Given triangle JKL, sin(38°) equals

cos(38°)
cos(52°)
tan(38°)
tan(52°)

9/16

7 of the squares are 4 so we just substract that from the total of 16 and we get 9

Answer:

approx. 68%

Step-by-step explanation:

this is a normal distribution.

in a normal distribution, approximately 68% of the data is within one standard deviation of the mean (we also have 95% of data is within two standard deviations of the mean, and 99.7% of data is within three standard deviations of the mean).

one standard deviation in our question is 113.

315 is one standard deviation below the mean because 428 - 113 = 315.

541 is one standard deviation above the mean because 428 + 113 = 541.

so we expect approx. 68% of the data to be between 315 and 541.

False. As you increase the sample size (n), assuming everything else remains the same, the width of the confidence interval decreases, not increases.

The width of a confidence interval is determined by several factors, including the sample size (n), the variability of the data, and the desired level of confidence. When all other factors remain constant, increasing the sample size (n) leads to a narrower confidence interval.

A larger sample size provides more information and reduces the uncertainty associated with estimating population parameters. This decrease in uncertainty leads to a smaller margin of error, resulting in a narrower confidence interval.

The relationship between the sample size and the width of the confidence interval can be understood by the formula for the margin of error. The margin of error is inversely proportional to the square root of the sample size. As the sample size increases, the square root of n increases at a slower rate, resulting in a smaller margin of error and narrower confidence interval.

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Answer:

-33c+22d

Step-by-step explanation:

=(−11)(3c+−2d)

=(−11)(3c)+(−11)(−2d)

Answer:

C y = 7x +19

Step-by-step explanation:

There are 19 gallons in the water tank and 7 gallons are added when you take x amount of minutes, which gives you y.

An example is 1 minute.

Y = 7(1) + 19

y = 7 + 19

y = 26

You have to remember that there are 19 gallons already in the tank and that 1 minute has passed, which means 7 gallons have been added. Thus there are 26 gallons in the water tank.

Hope this helps. :)

Answer:

I think the answer is A hopefully this helps

Answer:

thx for the free points

Step-by-step explanation:

The likelihood that the CD rack will be organized alphabetically is 1 in 28.

The first step is to count all conceivable arrangements.

Use combinations if you want to organize 6 of the 8 CDs. Combinations can be calculated using the formula C(n, r) = n! / [r!(n - r)!!], where n denotes the total number of items and r denotes the number of items being selected. Here, n = 8 and r = 6, respectively.

C(8, 6) = 8! / [6!(8 - 6)!] = 8! / [6!2!] = 28

The six CDs can therefore be organized in 28 different ways.

Step 2: Count how many configurations lead to an alphabetical order.

When they are placed precisely in that sequence, there is only one configuration in which the CDs are organized alphabetically.

3. Determine the likelihood.

Probability equals the product of the number of successful outcomes and the total number of conceivable outcomes.

Probability equals 1/28

You want to put 6 of the 8 CDs you have in this issue in a CD rack. We discover that there are 28 different possible arrangements using combinations. Only one of these configurations causes the CDs to be arranged alphabetically. As a result, there is a 1/28 chance that the CD rack will be organized alphabetically.

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We have x = 2.75 meters for the meter stick's shadow and the tree's shadow length is 47.2 meters.

To find the angle of elevation and the height of the tree, we can use similar triangles and trigonometric ratios.

Let's denote the height of the tree as h and the length of the meter stick's shadow as x. According to the given information, we have x = 2.75 meters for the meter stick's shadow and the tree's shadow length is 47.2 meters.

Using the concept of similar triangles, we can set up the following proportion: h / x = tree's height / tree's shadow length

Substituting the given values, we have: h / 2.75 = tree's height / 47.2

To find the angle of elevation, we can use the tangent function: tan(angle) = tree's height / meter stick's height

Substituting the values, we have: tan(angle) = h / 2.75

To solve for the angle, we can take the inverse tangent (arctan) of both sides: angle = arctan(h / 2.75)

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48 students can fit in one bus.

Given, a group of 234 students are going to see a thanksgiving parade, traveling in 4 busses and 3 vans.

Each bus holds 6 more than 3 times a number a van can hold.

Let the van holds 'x' students

then, bus holds 6 + 3x students

Now, according to the question

4(6 + 3x) + 3x = 234

24 + 12x + 3x = 234

24 + 15x = 234

15x = 234 - 24

15x = 210

x = 210/15

x = 14

So, bus holds 6 + 3x students

= 6 + 3(14)

= 6 + 42

= 48

Hence, 48 students can fit in one bus.

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Answer:

\((-\frac{1}{2},\frac{1}{5} )\), aka Option D is correct.

Hope this helps!

Answer:

Step-by-step explanation:

the answer for this is

(-1/2, 1/5]  <---

remember that it is a bracket at the end not a parenthese  

the answer is B

Answer:

C

Step-by-step explanation:

Answer:

B i just got the right answer

Step-by-step explanation:

According to the question The coefficient of variation for the given data set is 40%.

The coefficient of variation (CV) is a measure of relative variability and is calculated by dividing the standard deviation (SD) by the mean (μ) and expressing the result as a percentage.

The formula for the coefficient of variation is:

\(\[ CV = \left(\frac{SD}{\mu}\right) \times 100 \]\)

In this case, the standard deviation is 4 units and the mean is 10 units. Plugging these values into the formula, we get:

\(\[ CV = \left(\frac{4}{10}\right) \times 100 \]\)

\(\[ CV = 0.4 \times 100 \]\)

\(\[ CV = 40 \]\)

Therefore, the coefficient of variation for the given data set is 40%.

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Answer:

8.9

Step-by-step explanation:

\(d=\sqrt{(-7+3)^2+(-6-2)^2}\)

\(=\sqrt{16+64}\\=\sqrt{80}\)

=8.9

Amita can only use one of the possible molds if she wants a rectangular prism with a square base and volume of 28 cubic centimeters.

Let the length, width, and height of the rectangular prism be x, y, and z respectively. Since the volume of the prism is 28 cubic centimeters, we have:

x * y * z = 28

Since x, y, and z are whole numbers, we can find all possible combinations of three factors whose product is 28. These are:

1 * 1 * 28

1 * 2 * 14

1 * 4 * 7

2 * 2 * 7

Therefore, there are four different molds that Amita can make.

If Amita wants the mold to have a square base, then the length and width of the base must be equal. We can see that only one of the above combinations has equal length and width, which is:

2 * 2 * 7

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True. The k-nearest neighbor method can be used to classify a categorical outcome.

The k-nearest neighbor (k-NN) algorithm is a popular machine learning algorithm used for both classification and regression problems. In the case of classification problems, the k-NN algorithm works by finding the k data points in the training set that are closest to the input data point and then classifying the input data point based on the majority class of those k neighbors.

For example, if we have a dataset of flowers with different features such as petal length, petal width, and sepal length, and we want to classify a new flower based on these features, we can use the k-NN algorithm. By finding the k-nearest neighbors of the new flower in the dataset, we can determine the majority class of those neighbors and classify the new flower accordingly.

Since classification involves predicting a categorical outcome, the k-NN algorithm can be used for this purpose. Therefore, the statement that the k-nearest neighbor method can be used to classify a categorical outcome is true.

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Answer:

Arithmetic

Step-by-step explanation:

Answer:

Step-by-step explanation:

One that has the next least in common with the rest.

The expression shows the area of the shaded region in terms of A and B are 4A + B, 1.5B, and 12A.

The area of a triangle is defined as the total region that is enclosed by the three sides of any particular triangle.

Given

The area of one of the small right triangles outlined in blue is A cm2, while the area of the square outlined in red is B.

There are 4 triangles with an area of 4 so that is 4A and since there is only one square the area of the whole thing is 4A+B.

Each triangle is also equal to 1/8 of the square.

This means A=B/8 or B=8A.

First replacing B in the previous equation you get 4A+8A which is 12A.

Then replacing A with B/8 you get 4(B/8)+B which is B/2+B which is 3B/2 and 3/2 is 1.5 so 3/2B is equal to 1.5B.

Hence, the expression shows the area of the shaded region in terms of A and B are 4A + B, 1.5B, and 12A.

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The primary Property or characteristic of logarithms that may be utilised to simplify the given function in order to obtain an equivalent version using the term in x is the ability to write logarithmic expressions is x = ln and exp(x) = y.

