The point B is a reflection of point A across which axis?
Choose 1 answer:
(Choice A)
The x-axis

(Choice B)

The y-axis

(Choice C)

Both the x-axis and the y-axis

A type I error occurs when we reject the null hypothesis (H0) when it is actually true.

b) The significance level (α) is the probability of making a type I error. Since the rejection region is {y ≤ 12} and the null hypothesis is p = 0.8, we need to find the probability of getting a sample proportion (y/20) less than or equal to 0.6 (12/20) under the null hypothesis. Using a normal approximation to the binomial distribution, we have:

z = (0.6 - 0.8) / sqrt(0.8 * 0.2 / 20) ≈ -1.79

From a standard normal distribution table, we find that the area to the left of z = -1.79 is approximately 0.0367. Therefore, α = 0.0367 or 3.67%.

c) A type II error occurs when we fail to reject the null hypothesis (H0) when it is actually false.

d) To find β when p = 0.6, we need to find the probability of not rejecting the null hypothesis (H0: p = 0.8) when the true proportion is p = 0.6. Using a normal approximation to the binomial distribution, we have:

z = (0.6 - 0.8) / sqrt(0.8 * 0.2 / 20) ≈ -1.79

We want to find the probability that z is greater than -1.79, which is the area to the right of z = -1.79 under the standard normal distribution. From a standard normal distribution table, we find that the area to the right of z = -1.79 is approximately 0.9637. Therefore, β ≈ 0.9637.

e) To find β when p = 0.4, we again need to find the probability of not rejecting the null hypothesis (H0: p = 0.8) when the true proportion is p = 0.4. Using a normal approximation to the binomial distribution, we have:

z = (0.4 - 0.8) / sqrt(0.8 * 0.2 / 20) ≈ -3.58

We want to find the probability that z is greater than -1.79, which is the area to the right of z = -3.58 under the standard normal distribution. From a standard normal distribution table, we find that the area to the right of z = -3.58 is approximately 0.9997. Therefore, β ≈ 0.9997.

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Answer:

A letter or symbol that represents a specific number, known or unknown is called a constant.

Step-by-step explanation:

if it helped u please mark me a brainliest :-/

Answer:

Yes

Step-by-step explanation:

So start with (0,1) the y intercept and make the first point at (0,1)

Think of m ( the slope) as the mountain slope, This is the angle of the slope of the line

So in this case go up three on the y axis and over 1 on the x axis.

make the next point at 1 + 3 = 4 for the y value and 0 + 1 = 1 for the x value. Make the next point at ( 1, 4)

Now connect the points. creating the line

hope this helps!

Answer:

Step-by-step explanation:

Look at the picture.

Answer:

yes

Step-by-step explanation:

it is possible to be an isoscelize triangle

pls mark brainliest

Answer:

I think yes

Step-by-step explanation:

because the two sides that are bigger can be the ones with the lenght of 8

and the one in the bottom can be the one with the lenght 1

hope this helps <33

have a nice day :)

Check the picture below.

Answer:

I think the answer is x<2/7

Step-by-step explanation:

That's what i got.

Answer:

Step-by-step explanation:

x<2/7

Answer:

57degrees

Step-by-step explanation:

The triangle is an isosceles triangle, hence m<D = m<E (base angles are equal)

Taking the sum of the angles and equating to 180

5x-4 + 4x+1 + 4x+1 = 180

5x+4x+4x-4+1+1 = 180

13x - 2 = 180

13x = 180 + 2

13x = 182

x =182/13

x = 14

Get m<E

m<E = 4x+ 1

m<E = 4(14)+ 1

m<E = 56+1

m<E = 57degrees

Hence the measure of m<E is 57degrees

The system of equations that can be used to determine a and y are  

x+ y=10

x+3y=18

When two expressions are connected with the equals sign (=) in a mathematical formula, it expresses the equality of the two expressions. In English, an equation is defined as a properly written formula that consists of two expressions joined by an equals sign, while cognates of the word in other languages may have slightly different meanings. An equation, for instance, is said to have one or more variables in French.

Determine which values of the variables result in the equality to be true in order to solve an equation with variables. The values of the variables that must fulfill the equality to constitute the answer are known as the unknowns, together with the variables for which the equation must be solved.

Let x be the number of blocks of one inch

And y be the number of three inch blocks

The number of blocks must be 10

Therefore, x+y=10

The length  of the line is 18 inches long.

So, x+3y=18

Therefore,  x+ y=10

x+3y=18

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Answer:

x = 15°

Step-by-step explanation:

First Identify the angle of x by subtracting 180° - 120° = 60°

Always remember when you see a straight line the line measures 180°

So the angle of x = 60° but not the value of x so use the given equation to find the value of x

3x + 15 = 60°

3x  - 15 = -15°

3x = 45

x = 15°

Answer:

Let's see the first two points: (-7, 5) and (-5, 9)

The line passes these points has a form of: y = Mx + b

=> 5 = (-7)M + b

   9 = (-5)M + b

Subtract the 1st equation from 2nd equation, we have:

4 = 2M

=> M = 2

Substitute M back into 1st equation:

=> 5 = (-7)*2 + b

=> b = 19

=> y = 2x + 19

or y - 5 = 2x + 14

or y - 5 = 2(x + 7)

=> Option A is correct

Hope this helps!

:)

Answer:

A

Step-by-step explanation:

The difference between the values of y are constant, that is

17 - 13 = 13 - 9 = 9 - 5 = 4

This indicates the relationship is linear.

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Calculate m using the slope formula

m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)

with (x₁, y₁ ) = (- 7, 5) and (x₂, y₂ ) = (- 5, 9) ← 2 ordered pairs from the table

m = \(\frac{9-5}{-5+7}\) = \(\frac{4}{2}\) = 2

Use any ordered pair from the table for (a, b)

Using (a, b) = (- 7, 5), then

y - 5 = 2(x - (- (- 7)) , that is

y - 5 = 2(x + 7) → A

Answer:

B.The exponent of the solution is –12, the difference of the original exponents.

C.The coefficient of the solution must be greater than or equal to one but less than 10.

D.The quotient is 3.0 ×

Step-by-step explanation:

The answer is B, C, D :)

Thanks to the person above me have a good day

Correct on edge 2022 :).

Answer:

E

Step-by-step explanation:

Using Pythagoras' identity in the right triangle

y² = x² + 4²

y² = x² + 16 ( take the square root of both sides )

y = \(\sqrt{x^2+16}\) → E

For Triangle FGH Value of y in terms of x will be \(\sqrt{x^2 + 16}\) .

The Pythagorean Theorem demonstrates how the side lengths of a right triangle can be calculated from the sum of the areas of three intersecting squares. This theorem is a very helpful tool that serves as the foundation for more intricate trigonometry ideas like the Pythagorean theorem's opposite.

Given, For FGH shown in figure Hyppotaneus of the triangle is y meters, the base of the triangle is x meters and the height of the triangle is 4 meters. From Pythagorean theorem

y² = x² + 4²

y² = x² + 16

y = \(\sqrt{x^2 + 16}\)

Therefore, the Value of y in terms of x for Triangle FGH will be \(\sqrt{x^2 + 16}\).

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When considering a set of tosses of two fair 4-sided dice, there are a total of 16 possible outcomes. Each die has four possible outcomes, and since there are two dice, we multiply 4 by 4 to get 16.

The probability of rolling any specific outcome is 1/16. This is because each outcome is equally likely to occur, and there are 16 total outcomes.

To calculate the probability of rolling a specific total, we can create a table of all the possible outcomes and their corresponding totals. For example, if we roll a 1 on both dice, the total would be 2. If we roll a 2 and a 3, the total would be 5.

Once we have the table, we can count how many times each total occurs and divide by the total number of outcomes (which is 16). This will give us the probability of rolling each total.

For example, there is only one way to roll a total of 2 (rolling two 1's), so the probability of rolling a total of 2 is 1/16. There are three ways to roll a total of 5 (1+4, 2+3, and 3+2), so the probability of rolling a total of 5 is 3/16.

In summary, the probability of each outcome when tossing a pair of fair 4-sided dice is 1/16, and the probability of each total can be calculated by creating a table and counting the number of times each total occurs.

