PLEASE HELP I NEED TO PASS THIS CLASSS!!!!!!!!!!

Consider these two triangles. Triangle A'B'C' is the
dilated figure with a scale factor of 3.

What can be concluded about the two triangles? Check
all that apply

The triangles are similar.
The corresponding sides are proportional.
The length of A'B' is 15.
The length of B'C' is 9.
The dilation is a reduction.

According to the question The probability that all 4 selected vials have hairline cracks is approximately 0.2449 or 24.49%.

To calculate the probability that all 4 selected vials have hairline cracks, we can use the concept of probability and combinations.

Let's denote the event of selecting a vial with a hairline crack as "C" and selecting a vial without a hairline crack as "NC". We know that out of the 53 vials, only 15 do not have hairline cracks, so the probability of selecting a vial with a hairline crack, \(P(C),\) is \(1 - (15/53).\)

To find the probability of all 4 selected vials having hairline cracks, we need to multiply the probabilities of selecting a vial with a hairline crack four times, since the selections are independent. Therefore, the probability can be calculated as:

\(P(4C) = P(C) * P(C) * P(C) * P(C) = (1 - (15/53))^4.\)

Now we can plug in the values and calculate the probability:

\(P(4C) = (1 - (15/53))^4 = (38/53)^4 \approx 0.2449. \]\)

Therefore, The probability that all 4 selected vials have hairline cracks is approximately 0.2449 or 24.49%.

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The budgets of Hong Kong, the United States of America, and Korea differ in contents, formats, advantages, and disadvantages. While each budget has its strengths and weaknesses, they all aim to provide a clear and transparent financial plan for their respective countries.

A budget is a financial plan that estimates expected income and expenditure for a specific period. It may include income, expenses, debts, and savings. Budgets may vary from country to country and can be analyzed by comparing their contents, formats, advantages, and disadvantages. Here are the budgets of Hong Kong, the United States of America, and Korea:

United States Budget:

Korean Budget:

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Answer:

9

Step-by-step explanation:

let x be number of jeans

3/5 = x/15

x=(3/5)15

x=9

Answer:

9 jeans

Step-by-step explanation:

The 5 part of the ratio relates to 15 shirts , then

15 ÷ 5 = 3 ← value of 1 part of the ratio , then

3 parts = 3 × 3 = 9 ← number of jeans

Answer:

85%

Step-by-step explanation:

Because we can see that only 15% of the class obtained A's, and the question only refers to those that did not receive A's, we can subtract the 15% of the 100% whole to get 85%. This can also be written as 85/100 or 17/20(simplified).

Answer:

$98.09

Step-by-step explanation:

Answer:

$98.09

Step-by-step explanation:

to find 9% of 89.99, you multiply 89.99 by 0.09 (convert the percentage into a decimal by moving the decimal point to the left twice.)

89.99 x 0.09 = 8.0991 ~ 8.10

89.99 + 8.10 = 98.09

= $98.09

Answer:

125 questions

Answer:

125 questions

Step-by-step explanation:

Answer:

The polar coordinates appear in the form (r, θ), where r is the the radius from the center and θ is the angle. To get the radius, do the following.

\(r = \sqrt{x^2 + y^2} = \sqrt{1^2 + (-1)^2} = \sqrt{2}\\\)

You can get the angle visually by drawing a point (1, -1) on a graph and seeing that it is 45 degrees from the top right quadrant (you can tell its 45 because both x and y have the same magnitude). Since there are 360 degrees, 360 - 45 = 315.

If you would like to find it mathematically, this is the way to do it

\(\theta = atan(y/x) = -45\)

Notice that -45 degrees is just 360 - 45 = 315

Your answer would be

\((\sqrt{2}, 315)\)

Answer:

7-3x

Step-by-step explanation:

Because he is 7 years younger than 3 times his brother's age which equals x.

The expression that can be used to find Deepak's age is 3 times his brother's age minus 7. This expression represents the relationship given in the problem statement.

To find Deepak's age, we need to consider his brother's age as a variable, let's say x. Three times his brother's age would be 3x. Since Deepak's age is 7 years younger than three times his brother's age, we subtract 7 from 3x. Therefore, the expression becomes 3x - 7, which gives us Deepak's age in terms of his brother's age.

By substituting different values for x, representing Deepak's brother's age, into the expression 3x - 7, we can calculate Deepak's age based on his brother's age.

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Answer:

Pour démontrer que le quadrilatère EFGH est un parallélogramme, nous devons prouver que ses côtés opposés sont parallèles.Nous pouvons utiliser le théorème de Thalès pour prouver que les côtés opposés d'EFGH sont parallèles :Les segments [AE], [BE] et [AB] ont le point E comme milieu, donc d'après le théorème de Thalès, on a : AE/EF = AB/BCLes segments [BF], [CF] et [BC] ont le point F comme milieu, donc d'après le théorème de Thalès, on a : BF/FG = BC/CDLes segments [CG], [DG] et [CD] ont le point G comme milieu, donc d'après le théorème de Thalès, on a : CG/GH = CD/DALes segments [DH], [AH] et [AD] ont le point H comme milieu, donc d'après le théorème de Thalès, on a : DH/HE = DA/ABEn combinant ces quatre équations, nous obtenons :AE/EF = CD/DA et BF/FG = AB/BC

=> AE/EF = BF/FGCG/GH = AB/BC et DH/HE = CD/DA

=> CG/GH = DH/HEAinsi, nous avons prouvé que les côtés opposés du quadrilatère EFGH sont parallèles. Par conséquent, EFGH est un parallélogramme.

Using the volume x³ + 10x² + 19x  - 30, the missing side of the rectangular prism is (x + 6)

Two sides of a rectangular prism are x + 5 and x - 1. The volume of the rectangular prism is given as x³ + 10x² + 19x  - 30.

Let's find the missing side of the rectangular prism.

Therefore,

volume of a rectangular prism = lwh

where

Therefore,

volume of the prism = x³ + 10x² + 19x  - 30

Let's factorise it to find the missing side length

x³ + 10x² + 19x  - 30  = 0

(x - 1)(x² + 11x + 30)

let's factorise x² + 11x + 30

x² + 11x + 30

x² + 5x + 6x + 30

x(x + 5) + 6(x + 5)

(x + 6)(x + 5) = 0

Therefore, the side length of the rectangular prism are (x - 1), (x + 5) and (x + 6)

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I may utilize the Cp Criterion, AICp, and SBCp to aid in choosing the optimal model. All of them impose sanctions for introducing predictions.

What is subset regression model?

Best subsets regression is a model-building regression analysis that is exploratory. It compares every model that might be built using a specified set of predictors.

There are Cp Criterion, AICp and SBCp that I can use to help select the best model. They all place penalties for adding predictors.

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Answer:

y = -x + 1

Step-by-step explanation:

Slope intercept form is y = mx + b

4x + 4y = 4

x + y = 1

y = -x + 1

Answer:

Step-by-step explanation:

Since the highest power is x^4, y increases without bound as x approaches positive or negative infinity. So the end behavior is positive infinity.

Answer:

\(y=x*2^x (3,5)+y\)

Step-by-step explanation:

The value of x in the given right angle triangle is: x = 2√10

Pythagoras Theorem is defined as the way in which we can can find the missing length of a right angled triangle.

The triangle possesses three sides, which are the hypotenuse (which is always the longest), Opposite (which doesn't touch the hypotenuse) and the adjacent (which is between the opposite and the hypotenuse).

Pythagoras is in the form of;

a² + b² = c²

Thus:

The hypotenuse of the smaller triangle is:

h = √(8²- 5²)

h = √(64 - 25)

h = √49

h = 7

Thus:

x = √(7² - 3²)

x = √40

x = 2√10

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Answer:

d

Step-by-step explanation:

pls make me as brainliest

The marginal probability density function of X is \($f_X(x) = 3x$\) and
the marginal probability density function of Y is \($f_Y(y) = \frac{3}{y^2}$\).

Given that X and Y are continuous random variables with joint density function:
\(fX,Y​(x,y) = $\frac{3}{1}xe^{-xy}$\)
where 0 < x, 0 < y.
We need to calculate the marginal probability density function of X and Y individually.
Marginal probability density function of
\(X: $f_X(x) = \int_{-\infty}^{\infty} f_{X,Y}(x,y) dy$\\$= \int_{0}^{\infty} \frac{3}{1}xe^{-xy} dy$\\$= 3x \int_{0}^{\infty} e^{-xy} dy$\\$= 3x[-\frac{1}{y} e^{-xy}]_{0}^{\infty}$\\$= 3x [0 - (-1)]$ \\= $3x$\\\)
Marginal probability density function of Y: \($f_Y(y) = \int_{-\infty}^{\infty} f_{X,Y}(x,y) dx$\)\($= \int_{0}^{\infty} \frac{3}{1}xe^{-xy} dx$\\$= 3 \int_{0}^{\infty} xe^{-xy} dx$\\$= 3[-\frac{1}{y} xe^{-xy}]_{0}^{\infty} - 3 \int_{0}^{\infty} (-\frac{1}{y}) e^{-xy} dx$\\$= 0 - 3 (-\frac{1}{y^2}) \int_{0}^{\infty} e^{-xy} dx$\\$= \frac{3}{y^2} [-\frac{1}{y} e^{-xy}]_{0}^{\infty}$\\$= \frac{3}{y^2} [0 - (-1)]$ \\= $\frac{3}{y^2}$\)
Therefore, the marginal probability density function of X is \($f_X(x) = 3x$\) and
the marginal probability density function of Y is \($f_Y(y) = \frac{3}{y^2}$\).

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The answer obtained from multiplying the measurements 64.49 and 6.57 is 423.70.

According to the rules governing significant figures, the result of a multiplication or division should have the same number of significant figures as the measurement with the fewest significant figures.

In this case, both measurements, 64.49 and 6.57, have four significant figures each. When multiplied together, the result is 423.6993. However, since the measurement 6.57 has the fewest significant figures, the final answer should be rounded to match that.

Therefore, the answer is rounded to three decimal places, resulting in 423.700. The zero at the end is included to indicate that the measurement is known to that level of precision.

Hence, considering the rules of significant figures, the answer obtained from multiplying the measurements 64.49 and 6.57 is 423.700.

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The probability that a randomly inspected tire is within the recommended range is 1 or 100%. This means that every tire in the car should be within the recommended range, assuming the average psi is on target.

The manufacturer's recommended correct inflation range for the tire is between 30 psi and 34 psi. If we assume that the average psi of the tires is on target, we can calculate the probability that a randomly inspected tire is within the recommended range.

To calculate this probability, we need to know the total range of psi values that a tire can have. Since the recommended range is from 30 psi to 34 psi, the total range would be 34 psi - 30 psi = 4 psi.

Now, we need to determine how many values within this total range are considered within the recommended range. In this case, any psi value between 30 psi and 34 psi (inclusive) is within the recommended range.

Therefore, the probability of a randomly inspected tire being within the recommended range can be calculated as follows:

Number of values within the recommended range / Total range of values Since there are 4 psi values within the recommended range and the total range is 4 psi, the probability would be:

4 psi / 4 psi = 1

So, the probability that a randomly inspected tire is within the recommended range is 1 or 100%.

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Using function concepts, we have that:

A function has the following format: y = f(x).

In which each value of y is a function of one value of x, and thus, x is the independent variable and y is the dependent variable.

That is, the input of the function is the independent variable and the output is the dependent variable.

For this problem, the volume is a function of time, hence Volume = f(Time) and:

The decay rate is constant, meaning that we have a decreasing linear function, and graph H fits this problem.

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Answer:

Based on the information provided, the correct choice is:

fail to reject it

Here are the key points:

• The mean depression score for the sample of 20 4th graders was 4.4.

• The counselor tested the null hypothesis that these 4th graders were less depressed than the general 4th grader population.

• The t score calculated was 2.8.

To reject the null hypothesis and conclude the sample differs from the population, we would need a high enough t score. But the t score of 2.8 is not conclusively high enough here.

Some additional considerations:

• The general 4th grader population mean is 5, so the sample mean of 4.4 is a bit lower, but not drastically. This suggests the sample may not differ hugely from the population.

• There is no information on the variation or standard deviation for either the sample or population. Without this, we can't determine if a t score of 2.8 actually signifies a statistically significant difference.

• The sample size of 20 is decent but not very large. Larger sample sizes provide more conclusive results.

• No p-value is given, making it hard to judge if the t score of 2.8 is high enough to reject the null hypothesis. By convention, p<0.05 is often used but we don't have the p-value here.

So overall, there is not enough definitive evidence provided to conclusively reject the null hypothesis. The t score of 2.8 alone is probably not high enough, given the considerations around sample size, variation, and lack of a p-value. More data and analysis would be needed to make a firm decision either way.

Therefore, the correct choice is: "fail to reject it". There is not enough information given in this question and results to conclusively reject the null hypothesis.

Step-by-step explanation:

Answer:

p = 7, x = 8

Step-by-step explanation:

z=8+6x-px for x

x = (8 - z)/(p - 6) and p≠6

Integer Roots:

p = -2, x = -1

p = 7, x = 8

Answer:

y = 130

Step-by-step explanation:

(4x+8) + (3x-19) + (x+7) = 180

4x + 8 + 3x - 19 + x + 7 = 180

(4x + 3x + x) + (8 -19 + 7) = 180

8x - 4 = 180

8x -4 +4 = 180 +4

8x = 184

8x/8 = 184/8

x = 23

3(23) - 19 = 50

50 + y = 180

180 - 50 = y

y = 130

The equation of the model is (b) 2x = 5

From the question, we have the following parameters that can be used in our computation:

Left = x x

Right hand side = 1 1 1 1 1

The above parameters mean that

Left = 2x

Right = 5

When represented as an equation, we have

2x = 5

Hence, the equation is (b)

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Step-by-step explanation:

*cough cough*

Answer:

-336

Step-by-step explanation:

g(x) = 24(x − 39)

Let x = 25

g(x) = 24(25 − 39)

    = 24 (-14)

    = -336

Answer:5

Step-by-step explanation:6×6

Answer:

I think 2

Step-by-step explanation:

I think 2 tell me if I'm wrong

Answer:

adsefrthgfdsfgd

Step-by-step explanation: