm of 4.1.

The derivative of v(x) is simply 2x. We then substitute these values into the quotient rule formula and simplify the resulting expression to get the final derivative formula:

This formula tells us the slope of the tangent line to the graph of f(x) at any given point x.

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Answer:

4.61*10^7

Step-by-step explanation:

There are 7 places we need to show.

Since the integral does not have an elementary antiderivative, the best we can do is to leave it as ∫(x - 7)/(x^2 - 18x + 82) dx + c, where c is the constant of integration.

To evaluate the integral of (x - 7)/(x^2 - 18x + 82) dx, and use c for the constant of integration, follow these steps:

1. Identify the function: f(x) = (x - 7)/(x^2 - 18x + 82)

2. Integrate f(x) with respect to x: ∫(x - 7)/(x^2 - 18x + 82) dx

3. Find the antiderivative of f(x): This integral does not have an elementary antiderivative, so it cannot be expressed in terms of elementary functions.

4. Add the constant of integration: F(x) + c, where c is the constant of integration.

Since the integral does not have an elementary antiderivative, the best we can do is to leave it as ∫(x - 7)/(x^2 - 18x + 82) dx + c, where c is the constant of integration.

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The method applied for determining the density of a solid (regular and irregular) and a liquid is based on the concept of mass and volume.

For solids (regular and irregular):

Determining the mass: The mass of the solid can be measured using a balance or scale. The unit of mass is typically grams (g) or kilograms (kg).

Determining the volume:

Regular solids: The volume of regular solids, such as cubes or rectangular prisms, can be calculated using their geometric formulas. For example, the volume of a cube is calculated by cubing the length of one of its sides: Volume = side length^3.

Irregular solids: The volume of irregular solids can be determined using various methods such as water displacement. The solid is immersed in a known volume of liquid (e.g., water), and the increase in the volume of the liquid is measured. This increase represents the volume of the solid.

Calculating the density: The density of a solid is calculated by dividing its mass by its volume. The unit of density is typically grams per cubic centimeter (g/cm^3) or kilograms per cubic meter (kg/m^3).

For liquids:

Determining the mass: Similar to solids, the mass of the liquid can be measured using a balance or scale.

Determining the volume: The volume of a liquid can be measured directly using a graduated cylinder or other volumetric measuring devices. The unit of volume is typically milliliters (mL) or liters (L).

Calculating the density: The density of a liquid is calculated by dividing its mass by its volume. The unit of density is typically grams per milliliter (g/mL) or kilograms per liter (kg/L).

The method for determining the density of a solid (regular and irregular) involves measuring the mass and volume of the solid and calculating the density by dividing the mass by the volume. For liquids, the density is determined similarly by measuring the mass and volume.

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The effort needed to move an object along a curve that is specifically oriented. F(x, y) = (y, x) on the parabola y = 6x² from (0,0) to (2,24) is 48.

A bowl-shaped object is defined as having a curve at the surface created by the intersection of a cone and a plane that is perpendicular to a straight line. Another definition of a curve is one created when a moving point moves such that its distance from a fixed point equals its distance from a fixed line. A quadratic function is known in this form as its standard form. A parabola is a U-shaped curve that represents the quadratic function on a graph.

The given parabola is,

y = 6x²

Here consider x=t

Then,

y=6t²(0≤t≤z)

The work done by F(x, y) would be:

W=\(\int\limits^_c\)F.dr

=\(\int\limits^_c\)(\(y_{i} +x_{j}\))(d\(x_{i}\)+d\(y_{j}\))

=\(\int\limits^_c\)y dx + x dy

=\(\int\limits^2_0\)((6t²)(1)+(t)(12t))dt

=\(\int\limits^2_0\)18t²dt

=48

Therefore, the effort needed to move an object along a curve that is specifically oriented. F(x, y) = (y, x) on the parabola y = 6x² from (0,0) to (2,24) is 48.

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Answer:

FIRST ONE SHOWS THE PRODUCT OF TWO FACTOR

PLEASE MARK ME AS BRAINLIEST

Answer:

THE LAST ONE

Step-by-step explanation:

IT SHOWS THE PRODUCT OF 4 AND X WHICH HAVE A COEFFICIENT OF 4

\(\\ \sf\longmapsto x+88=138\)

\(\\ \sf\longmapsto x=138-88\)

\(\\ \sf\longmapsto x=50°\)

Option C is coreect

For the very first graph of the sinx function,

According to the coordinates obtained ,

The graph from the options which satisfied the sinx function are,

The graph of option A,C are satisfied the sin function .

Therefore the correct option is A , C.

Answer:

500

Step-by-step explanation:

I believe the answer is D) The mean cannot be determined from the available information.

The mean in math means the sum of all the numbers divided by how many numbers there are. There is no information about how many numbers there are nor any information of which numbers exist and which numbers don't.

The data set only tells us the first number, last number, and median-- things a box-and-whisker plot would tell us; perhaps a different way of representing data would work better to help us find the median like a dot plot or a bar graph.

If this is incorrect, please, don't refrain to tell me. Thank you.

The differential equation Uzz = 0 cannot be determined and has no solutions as the boundary conditions is indeterminate

Given data ,

To solve the differential equation uzz = 0 on the interval 0 < x < 4 with boundary conditions uz(0) = 1 and uz(4) = 2, we can first integrate the equation twice with respect to x to obtain the general solution. Then, we can apply the boundary conditions to determine the specific solution.

Integrating the equation uzz = 0 twice with respect to x, we get:

uz = A(x) + B(x)x + C,

where A(x), B(x), and C are constants to be determined, and C represents an arbitrary constant of integration.

Applying the boundary condition uz(0) = 1, we have:

u(0) = A(0) + B(0) x 0 + C = 1

Since B(0) x 0 = 0, we can simplify the equation to:

A(0) + C = 1

Next, applying the boundary condition uz(4) = 2, we have:

u(4) = A(4) + B(4) x 4 + C = 2

Now, to solve for A(x), B(x), and C, we need additional information, such as the value of uz'(0) or uz'(4), or any other boundary condition or initial condition. Without this additional information, we cannot uniquely determine the values of A(x), B(x), and C, and therefore we cannot obtain a specific solution for u(x).

Hence, the solution to the given differential equation with the provided boundary conditions is indeterminate, and we cannot provide a specific value for u(x) without additional information.

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When graphing an exponential function, a T-chart is commonly used to determine the values. The correct answer is option A.

The T-chart employs positive real numbers since this is the most typical form of exponential function.

Exponential functions are utilized to represent processes that increase or decrease exponentially, as well as to model phenomena in many different disciplines, including science, economics, and engineering.

The exponential function can be represented by the following equation:

\(y=a^x\), where a is the base, x is the exponent, and y is the outcome.

When a is a positive number greater than one, the function is called exponential growth, while when a is a fraction between 0 and 1, the function is called exponential decay.

The T-chart is used to determine the values to use in the graph and connect the dots as required. Positive real numbers are used as the values in the T-chart in order to effectively graph the exponential function.

Therefore, the correct answer is option A.

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Answer:

y= 16, 64, 256, 1024

y/x= 16/2, 64/3, 256/4, 1024/5,

Step-by-step explanation:

    This is just like any other equation, except instead of x being a number, it is an exponent. For example, when x equals 2, y equals 16 because y always equals four to the power of x.  This applies to all of the parts in your table. when x equals 3, y equals 4^3 (4 times 4 times 4) which is 64, and when x equals 4, y equals 4^4 (4 times 4 times 4 times 4), which is 256.

    For the y over x part that is just the value y, divided by the value x. For the first line on the table x equals 2, and we know y equals 16 (4^2 is 4 times 4, which is 16) so 16 divided by 2 is 8. That is the answer.

Hope this helps :)

Nonlinear positive association

Answer:

I got Nonlinear positive association

Step-by-step explanation: