A neighborhood pool charges $22 for a pool membership plus an additional $2 for each visit to the pool. If Elliot visited the pool 16 times, how much did he pay to us the pool?

Answer:

-22.65x

Step-by-step explanation:

(-0.75x-4)-(9.5x+8.4)=-4.75x-(17.9x)=-22.65

Answer: 41666666669 / 50000000003

Step-by-step explanation:

Answer:

150

Step-by-step explanation:

45........0.3

x ..........1 (same as 100%)

\( \frac{45}{x} = \frac{0.3}{1} \)

\(x = \frac{45}{0.3} \)

x = 450/3 = 150

:)

Given a cylinder of radius = r = 6 ft, and a height = h = 10 ft

A conic portion removed from the cylinder

So, the volume of the remaining portion =

the volume of the cylinder - the volume of the cone

The volume of the cylinder =

The volume of the cone =

so, the answer will be =

So, the answer is option 3) 240pi

Given:

To simplify:

Solving we get,

Hence, the answer is,

None of the expressions is equivalent to 78

The number is given as:

Number = 78

Next, we evaluate the expressions in the options using a calculator

2 × (10 × 3 + 32) = 124

2 × (13 + 32) = 90

(10 × 3 + 32) =62

2 × (10 × 3 + 3) = 66

None of the options equals 78

Hence, none of the expressions is equivalent to 78

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Answer:

\(x = 0 \\ 7y = 28 \\ y = 28 \div 7 = 4 \\ \\ \\ y = 0 \\ - 4x = 28 \\ x = 28 \div ( - 4) = - 7\)

Answer:

First option y=3/5x

Step-by-step explanation:

Because if you look on the graph, at x=5, y=3

in the equation, plug in x=5, you cancel out denominator left with y=3

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Answer: the answer is C or -45x+75

Step-by-step explanation:

1. disturtive property

5*-9x= -45x

5*15= 75

therefor it’s -45x+75

Answer:

120

Step-by-step explanation:

The formula \(nCk=\frac{n!}{k!(n-k)!}\) describes how many ways \(k\) items can be chosen given \(n\) total items. In this scenario, \(n=10\), and \(k=3\), thus:

\(\frac{10!}{3!(10-3)!}=120\)

This means that you can make 120 three-vegetable plates

They are equidistant from the origin. When rectangle LMNO is rotated 90° clockwise around the origin, the distance between the origin and point N remains the same as the distance between the origin and point N'.

Equidistant is a term used in geometry to describe two or more points, lines, or planes that are the same distance apart from each other. In other words, they are equidistant if they are at equal distances from a given point or line.

For example, in a circle, all points on the circumference are equidistant from the center of the circle. In a line segment, the midpoint is equidistant from both endpoints. In a triangle, the perpendicular bisectors of the sides all intersect at a single point that is equidistant from the three vertices.

The concept of equidistance is also used in the construction of geometric figures. For example, to construct a square, we can draw two perpendicular lines that intersect at a point and mark off equal distances along each line to create the four vertices of the square, all of which are equidistant from the intersection point.

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Given expression:  \(\frac{9x^2 - 1}{12x^2 - 12x} \div \frac{9x^2 + 12x + 3}{3x^2 - 6x + 3}\) . We can simplify the given expression by multiplying the numerator and denominator of the first fraction by (3x-1) and then factorise. So, the simplified expression is \($\frac{3(x-1)^2}{4x(3x+1)(x+1)}$\).

In the second fraction, we can factorise the quadratic expression in the numerator.

=  \(\frac{9x^2 - 1}{12x^2 - 12x} \cdot \frac{3x^2 - 6x + 3}{9x^2 + 12x + 3}\)

= \(\frac{(3x-1)(3x+1)}{12x(x-1)} \cdot \frac{3(x^2 - 2x + 1)}{3(3x^2 + 4x + 1)}\)

Simplify the expression.

= \(\frac{(3x-1)(x-1)}{4x(x-1)} \cdot \frac{(x-1)^2}{(3x+1)(x+1)}\)

= \(\frac{3(x-1)}{4x} \cdot \frac{(x-1)}{(3x+1)(x+1)}\)

= \(\frac{3(x-1)^2}{4x(3x+1)(x+1)}\) . Thus, the simplified expression is \($\frac{3(x-1)^2}{4x(3x+1)(x+1)}$\).

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Answer:

4.32

Step-by-step explanation:

gansnxiuzgenemxjxhsbe dnsjzuxghsbeb3ne

The length of the chord located 0.7 cm from the centre of a circular ring with a 2.5 cm radius is approximately 3.5 cm.

To calculate the length of the chord, we can use the following formula:

Chord Length = 2 x √(r^2 - d^2)

Where r is the radius of the circular ring and d is the distance between the chord and the centre of the circle.

In this case, r = 2.5 cm and d = 0.7 cm. Plugging these values into the formula, we get:

Chord Length = 2 x √(2.5^2 - 0.7^2) ≈ 3.5 cm (rounded to the nearest tenth)

Therefore, the length of the chord is approximately 3.5 cm. This hidden watermark technique is a simple but effective security measure that can help prevent counterfeiting or tampering with important documents. By incorporating a unique and difficult-to-replicate watermark, the jewellery company can protect its brand identity and ensure the authenticity of its official documents.

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The probability that a customer is charged incorrectly on at most 2 out of 11 items can be found by calculating the cumulative probability of being charged incorrectly on 0, 1, or 2 items,

Let's consider the probability of a customer being charged incorrectly on a single item. Given that customers are charged incorrectly for 4 out of every 10 items, the probability of being charged incorrectly on a single item is 4/10 or 0.4.

To find the probability that a customer is charged incorrectly on at most 2 items out of 11, we need to calculate the probabilities for 0, 1, and 2 items and then sum them up.

The probability of being charged incorrectly on 0 items is calculated using the binomial probability formula:

P(X = k) = C(n, k) * \(p^k\) *\((1 - p)^(n - k)\)

Here, n is the total number of items (11), k is the number of items charged incorrectly (0), and p is the probability of being charged incorrectly on a single item (0.4).

P(X = 0) = C(11, 0) * \(0.4^0\)* \(0.4^0\)

Similarly, we calculate the probabilities for 1 and 2 items:

P(X = 1) = C(11, 1) * \(0.4^1 * (1 - 0.4)^(11 - 1)\)

P(X = 2) =\(C(11, 2) * 0.4^2 * (1 - 0.4)^(11 - 2)\)

Finally, we sum up the probabilities for 0, 1, and 2 items to find the probability that the customer is charged incorrectly on at most 2 items:

P(X ≤ 2) = P(X = 0) + P(X = 1) + P(X = 2)

Calculate the values using the binomial probability formula, and round the final answer to four decimal places.

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The (a) and (b) parts show the 3D plot of Z using different functions (plot_surface and surf).

In part (c), the plot is modified to have interpolated shading using the plot_surface function with a different colormap (coolwarm).

In part (d), a contour plot of Z is created using the contour function, and a custom colormap is set up based on the limits of the function.

Finally, in part (e), a combination of the surface and contour plot is generated using the plot_surface and contour functions together.

What is Python?

Python is a general-purpose language, meaning that it can be used to create a number of different programs and is not specialized for any particular problem. Advertisement Brainly User Response: Python is a computer programming language often used to create websites and software, automate tasks, and perform data analysis.

Here's the code to generate the plots you described using Python and the Matplotlib library:

import numpy as np

import matplotlib.pyplot as plt

# Create x and y vectors

x = np.arange(-5, 5.1, 0.1)

y = np.arange(-5, 5.1, 0.1)

# Create matrices X and Y using meshgrid

X, Y = np.meshgrid(x, y)

# Calculate vector 2, Z = sin(x^2 + y^2)

Z = np.sin(X**2 + Y**2)

(a) Create a 3D plot using mesh plotting function

fig = plt.figure()

ax = fig.add_subplot(111, projection='3d')

ax.plot_surface(X, Y, Z)

ax.set_xlabel('X')

ax.set_ylabel('Y')

ax.set_zlabel('Z')

plt.title('3D Plot of Z')

plt.show()

(b) Create a 3D plot using surf plotting function

fig = plt.figure()

ax = fig.add_subplot(111, projection='3d')

ax.plot_surface(X, Y, Z, cmap='viridis')

ax.set_xlabel('X')

ax.set_ylabel('Y')

ax.set_zlabel('Z')

plt.title('3D Plot of Z using surf')

plt.show()

(c) Modify the surface plot with interpolated shading and different colormaps

fig = plt.figure()

ax = fig.add_subplot(111, projection='3d')

ax.plot_surface(X, Y, Z, cmap='coolwarm', rstride=1, cstride=1, linewidth=0, antialiased=False)

ax.set_xlabel('X')

ax.set_ylabel('Y')

ax.set_zlabel('Z')

plt.title('Modified 3D Plot with Interpolated Shading')

plt.show()

(d) Generate a contour plot of Z

plt.contour(X, Y, Z, cmap='rainbow')

plt.xlabel('X')

plt.ylabel('Y')

plt.title('Contour Plot of Z')

plt.colorbar(label='Z')

plt.show()

# Set up a custom colormap for parts (c) and (d)

cmap = plt.cm.get_cmap('coolwarm')

norm = plt.Normalize(vmin=-1, vmax=1)  # Set the limits of the colorbar

sm = plt.cm.ScalarMappable(cmap=cmap, norm=norm)

sm.set_array([])

# Generate a combination surface and contour plot of Z

fig = plt.figure()

ax = fig.add_subplot(111, projection='3d')

ax.plot_surface(X, Y, Z, cmap=cmap, rstride=1, cstride=1, linewidth=0, antialiased=False)

ax.contour(X, Y, Z, zdir='z', offset=-1, cmap=cmap)

ax.set_xlabel('X')

ax.set_ylabel('Y')

ax.set_zlabel('Z')

plt.title('Combination Surface and Contour Plot of Z')

plt.colorbar(sm, label='Z')

plt.show()

This code will generate the requested plots.

The (a) and (b) parts show the 3D plot of Z using different functions (plot_surface and surf).

In part (c), the plot is modified to have interpolated shading using the plot_surface function with a different colormap (coolwarm).

In part (d), a contour plot of Z is created using the contour function, and a custom colormap is set up based on the limits of the function.

Finally, in part (e), a combination of the surface and contour plot is generated using the plot_surface and contour functions together.

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We must find the length of one side of the new square.

Step one

The area of the square is 64. We know that the is of a rectangle is given by n x n, so:

The value of n is a number that multiplied by itself gives us 64, that number is 8, so we have:

Step two

The length of one side of the new square is obtained by multiplying the original length 8 by the scale factor 3/2, which gives us:

Answer

Multiplying a negative number by a negative number will give you a positive product.

When multiplying two negative integers, it comes out as positive.

For example, we are given the equation -4 * -4.

Using the rule [ -(-a) = a ], the answer for the equation is 16.

Best of Luck!

The probability that z lies between 0 and 3 is "0.9987". The correct option is A) 0.9987.

The probability that a standard normal variable z lies between 0 and 3.01 can be found using the standard normal distribution table or calculator. The area under the standard normal distribution curve between z = 0 and z = 3.01 represents the probability that z lies between those values.

The standard normal distribution is a bell-shaped curve with a mean of 0 and a standard deviation of 1. The area under the curve represents probabilities, and the total area under the curve is equal to 1. Using a standard normal distribution table or calculator, we can find that the probability that z lies between 0 and 3.01 is 0.9987, which means that there is a 99.87% chance that a standard normal variable z will fall between 0 and 3.01. Therefore, option A is the correct answer.

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Answer:

2cosx cosy = 2cosx cosy

Step-by-step explanation:

cos(x+y) + cos(x-y) = 2cosx cosy​

Use the formula for "Functions of the sum of two angles" and the "Function of the Difference of Two Angles" and substitute that in.

(Cosx cosy - sinx siny) + (cosx cosy + sinx siny)

Drop the parentheses

Cosx cosy - sinx siny + cosx cosy + sinx siny

Sinx siny can cancel

Cosx cosy + cosx cosy

This can be simplified to

2cosx cosy

Answer:

f(x) = (x − 1)(x − 2)(x − 3)

Step-by-step explanation:

through the x axis at one; x = 1    factor (x - 1)

through the x axis at two; x = 2    factor (x - 2)

through the x axis at three;  x = 3    factor (x - 3)

f(x) = (x − 1)(x − 2)(x − 3)

It is not true that sum of all the angles of a spherical triangles in Euclidean geometry is 180 degrees.

The sum of the angles of a spherical triangle is not equal to 180°. A sphere is a curved surface, but locally the laws of the flat (planar) Euclidean geometry are good approximations. In a small triangle on the face of the earth, the sum of the angles is only slightly more than 180 degrees.

Because a sphere and a plane differ geometrically, (intrinsic) spherical geometry has some features of a non-Euclidean geometry and is sometimes described as being one.

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Brody has 5 gallons of gas left in his car after driving for 2 hours

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

Brody has 9 gallons of gas and each hour, it reduces by 2 gallons of gas. Let us assume that he drives for t hours.

If y represent the amount of gas remaining after time t, then:

y = 9 - 2t

Let us assume he is driving for 2 hours, therefore:

y = 9 - 2(2)

y = 5

He has 5 gallons of gas left

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The statistic typically used in the estimation of the population variance of a variable is the sample variance, denoted by s².

The sample variance is a measure of the spread or dispersion of a set of data around its mean. It is calculated by taking the sum of the squared differences between each data point and the sample mean, and then dividing by the sample size minus one.

The sample variance is an unbiased estimator of the population variance, which means that its expected value is equal to the true population variance. However, the sample variance is not the only statistic used in the estimation of the population variance. Other statistics, such as the z-score, Student's t-test, chi-squared test, and Thompson's tau, may also be used in certain contexts depending on the specific research question and data characteristics.

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The effective annual rate implied by this offer is 2%.

The effective annual rate implied by this offer can be calculated by considering the fee charged for each $500 cash advance and the frequency of the advances over a year.

Given that the fee for each $500 cash advance is $10 and the time period for repayment is two weeks, we can calculate the number of cash advances in a year: 52 weeks divided by 2 weeks per advance equals 26 advances in a year.

Now, we can determine the total fees paid in a year by multiplying the fee per advance ($10) by the number of advances (26), which equals $260.

To find the effective annual rate, we need to compare the total fees paid to the total amount advanced. Since each cash advance is $500 and there are 26 advances, the total amount advanced in a year is $500 * 26 = $13,000.

Finally, we can calculate the effective annual rate (EAR) using the formula:

EAR = (1 + periodic interest rate)^number of periods - 1

In this case, the periodic interest rate is the total fees paid divided by the total amount advanced: $260 / $13,000 = 0.02.

Plugging this into the formula, we have:

EAR = (1 + 0.02)^1 - 1 = 0.02 or 2%.

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Answer:

534 = R + 211

Step-by-step explanation:

So the amount of texts Riley received can be expressed as a variable, and in this case I'll use "R". So we know Bella received 534 texts. and that's 211 MORE than riley. So R+211 should be the as 534. This gives you the equation: 534 = R + 211. and if you want to solve for R, you can subtract 211 from both sides to solve for R

Answer:

-25

Step-by-step explanation: