complete the pattern A12, B16, C20,​

Answer:

\(\boxed {x = 54}\)

Step-by-step explanation:

Solve for the value of \(x\):

\(7(x - 5) - 9 = 334\)

-Use Distributive Property:

\(7(x - 5) - 9 = 334\)

\(7x - 35 - 9 = 334\)

-Combine like terms:

\(7x - 35 - 9 = 334\)

\(7x - 44 = 334\)

-Add both sides by \(44\):

\(7x - 44 + 44 = 334 + 44\)

\(7x = 378\)

-Divide both sides by \(7\):

\(\frac{7x}{7}= \frac{378}{7}\)

\(\boxed {x = 54}\)

Therefore, the value of \(x\) is \(54\).

Answer:i think that the answer is 3

Step-by-step explanation:

Answer:

wouldn't it be 0 to 5 seconds it has the biggest change

Answer:

\(Total = 25\ yd\)

Step-by-step explanation:

The given parameters can be represented as:

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

\(Number=10\)

Required

The total yards

This is calculated as:

\(Total = Number * Length\)

\(Total = 10 * 2\frac{1}{2}\ yd\)

Convert fraction to decimal

\(Total = 10 * 2.5\ yd\)

\(Total = 25\ yd\)

The area under the curve over [2,5] is 24.

Given function is f(x) = 2xIntervals [2, 5] is given and it is to be divided into subintervals.

Let us consider n subintervals. Therefore, width of each subinterval would be:

$$
\Delta x=\frac{b-a}{n}=\frac{5-2}{n}=\frac{3}{n}
$$Here, we are using right-hand end point. Therefore, the right-hand end points would be:$${ c }_{ k }=a+k\Delta x=2+k\cdot\frac{3}{n}=2+\frac{3k}{n}$$$$
\begin{aligned}
\therefore R &= \sum _{ k=1 }^{ n }{ f\left( { c }_{ k } \right) \Delta x } \\&=\sum _{ k=1 }^{ n }{ f\left( 2+\frac{3k}{n} \right) \cdot \frac{3}{n} }\\&=\sum _{ k=1 }^{ n }{ 2\cdot\left( 2+\frac{3k}{n} \right) \cdot \frac{3}{n} }\\&=\sum _{ k=1 }^{ n }{ \frac{12}{n}\cdot\left( 2+\frac{3k}{n} \right) }\\&=\sum _{ k=1 }^{ n }{ \frac{24}{n}+\frac{36k}{n^{ 2 }} }\\&=\frac{24}{n}\sum _{ k=1 }^{ n }{ 1 } +\frac{36}{n^{ 2 }}\sum _{ k=1 }^{ n }{ k } \\&= \frac{24n}{n}+\frac{36}{n^{ 2 }}\cdot\frac{n\left( n+1 \right)}{2}\\&= 24 + \frac{18\left( n+1 \right)}{n}
\end{aligned}
$$Take limit as n → ∞, so that $$
\begin{aligned}
A&=\lim _{ n\rightarrow \infty  }{ R } \\&= \lim _{ n\rightarrow \infty  }{ 24 + \frac{18\left( n+1 \right)}{n} } \\&= \boxed{24}
\end{aligned}
$$

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Given function f(x) = 2x. The interval is [2,5]. The number of subintervals, n is 3.

Therefore, the area under the curve over [2,5] is 21.

From the given data, we can see that the width of the interval is:

Δx = (5 - 2) / n

= 3/n

The endpoints of the subintervals are:

[2, 2 + Δx], [2 + Δx, 2 + 2Δx], [2 + 2Δx, 5]

Thus, the right endpoints of the subintervals are: 2 + Δx, 2 + 2Δx, 5

The formula for the Riemann sum is:

S = f(c1)Δx + f(c2)Δx + ... + f(cn)Δx

Here, we have to find a formula for the Riemann sum obtained by dividing the interval [2.5] subintervals and using the right hand endpoint for each ck. The width of each subinterval is:

Δx = (5 - 2) / n

= 3/n

Therefore,

Δx = 3/3

= 1

So, the subintervals are: [2, 3], [3, 4], [4, 5]

The right endpoints are:3, 4, 5. The formula for the Riemann sum is:

S = f(c1)Δx + f(c2)Δx + ... + f(cn)Δx

Here, Δx is 1, f(x) is 2x

∴ f(c1) = 2(3)

= 6,

f(c2) = 2(4)

= 8, and

f(c3) = 2(5)

= 10

∴ S = f(c1)Δx + f(c2)Δx + f(c3)Δx

= 6(1) + 8(1) + 10(1)

= 6 + 8 + 10

= 24

Therefore, the Riemann sum is 24.