According to the equality principle, anything inside two identical logarithms with the same base is equivalent to anything else outside of them. When x is greater than zero, the inverse characteristics of the logarithm are

logb bx = x and blogb

x = x. Logb (xy)

x = logb x+logb

y allows us to write a product as a sum thanks to the logarithm's product attribute. The inverse of the natural logarithm is the exponential function:

exp(x) = y x = ln, which may be written as exp: R (0,). (y).

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Tiana traveled 2.532 along the circular ski trail, when tiana is skiing along a circular ski trail that has a radius of 1.6 km long.

To solve this problem we can use the law of cosines. We can set up the equation c^2=1.6^2+1.419^2-2(1.6)(1.419)cos(theta), where c is the distance that Tiana has traveled and theta is the angle between the 3-o'clock position and the point at which Tiana stopped skiing. Solving for c, we get c=2.532 km. Therefore, Tiana has traveled 2.532 km along the circular ski trail.

To do this, we used the law of cosines to solve the triangle made by the center of the ski trail and the two points of interest. We then squared the radius, squared the distance to the right, and subtracted twice their product multiplied by the cosine of theta. Finally, we took the square root of the equation to get the distance Tiana traveled.

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Answer:

hey hello

Ur intro

by the way we are friends

okay

hehehehe

The number that must be added to both sides of the equation y = x² + 6x to complete the square is 9. Adding 9 allows us to rewrite the equation in the form of (x + 3)², which is a perfect square trinomial. Option D.

To complete the square in the equation y = x² + 6x, we need to add a specific number to both sides of the equation. The goal is to manipulate the equation into a perfect square trinomial form.

To determine the number that needs to be added, we take half of the coefficient of the x term and square it. In this case, the coefficient of the x term is 6. Half of 6 is 3, and squaring 3 gives us 9.

So, to complete the square, we add 9 to both sides of the equation:

y + 9 = x² + 6x + 9

Now, let's rewrite the right side of the equation as a perfect square trinomial:

y + 9 = (x + 3)²

By adding 9 to both sides, we have successfully completed the square. The right side is now in the form of a perfect square trinomial, (x + 3)². option D is correct.

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Answer:

..

Step-by-step explanation:

no the correct point would be (7,12)

7x1=7

7+5=12

Answer:

nop0e

Step-by-step explanation:

Answer:

93 people/km²

Step-by-step explanation:

3.956 × 10^7 = 39,560,000

38,560.000/423,970 = 93.308...

Answer: 93 people/km²

Answer:

Step-by-step explanation:

1.25, -0.5, -5.05

Answer:

A radioactive substance decays to 10g in 40 days

Step-by-step explanation:

the mass of a radioactive substance follows a continuous exponential decay model, with a decay rate parameter of 7% per day

Answer:

3०3333333333333333

43

Answer:

50% chance

Step-by-step explanation:

if there are four balls there is a 50% chance she will pick the basket ball or the scoccer ball. Hope this helped.

The probability that a random student gets a GED is 0.7392.

Given the probability that a student drops out is 0.04, and the probability that a dropout gets a high-school equivalency diploma (GED) is 0.24.

We need to find the probability that a random student gets a GED.

To find the probability that a random student gets a GED, we will use the following formula:

Total Probability = P(Dropout) * P(GED | Dropout) + P(Not Dropout) * P(GED | Not Dropout)

Here,Probability that a student drops out = P(Dropout) = 0.04

The probability that a dropout gets a high-school equivalency diploma (GED) = P(GED | Dropout) = 0.24

Therefore, Probability that a student does not drop out = P(Not Dropout) = 1 - P(Dropout) = 1 - 0.04 = 0.96

The probability that a non-dropout gets a high-school equivalency diploma (GED) = P(GED | Not Dropout) = 1 - P(GED | Dropout) = 1 - 0.24 = 0.76

Now,Total Probability = P(Dropout) * P(GED | Dropout) + P(Not Dropout) * P(GED | Not Dropout)

Total Probability = (0.04)(0.24) + (0.96)(0.76)

Total Probability = 0.0096 + 0.7296

Total Probability = 0.7392T

Therefore, the probability that a random student gets a GED is 0.7392.

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