if u know any of these please let me know

With a greater mean value , we can conclude that the sixth period class test was better than the second period .

Second period class:

Mean = (55+70+6*75+6*80+2*85+3*90+95)/20

Mean = 1590/20 = 79.5

Sixth period class:

Mean = (65+3*75+5*80+6*85+3*90+2*95)/20

Mean = 1660/20 = 83

Therefore, From the mean values , we can infer that students performed better in test for the sixth period class than the second .

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Answer:

A, C, and E

Step-by-step explanation:

All the numbers being multiplied by 389,274 in those options are greater than 1

Therefore, The p-value is the probability of obtaining a test statistic as extreme or more extreme than the observed value, assuming the null hypothesis is true. If the p-value is less than the significance level, reject the null hypothesis; otherwise, fail to reject it.

To find the p-value from the t statistic on TI-84, you will need to perform a hypothesis test. Here are the steps:1. Enter your data into the calculator and choose the appropriate test.2. Calculate the t statistic by dividing the sample mean by the standard error.3. Determine the degrees of freedom. This is n-1 for a one-sample t-test or n1+n2-2 for a two-sample t-test. 4. Use the t-distribution table to find the critical value for your test.5. Calculate the p-value using the t-distribution function on the calculator.6. Compare the p-value to the significance level (usually 0.05) to determine whether to reject or fail to reject the null hypothesis.7.

Therefore, The p-value is the probability of obtaining a test statistic as extreme or more extreme than the observed value, assuming the null hypothesis is true. If the p-value is less than the significance level, reject the null hypothesis; otherwise, fail to reject it.

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Replace x and y’all with the point and solve the equations

1. 2(0.5)+ 4(-6.75) = 1 + -27 = -26

This is true so is an answer.

2. Y = 0.5-7.5 = -7, -7 is not -6.75 so this is not true.

3. 2(-6.75) = 0.5 + 13

13.5 = 13.5

This is true so is also an answer.

4. -6.75 = 0.5(0.5) -7

-6.75 = 0.25-7

This is true so also an answer.

Answers are 1, 3 and 4

Answer:

Equation 1 and 4

Step-by-step explanation:

Point = (x,y) = (0.5,-6.75)

Hence,

x = 0.5 , y = -6.75

Equation 1:

2(0.5) + 4(-6.75) = -26

1 - 27 = -26

-26 = -26

This equation is true for the given point.

Equation 2:

-6.75 = 0.5 - 7.5

-6.75 ≠ -7

The equation is not true for the given point.

Equation 3:

2 (-6.75) = 0.5 + 13

-13.5 ≠ 13.5

The equation is not true for the given point.

Equation 4:

-6.75 = 0.5(0.5) - 7

-6.75 = 0.25 - 7

-6.75 = -6.75

This equation is true for the given point.

\(\rule[225]{225}{2}\)

Hope this helped!

Answer: $29x

Step-by-step explanation:

8 tickets

8 x X= 8x

8x2=16

16+5=21

8x+21=29x

=$29x

Answer:

21 please let me know if this helped

Step-by-step explanation:

2x+5

x=8

2(8)+5

16+5 = 21

Answer:

2) f(3) = 2(3)+4

Step-by-step explanation:

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.

1. The probability of selecting exactly one tank with high-viscosity material is 0.

2. The probability of selecting at least one tank with high-viscosity material is 1.

3. The probability of selecting exactly one tank with high-viscosity material and exactly one tank with high impurities is 0.25.

1. The probability of selecting exactly one tank with high-viscosity material is calculated by the binomial distribution formula, P(X = n) = (nCx)p^x(1-p)^n-x, where n is the number of trials, x is the number of successes, and p is the probability of success. In this case, n = 4, x = 1, and p = 24/24 = 1. Therefore, P(X = 1) = (4C1)1^1(1-1)^4-1 = 0.

2. The probability of selecting at least one tank with high-viscosity material is calculated by the complement rule, P(X > 0) = 1 - P(X = 0). In this case, P(X > 0) = 1 - (4C0)1^0(1-1)^4-0 = 1.

3. The probability of selecting exactly one tank with high-viscosity material and exactly one tank with high impurities is calculated by the binomial distribution formula, P(X = n) = (nCx)p^x(1-p)^n-x, where n is the number of trials, x is the number of successes, and p is the probability of success. In this case, n = 8, x = 2, and p = 24/24 = 1. Therefore, P(X = 2) = (8C2)1^2(1-1)^8-2 = 0.25.

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Answer:

19

Step-by-step explanation:

Multiplying both sides of the equation by -3, we get an answer of 19

Answer:

Determining the input value of 19, we get 2/3 as an output after evaluating on the given polynomial.

Step-by-step explanation:

Equation:

\( \cfrac{2}{3} = - \cfrac{1}3x + 7\)

Find the value of x

Value of x is 19.

Checking:

When Evaluating x = 19 on the polynomial,

The volume of the solid is 1789.33.

Volume is defined as a capacity occupied by a three-dimensional solid shape. In any shape, it is hard to visualize but can be compared between shapes. For example, the volume of a compass box is greater than the volume of an eraser placed inside it. For calculating the area of any two-dimensional shape, we divide the portion into equal square units. Similarly, while calculating the volume of solid shapes we will divide it into equal cubical units. The S.I. unit of volume is cubic meter (m3) since volume is a quantity of the three-dimensional space occupied by a shape or surface. However, the most commonly used unit for volume is liter. Apart from this, large and small volumes are measured in other units like milliliter (ml), pints, gallons, and others.

For a square base parallel to the x-axis, you can use the formula:

\(V = \int\limits^a_b {f(y)}^{2} \, dy\)

The equation for a circle is x² + y² = r²

⇒ x = √(11² - y²) = √(121 - y²)

Then, if we consider that for a height y, the length x is double, we have that the length of each cross-section is given by:

f(y) = 2√(81 -y²)

With this, we can propose the following integral to obtain the volume that they are asking us:

\(V = \int\limits^{11}_0 {f(y)^{2} } \, dx \\V = \int\limits^{11}_0 {(2\sqrt{121-y^{2} } )^{2}} \, dx \\V = 4(121y - \frac{y^{3} }{3} )\)

We get that the volume is V=1789.33.

Thus, the volume of the solid is 1789.33.

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The solid has a volume of 1789.33.

The capacity occupied by a three-dimensional solid shape is known as volume. It is difficult to visualize in any shape, yet it may be compared among shapes. A compass box, for instance, has a bigger volume than an eraser inserted inside of it. We split the area into equal square units to determine the area of any two-dimensional form. Similarly to this, when computing the volume of solid things, we will divide it into equal cubical units. The cubic meter is the SI unit for volume because it measures how much three-dimensional space is occupied by a form or surface (m3). However, the liter is the unit of volume that is most frequently used. Other units used to measure large and small amounts include milliliters (ml), pints, gallons, and others.

The formula is: for a square base parallel to the x-axis.

\(V=\int\limits^a_b {f}(y)^2 \, dy\)

The circle's equation is x2 + y2 = r2.

⇒ x = √(11² - y²) = √(121 - y²)

The length of each cross-section is thus determined by: if we assume that at a height y, the length x is twofold.

f(y) = 2√(81 -y²)

As a result, we can offer the following integral to acquire the requested volume:

\(V=\int\limits^1_0 {f}(y)^2 \, dx\)

\(V= \int\limits^1_0 {(2\sqrt{(121-y^2)^2} } \, dx\)

\(V=4(121y-\frac{y^3}{3} )\)

The volume is determined to be V=1789.33.

As a result, the solid has a volume of 1789.33.

The complete question is:-

Use the general slicing method to find the volume of the following solid.

The solid with a semicircular base of radius 11 whose cross sections perpendicular to the base and parallel to the diameter are squares. Place the semicircle on the xy-plane so that its diameter is on the x-axis and it is centered on the y-axis. Set up the integral that gives the volume of the solid. Use increasing limits of integration.

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Answer:

Step-by-step explanation:

The temperature that is within one standard deviation of the mean (24°) is 27°.

In the given data, the mean temperature is 24°, and the standard deviation is 4°.

Within one standard deviation of the mean (i.e., 24 ± 4), temperatures ranging from 20° to 28° are considered. Among the options provided, 27° falls within this range, making it the temperature within one standard deviation of the mean.

This means that 27° is relatively close to the average temperature of 24° based on the standard deviation's variation.

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Answer:

8 more black beads.

Step-by-step explanation:

B=1

W=3

B:W = 1: 3

Make

B:W = 3:1 = 9:3

So we need (9-1) = 8 more black beads.

Answer: chupa verga maricon de mierda

Step-by-step explanation:

Answer:

324, 900, 9

Step-by-step explanation:

When a shape has its size increased by a scale factor, the size of its lengths are multiplied by this scale factor, yet its area is actually multiplied by the scale factor squared. This is due to two lengths being multiplied to contribute to the area, not just one. If it was a volume, you would multiply by the scale factor cubed!

Onto the answer, just follow the advice above:

36 * 3^2 = 36 * 9 = 324 square inches,

36 * 5^2 = 36 * 25 = 900 square inches,

36 * 0.5^2 = 36 * 0.25 = 9 square inches.

Hope this helps :)

Answer:

-\(\frac{9}{2}\) = -4.5

Step-by-step explanation:

-9 ÷ 2

Fraction \(\frac{-9}{2}\) can be written as \(-\frac{9}{2}\) by extracting the negative sign.

\(-\frac{9}{2}\)

Factor:

\(\frac{(-1)x3^{2} }{2}\) = -4.5

Answer:

I think it's

$20,216.57

Answer:

its c

Step-by-step explanation:

Answer:

D. 75 km/h

Step-by-step explanation:

Since the graph shows that the train is moving at a constant speed, it tells us that there is a slope.

For this one, you can just look at the graph since the time is already in hours.

When the time, in hours, is 1, the y is between 50 and 100. From 0 to 50, there is a unit in between and half of 50 is 25, so the spacing between each square in the y-axis is 25.

50+25=75

The train is moving at a speed of 75 km per hour.

Answer:

Rate = (4C)cars/3(H)hrs

Step-by-step explanation:

The expression of the above formula for C fraction of 4 cars and H fraction of 3 hours will be 4(C)/3(H) since he can tune 4 cars every 3 hours

The break-even point is the level of output at which total revenue (TR) equals total cost (TC). In this case, with TR(x) = 20x and TC(x) = 120 + 10x, we need to find the value of x where TR(x) = TC(x).

To find the break-even point, we set TR(x) equal to TC(x) and solve for x.
TR(x) = TC(x) can be expressed as:
20x = 120 + 10x
Simplifying the equation, we combine like terms:
20x - 10x = 120
10x = 120
To isolate x, we divide both sides of the equation by 10:
x = 12
Therefore, the break-even point occurs when x is equal to 12. At this level of output, the total revenue is equal to the total cost.

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Two point charges, q1 = 3.99 nC located at x = 0.205 m and q2 = 5.01 nC at x = -0.302 m, are placed on the x-axis. The electric field and direction at a given point can be calculated using the principle of superposition.

The electric field at a point due to a point charge is given by Coulomb's law, E = kq/r^2, where E is the electric field, k is Coulomb's constant (8.99 x 10^9 Nm^2/C^2), q is the charge, and r is the distance between the point charge and the point where the electric field is being measured. To calculate the net electric field at a point due to multiple charges, we use the principle of superposition, which states that the total electric field at a point is the vector sum of the electric fields due to each individual charge.

In this case, we have two charges, q1 = 3.99 nC and q2 = 5.01 nC. The electric field at a point P on the x-axis, due to q1, can be calculated as E1 = kq1/r1^2, where r1 is the distance between q1 and point P. Similarly, the electric field at point P due to q2 can be calculated as E2 = kq2/r2^2, where r2 is the distance between q2 and point P. To find the net electric field at point P, we add the electric fields vectorially, E_net = E1 + E2.

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Answer:

3149

Step-by-step explanation:

800(4)-{3(5)•5(2)-7(27)}-y

800(4)-{3(5)•5(2)-7(27)} - 90

3200 -{15•10-189} - 90

3200 -{150-189} - 90

3200  -{-39} - 90

3200 + 39 - 90

3149

The statement "No matter what the resource allocation is, area A will always have the highest resource availability" is false.

The availability of resources can be impacted by various factors and is not solely determined by the allocation.

What is resource allocation?

Resource allocation refers to the process of assigning and distributing resources to different tasks or projects. This involves determining which tasks require resources and allocating them accordingly. Resource allocation can include various resources such as time, money, personnel, equipment, and materials.

Why is the statement false?

The statement is false because resource allocation is not the only factor that determines resource availability. Other factors such as geography, climate, population, and economic development can also impact the availability of resources in a particular area. For example, a region with abundant natural resources such as oil or timber may have a high resource availability regardless of the resource allocation. Similarly, a region with a small population may have a high resource availability even if it receives a relatively low allocation of resources. On the other hand, a densely populated area with limited natural resources may have low resource availability even if it receives a high allocation of resources.

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Answer:a symbol, usually a letter, used to represent a number.

Step-by-step explanation:

a math process (like adding, subtracting, multiplying, or dividing)

Step-by-step explanation:

Sin(30 degrees) = 1/2

The value of sin 30° is 1/2 and it lies in 1 st quadrant.

Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.

sin 30° can be calculated using the unit circle or a calculator that has a sin function.

In the unit circle, 30° is in the first quadrant, and the sine of an angle in the unit circle is defined as the y-coordinate of the point on the circle that corresponds to that angle.

For a 30° angle, the point on the unit circle is (cos 30°, sin 30°)

= (√3/2, 1/2).

Therefore, the value of sin 30° is 1/2.

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Annual cost to operate farm B well with cost of natural gas $2.50 per 1,000 cubic feet and uses of 10000cubic feet of natural gas per year is $25.

As given,

Farm A:

Cost of natural gas per 1,000 cubic feet=$2.50

Farm B:

Uses of natural gas per year = 10000cubic feet

Cost of natural gas of farm B is same as farm A

Cost of natural gas per 1,000 cubic feet=$2.50

⇒1cubic feet=2.50/1000

Annual cost to operate 200ft well that uses 10000 cubic feet natural gas

10000 cubic feet=(2.50 ×10000)/1000

                             =$25

Therefore, annual cost to operate farm B well with cost of natural gas $2.50 per 1,000 cubic feet and uses of 10000cubic feet of natural gas per year is $25.

The complete question is:

Farm A has a 100 ft well that uses 7,000 cubic feet of natural gas per year. If the cost of natural gas for farm A is $2.50 per 1,000 cubic feet. And farm B has a 200 ft well that uses 10000 cubic feet of natural gas per year. if the cost of natural gas is the same a farm A, what is the annual cost to operate this well?

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Answer:

0.1 Inch

Step-by-step explanation:

If the image is 0.1 inch, and it is magnified by 10, 0.1 times 10 will give you the new size of the image after it is magnified. You can undo it by dividing 10 since you would multiply it to magnify it.

It is False that based only on the r and p values listed above you can come to the conclusion that age is a moderator of the bivariate relationship between the amount of texting and the number of accidents.

In the given scenario, it is not completely true that based only on the r and p values listed above, you can come to the conclusion that age is a moderator of the bivariate relationship between the amount of texting and the number of accidents.

Let's first understand what is meant by the term "moderator.

"Moderator: A moderator variable is a variable that changes the strength of a connection between two variables. If there is a statistically significant bivariate relationship between the amount of texting during driving and the number of accidents, scientists investigate whether this bivariate relationship is moderated by age.

Therefore, based on the values of r and p, it is difficult to determine if age is a moderator of the bivariate relationship between the amount of texting and the number of accidents.

As we have to analyze other factors also to determine whether the age is a moderator or not, such as the sample size, the effect size, and other aspects to draw a meaningful conclusion.

So, it is False that based only on the r and p values listed above you can come to the conclusion that age is a moderator of the bivariate relationship between the amount of texting and the number of accidents.

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The zero vector of a null space is the vector that satisfies the equation Ax = 0, where A is a matrix and x is a vector.

In linear algebra, the null space (also called kernel) of a matrix A is the set of all vectors x such that Ax = 0. In other words, it is the set of all solutions to the homogeneous equation Ax = 0.

The zero vector of a null space is the vector that when multiplied by the matrix A results in the zero vector, which means that it is a solution to the homogeneous equation Ax = 0.

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Answer:

B. 3 units right and 4 units up

The correct steps were applied to ABCD to obtain A'B'C'D is,

⇒ 3 units right and 4 units up

A transformation that occurs when a figure is moved from one location to another location without changing its size or shape is called translation.

We have to given that;

Translation applied to ABCD to obtain A'B'C'D.

Now, We get;

Coordinate of A = (2, 3)

Coordinate of A' = (5, 7) = (2 + 3, 3 + 4)

Hence, The correct steps were applied to ABCD to obtain A'B'C'D is,

⇒ 3 units right and 4 units up

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Answer:

D)

Step-by-step explanation:

4m+3

The weighted mean of the percentages is 37.5%.

To find the weighted mean of the percentages, we need to multiply each percentage by its corresponding number surveyed, sum the products, and divide by the total number surveyed.

The calculation for the weighted mean is:

weighted mean = (1/total surveyed) * sum(percentages x number surveyed)

total surveyed = 2500 + 1500 + 3000 = 7000

(1) For the percentage favored 30:

30% x 2500 = 750

(2) For the percentage favored 25:

25% x 1500 = 375

(3) For the percentage favored 50:

50% x 3000 = 1500

Now we can add up these products:

750 + 375 + 1500 = 2625

Finally, we can divide by the total number surveyed to get the weighted mean:

weighted mean = 2625/7000 = 0.375

Therefore, the weighted mean of the percentages is 37.5%.

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