To calculate the area under the curve over [2, 5], we take the limit of the Riemann sum as n → ∞.

∴ Area = ∫2^5f(x)dx

= ∫2^52xdx

= [x^2]2^5

= 25 - 4

= 21

Therefore, the area under the curve over [2,5] is 21.

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Answer:

is finding the square root

The inverse operation of squaring a number is finding the square root of that number. The square root of a number "x" is the value that, when squared, gives the original number.

When a number is squared, it is multiplied by itself. For example, squaring the number 4 gives 4^2 = 16.

The inverse operation undoes the effect of squaring and returns you to the original number. In this case, finding the square root of a number is the inverse operation of squaring.

The square root of a number "x" is a value that, when squared, gives the original number. It is denoted by the symbol √x.

For example, if you have the number 25 and you want to find its square root, you calculate:

√25 = 5

5 is the square root of 25 because when you square 5 (5^2), you get 25.

The inverse operation of squaring a number is finding the square root of that number. The square root of a number "x" is the value that, when squared, gives the original number. The concept of square root and squaring are inverse operations that are used in various mathematical calculations and problem-solving.

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A solution that does not simultaneously satisfy all constraints is called an infeasible solution.

Option (C) is correct.

What is linear programming?

Linear programming, also known as linear optimization, is a method for achieving the best result in a mathematical model with requirements represented by linear relationships. Linear programming is a special case of mathematical programming.

In linear programming, a solution that does not simultaneously satisfy all constraints is called an infeasible solution.

In some cases, there is no feasible solution area, i.e., there are no points that satisfy all constraints of the problem. An infeasible LP problem with two decision variables can be identified through its graph. For example, let us consider the following linear programming problem.

Minimize z = 200x1 + 300x2

subject to

2x1 + 3x2 ≥ 1200

x1 + x2 ≤ 400

2x1 + 1.5x2 ≥ 900

x1, x2 ≥ 0

The region located on the right of PQR includes all solutions, which satisfy the first and the third constraints. The region located on the left of ST includes all solutions, which satisfy the second constraint. Thus, the problem is infeasible because there is no set of points that satisfies all three constraints.

Hence, a solution that does not simultaneously satisfy all constraints is called an infeasible solution.

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The probability that the average number of hours of overtime worked last month by a random sample of 140 employees in the city exceeds 20 hours is approximately 0.9564, or 95.64%.

To find the probability that the average number of hours of overtime worked by a random sample of 140 employees exceeds 20 hours, we can use the Central Limit Theorem (CLT). The CLT states that for a large enough sample size, the sampling distribution of the sample mean approaches a normal distribution, regardless of the shape of the population distribution.

Given that the population mean is 18.9 hours and the population standard deviation is 7.8 hours, we can calculate the standard error of the mean using the formula: standard error = population standard deviation / sqrt(sample size).

For this problem, the sample size is 140, so the standard error is 7.8 / sqrt(140) ≈ 0.659.

To calculate the probability, we need to standardize the sample mean using the z-score formula: z = (sample mean - population mean) / standard error.

In this case, the sample mean is 20 hours, the population mean is 18.9 hours, and the standard error is 0.659. Plugging these values into the formula, we get z = (20 - 18.9) / 0.659 ≈ 1.71.

Now, we can use a standard normal distribution table or calculator to find the probability associated with a z-score of 1.71. Looking up this value in the table, we find that the probability is approximately 0.9564.

Therefore, the probability that the average number of hours of overtime worked last month by a random sample of 140 employees in the city exceeds 20 hours is approximately 0.9564, or 95.64%.

Here's a sketch to visualize the calculation:

                  |

                  |

                  |

                  |       **

                  |      *  *

                  |     *    *

                  |    *      *

                  |   *        *

                  |  *          *

                  | *            *

-------------------|--------------------------

      18.9        |       20

The area under the curve to the right of 20 represents the probability we're interested in, which is approximately 0.9564 or 95.64%.

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7.5 more cups of water does she need.

According to this ratio, the person on the right receives three parts for every one that the one on the left receives.

Omilia is making chapatis by mixing flour and water in the ratio of 1 : 3. she starts by mixing 2.5 cups of water with 4 cups of flour.

eventual aim is 12 cups of water since we know that water must be three times as much as wheat and that

4 * 3 = 12.

Since 2.5 and 4 are already present, we create the equation:

2.5 + x = 12

Simplify.

x = 7.5

response is 7.5.

7.5 more cups of water does she need.

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Answer:

x = 13.5

Step-by-step explanation:

2/11 = 3/(3 + x)

6 + 2x = 33

2x = 27

x = 13.5

The required answer is  sec θ = -√2.

Explanation:-

Part 1: Given cosine of theta is equal to radical 3 over 2 on the domain [0,[infinity]).

To determine three possible angles θ,  the cosine inverse function which is a cos and since cosine function is positive in the first and second quadrant. Therefore  conclude that, cosine function of θ = radical 3 over 2 implies that θ could be 30 degrees or 330 degrees or 390 degrees. So, θ = {30, 330, 390}.Part 2:To convert 495° to radians, multiply by π/180°.495° * π/180° = 11π/4To find sec θ, we use the reciprocal of the cosine function which is sec.

Therefore, sec θ = 1/cos θ.To find cos 11π/4,  the reference angle, which is 3π/4. Cosine is negative in the third quadrant so the final result is sec θ = -√2.

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Divide each corresponding side ,

20/32 = 0.625

14/22.4 = 0.625

Both triangles have the same ratio

similar by ratios

A researcher needs a sample size of 629 to estimate the passing rate of Stats courses at FIU with a margin of error of 3% and a confidence level of 90%.

To estimate the passing rate of Stats courses at FIU with a margin of error of 3% and a confidence level of 90%, we need to calculate the appropriate sample size.

Here's a step-by-step explanation:

1. Identify the key terms: In this problem, the margin of error is 3% (0.03), the confidence level is 90% (z-score corresponding to 90% is 1.645), and the estimated passing rate is 70% (0.7).

2. Convert the passing rate and margin of error to proportions: The passing rate (p) is 0.7, and the margin of error (E) is 0.03.

3. Calculate the standard deviation (SD) for the proportion: SD = √(p(1-p)) = √(0.7(1-0.7)) = √(0.21) ≈ 0.458.

4. Determine the required sample size (n) using the formula: n = (z² * SD²) / E², where z is the z-score corresponding to the desired confidence level (1.645 for 90% confidence).

5. Plug in the values: n = (1.645² * 0.458²) / 0.03² ≈ (2.706 * 0.209) / 0.0009 ≈ 0.565 / 0.0009 ≈ 628.89.

6. Round up the result to the nearest whole number: Since you cannot have a fraction of a person in your sample, round up to the nearest whole number, which is 629.

In conclusion, a researcher needs a sample size of 629 to estimate the passing rate of Stats courses at FIU with a margin of error of 3% and a confidence level of 90%.

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ANSWER

∡5

EXPLANATION

Corresponding angles are the ones that are on the same side of the transversal and on the same side of each of the parallels

Answer:

m∠W = 125°

m∠X = 55°

m∠Z = 55°

Step-by-step explanation:

The explanation of angle measures is shown below:-

The shape which is parallelogram WXYZ. m∠Y = 125

A parallelogram represents the shape of quadrilateral in which both opposite sides and opposite angles are similar to each other. One parallelogram diagonals bisect each other. Consecutive angles are also supplementary to a parallelogram.

In WXYZ parallelogram is there

m∠Z + m∠Y = 180° is an angle of Consecutive in a parallelogram is supplementary

m ∠ Z + 125 = 180

m ∠ Z = 180 - 125

m ∠ Z = 55°

m ∠ W which equals to m∠Y where equal angles are Opposite

m∠W = 125°

m ∠ W + m ∠ X = 180°

which is the angle of Consecutive in a parallelogram called supplementary)

m ∠ X + 125 = 180

m ∠ X = 180 - 125

After solving the above equation we will get

m ∠ X = 55°

Answer:

A linear Function

Step-by-step explanation:

Since the function moves at a constant rate and doesn't have stuff like -5 or +8 or something else, it is a linear function

Answer:

4y - 8x = 24

Step-by-step explanation:

4y -8x = 24  Add 8x to both sides

4y = 8x + 24  Divide both sides by 4

y = 2x + 6  

This slope is 2 which would great a line parallel to y = 2x + 9

Desmos is a free program that can help you graph.  See the picture below.  You just type in the equation and it graphs it for you.  Cool

The probability of the interval -1.62 < z < 2.01 in a standard normal distribution is approximately 0.9262 or 92.62%.

In a standard normal distribution, the mean is 0 and the standard deviation is 1. The z-score represents the number of standard deviations a data point is from the mean. To find the probability of a specific interval, we calculate the area under the curve between the corresponding z-values.

Given the interval -1.62 < z < 2.01, we need to find the area under the standard normal curve between these two z-values. This can be done using a standard normal distribution table or by using a statistical software or calculator.

By looking up the z-values in the table or using software, we find the corresponding probabilities: P(z < -1.62) = 0.0526 and P(z < 2.01) = 0.9788.

To find the probability of the interval -1.62 < z < 2.01, we subtract the probability of the lower bound from the probability of the upper bound: P(-1.62 < z < 2.01) = P(z < 2.01) - P(z < -1.62 = 0.9788 - 0.0526 = 0.9262.

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Answer:

Question 11 is lots of suds. Question 12 is 1428 words in 10 minutes

Step-by-step explanation:

Answer:

it's going to be d.

Answer: c

Step-by-step explanation:

2*6=12

12+3=15

15 is not less than 10

2*4=8

8+3=11

11 is not less than 10

2*2=4

4+3=7

7 is less than 10

10*2=20

20+3=23

23 is not less than 10

Answer:

It is a tetrahedron.

Answer:

  True

Step-by-step explanation:

You want to know if it is true that the magnitude of a vector can never be less than the magnitude of any of its components.

By most definitions, the magnitude of a vector is the root of the sum of the squares of its components.

A square is never negative, so the sum of squares will always be at least as great as the square of the largest component. Hence the vector's magnitude can never be less than the magnitude of its largest component.

The statement is true.

__

Additional comment

This fact can help you sort out the possible from the impossible answers to many vector and triangle problems.

<95141404393>

So, the equation of the tangent to the curve at (1, 81) is y = -18x + 99.

We have x = e^t and y = (t - 9)^2. We can find the derivative of y with respect to x as follows:

dy/dx = dy/dt * dt/dx

Now, dt/dx = 1/ dx/dt = 1/(d/dt(e^t)) = 1/e^t = e^(-t)

Also, dy/dt = 2(t - 9)

So, dy/dx = 2(t - 9) * e^(-t)

We need to find the slope of the tangent at the point (1, 81). So, we substitute t = ln(x) = ln(1) = 0 in the derivative expression:

dy/dx = 2(0 - 9) * e^(0) = -18

Therefore, the slope of the tangent at (1, 81) is -18.

Now, we can use the point-slope form of the equation of a line to find the equation of the tangent:

y - 81 = (-18) * (x - 1)

Simplifying, we get:

y = -18x + 99

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The point at which the direction of fastest change of the function f(x, y) = x² + y² - 2x - 6y is in the direction of vector i + j is (3/2, 7/2).

In mathematics, a function is a unique arrangement of the inputs (also referred to as the domain) and their outputs (sometimes referred to as the codomain), where each input has exactly one output and the output can be linked to its input.

To find the points at which the direction of fastest change of the function f(x, y) = x² + y² - 2x - 6y is in the direction of vector i + j, we need to find the gradient vector of the function and equate it to the given direction vector.

The gradient vector of the function f(x, y) is given by:

∇f(x, y) = [∂f/∂x, ∂f/∂y]

Taking partial derivatives of f(x, y) with respect to x and y:

∂f/∂x = 2x - 2

∂f/∂y = 2y - 6

Setting the gradient vector equal to the given direction vector i + j:

[2x - 2, 2y - 6] = [1, 1]

Equating the corresponding components, we have:

2x - 2 = 1

2y - 6 = 1

Solving these equations, we get:

2x = 3  =>  x = 3/2

2y = 7  =>  y = 7/2

Therefore, the point at which the direction of fastest change of the function f(x, y) = x² + y² - 2x - 6y is in the direction of vector i + j is (3/2, 7/2).

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\(y=-\dfrac 14 x~~....(i)\\\\x+2y = 4~~...(ii)\\\\\text{Substitute}~~ y= -\dfrac 14 x ~~ \text{in equation (ii):}\\ \\ \\x+2\left(-\dfrac 14 x \right) = 4\\\\\implies 4x -2x = 16~~~~;\left[\text{Multiply both sides by 4} \right]\\\\\implies 2x = 16\\\\\implies x =\dfrac{16}2 \\ \\\implies x =8\\\\\text{Substitute x = 8 in equation (i);}\\\\y= -\dfrac 14 \cdot 8 = -2\\\\\text{Hence,}~ (x,y) = (8,-2)\)

Answer:

\(y = - \frac{1 }{4} x \\ \)

\(x + 2y = 4 \\ \)

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

\(x + ( - \frac{2}{4} x) = 4 \\ \)

\(x - \frac{1}{2} x = 4 \\ \)

\( \frac{2x - 1x}{2} = 4 \\ \)

\(2x - x = 8\)

\(x = 8\)

\(x + 2y = 4 \\ \)

\(8 + 2y = 4\)

\(2y = 4 - 8\)

\(2y = - 4\)

\(y = - 2\)

We should choose Formulas as X in the given series of clicks to calculate formulas automatically.

File < Options < (A) Formulas < Automatic

We should choose Formulas as X in the given series of clicks to calculate formulas automatically.

Therefore, File < Options < (A) Formulas < Automatic

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The complete question is given below:

What would you choose as X in the given series of clicks to calculate formulas automatically: File < Options < X < Automatic?

a. Formulas

b. Language

c. Proofing

d. Advanced

Step-by-step explanation:

Use z-score table to find the z-score that corresponds to .7000   ( 70%)

approx   .525   s.d.  above the mean

  .525  * 10 =  5.25  points above 100   = 105.25

We can estimate that roughly 50% of regulation soccer balls have a circumference greater than 69.9 cm (or exactly 70 cm).

According to the regulations set by FIFA, the circumference of a regulation soccer ball must be between 68cm and 70cm. Assuming that manufacturers adhere to these regulations, we can assume that the percentage of soccer balls with a circumference greater than 69.9 cm is equal to the percentage of soccer balls with a circumference of exactly 70 cm.

The midpoint between 68 cm and 70 cm is 69 cm, and since the circumference of a sphere is proportional to its radius, the circumference of a regulation soccer ball with a radius of 10.97 cm (which corresponds to a circumference of 69 cm) is approximately equal to the circumference of a soccer ball with a radius of 11.11 cm (which corresponds to a circumference of 70 cm).

Therefore, we can estimate that roughly 50% of regulation soccer balls have a circumference greater than 69.9 cm (or exactly 70 cm) and round to the nearest tenth of a percent.

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The two numbers are 7/6 and 5 when the sum of two numbers is 3 more than four times the first number.

Let's call the two numbers x and y, where x is the first number and y is the second number.

The problem gives us two equations that relate the two numbers:

\(x + y = 3 + 4x\\y - x = 2y - 10\)

We can substitute the expression for y from equation 1 into equation 2:

\(y - x = 2(3 + 4x) - 10\)

Expanding the right side and simplifying, we get:

\(y - x = 6 + 8x - 10\\y - x = 8x - 4\)

Adding x to both sides:

\(y = 9x - 4\)

Substituting this expression for y into equation 1:

\(x + (9x - 4) = 3 + 4x\)

Expanding and simplifying the right side:

\(10x - 4 = 3 + 4x\)

Subtracting 4x from both sides:

\(6x - 4 = 3\)

Adding 4 to both sides:

\(6x = 7\)

Dividing both sides by 6:

\(x = 7/6\)

Substituting this value of x back into the expression for y:

\(y = 9x - 4 = 9 * (7/6) - 4 = 63/6 - 4 = 9 - 4 = 5\)

So the two numbers are 7/6 and 5.

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