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NPV (Net Present Value) is a widely-used financial calculation method that is used to determine the present value of an expected series of future cash flows. It is used in capital budgeting, which is the process of deciding which investments to make in a company. NPV is calculated by subtracting the initial cost of an investment from the present value of its expected future cash flows.

If the NPV is positive, then the investment is expected to be profitable. If it is negative, then the investment is not expected to be profitable. Mars Incorporated is considering launching a new fuel savings device called "Python" that attaches to electrically powered industrial vehicles and promises to save up to 15%. They need to evaluate whether it is a good investment. They will need to estimate the cash flows associated with the investment and discount them back to their present value using an appropriate discount rate.

The difference between the present value of the expected cash flows and the initial investment is the net present value (NPV). If the NPV is positive, then the investment is expected to be profitable, and Mars should go ahead with it. If the NPV is negative, then the investment is not expected to be profitable, and Mars should reconsider its decision. To calculate NPV, you first need to estimate the cash flows associated with the investment. This includes the initial cost of the Python device, the savings from fuel costs, and any additional expenses associated with the device. Once these cash flows have been estimated, they need to be discounted back to their present value using an appropriate discount rate. The discount rate is typically the cost of capital for the company. If the NPV is positive, it means that the present value of the expected cash flows is greater than the initial investment, and the investment is expected to be profitable. If the NPV is negative, then the present value of the expected cash flows is less than the initial investment, and the investment is not expected to be profitable.

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Answer:

Printing press

Step-by-step explanation:

Janet's print shop - 0.25*200=50+35=85

Printing press - 0.15*200=30+50=80

Answer: x = 1/2

We can find the local maximum of the function g(x) by finding the critical points and checking the sign of the derivative around those points.

g(x) = xe^(-2x)

g'(x) = e^(-2x) - 2xe^(-2x) = e^(-2x)(1-2x)

To find the critical points, we set g'(x) = 0:

e^(-2x)(1-2x) = 0

This equation is satisfied when 1 - 2x = 0, or x = 1/2.

To check whether this is a local maximum or not, we need to examine the sign of the derivative in the interval (0, 1/2) and (1/2, infinity).

For x < 1/2, g'(x) is positive, since e^(-2x) is always positive and 1 - 2x is negative. Therefore, g(x) is increasing in this interval.

For x > 1/2, g'(x) is negative, since e^(-2x) is always positive and 1 - 2x is positive. Therefore, g(x) is decreasing in this interval.

Therefore, x = 1/2 is a local maximum of g(x).

Answer: x = 1/2

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Answer:

63

Step-by-step explanation:

1/4 of 168 is 42 which is how many Boxes of Candy they sold

42 x 1.50 = 63

Answer:

From the sale of boxes of candy, the team made $63

Explanation:

We know that 3/4 of the sold items were chocolate bars. A fast trick to find 3/4ths, or 75%, of a number is to multiply it by 3 and divide by 4.

168 * 3 = 504

504 ÷ 4 = 126

Now, we do 168 - 126 to find the number of candy boxes.

168 - 126 = 42

So, the soccer team sold 42 boxes of candy. Since each box was $1.50, we just multiply

42 * 1.50 = 63

The soccer team made $63 dollars by selling candy boxes.

Note: This is just my way that I did quickly, there are many many other ways to do this. Try to find what's best for you.

The future value of the loan is approximately $10,070.29.

To find the interest on the loan, we can use the formula:Interest = Principal × Rate × Time

Given:

Principal (P) = $6000

Rate (R) = 8% per year (0.08 as a decimal)

Time (T) = 6 months (0.5 years)

Plugging in the values into the formula:

Interest = $6000 × 0.08 × 0.5 = $240

Therefore, the interest on the loan is $240.

To find the future value of the loan, we can use the formula for simple interest:

Future Value = Principal + Interest

Given:

Principal (P) = $6000

Interest = $240

Plugging in the values into the formula:

Future Value = $6000 + $240 = $6240

Therefore, the future value of the loan is $6240.

For the second scenario:

Given:

Principal (P) = $9275

Rate (R) = 7.57% per year (0.0757 as a decimal)

Time (T) = 13 months (13/12 years)

To find the interest, we can use the same formula:

Interest = Principal × Rate × Time

Plugging in the values into the formula:

Interest = $9275 × 0.0757 × (13/12) = $795.29

Therefore, the interest on the loan is approximately $795.29.

To find the future value of the loan, we can use the same formula as before:

Future Value = Principal + Interest

Plugging in the values into the formula:

Future Value = $9275 + $795.29 = $10,070.29

Therefore, the future value of the loan is approximately $10,070.29.

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After 10 days, the expected number of shoppers at the shopping mall is 163.

It is given that the number of shoppers increases daily by 5% from the number of shoppers the previous day.

As we can see that the increase in the number of shoppers is going to change every day, and the above case is compounded daily.

The formula of compound increase is

Amount = Base X (1 + r/n)ⁿˣ

where,

Base = original amount

r = rate of change

n = no. of times the change occurs in the time period

t = time

Here,

Base = 100

r = 5/100

n = 1, since it changes once every day

x = 10

Therefore we get

100 X (1 + 5/100)¹⁰

= 100 X 1.05¹⁰

162.88

Since the number of people cannot be in decimal,

the expected number of people is 163

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Answer:

68

Step-by-step explanation:

Use the formula provided...

6 and 11 are b1 and b2, and 8 is h.

So, 6+11 = 17

17/2 = 8.5

8.5*8 = 68

The probability that a person is a man given that they have high blood pressure is  0.46 or 46%. 

We are given that there are 123 ladies and 178 men within the bunch of volunteers for a clinical trial, and 54 of the ladies and 46 of the men have tall blood weights.

We are inquired to discover the likelihood that an arbitrarily selected volunteer who has a tall blood weight may be a man.

Let M be the occasion that a volunteer could be a man,

and H be the occasion that a volunteer has a tall blood weight.

We need to discover P(M|H), the likelihood that a volunteer could be a man given that they have tall blood weight.

By Bayes' hypothesis, we have:

P(M|H) = P(H|M) * P(M) / P(H)

Ready to find the probabilities on the right-hand side of this condition as taken after

P(H|M) = 46/178, the likelihood that a man has a tall blood weight

P(M) = 178/(123+178), the likelihood that a volunteer may be a man

P(H) = (54+46)/(123+178), the likelihood that a volunteer has tall blood weight

Substituting these values into the condition, we get:

P(M|H) = (46/178) * (178/(123+178)) / ((54+46)/(123+178))

P(M|H) =  46/100

P(M|H) = 0.46

Therefore, the likelihood that a haphazardly(randomly) chosen volunteer who has high blood weight could be a man is 0.46 or 46%. 

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Answer:

the y intercept is -3

Step-by-step explanation:

if you need an explanation lmk!

Answer:

y- intercept = - 3

Step-by-step explanation:

The y- intercept is where the line crosses the y- axis.

This occurs when the x- coordinate is zero

From the table

when x = 0 , then y = - 3 ← y- intercept

The portfolio weights for stock A and stock B are approximately 55.69% and 44.31%, respectively.

To calculate the portfolio weights for stock A and stock B, we need to determine the total value of the portfolio and the proportion of each stock's value within that total.

The total value of the portfolio can be calculated as follows:

Total value = (Number of shares of stock A × Price per share of stock A) + (Number of shares of stock B × Price per share of stock B)

Total value = (135 × $84) + (110 × $82)

Total value = $11,340 + $9,020

Total value = $20,360

Now, we can calculate the portfolio weights for each stock:

Weight of stock A = (Value of stock A ÷ Total value) × 100%

Weight of stock A = (($84 × 135) ÷ $20,360) × 100%

Weight of stock A = $11,340 ÷ $20,360

Weight of stock A ≈ 0.5569 or 55.69%

Weight of stock B = (Value of stock B ÷ Total value) × 100%

Weight of stock B = (($82 × 110) ÷ $20,360) × 100%

Weight of stock B = $9,020 ÷ $20,360

Weight of stock B ≈ 0.4431 or 44.31%

Therefore, the portfolio weights for stock A and stock B are approximately 55.69% and 44.31%, respectively.

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While Brian traveled, the pilot taught him A. how to steer a Cessna 406.

The Cessna 406 is a twin-engine aircraft that is commonly used for various purposes, such as air ambulance services, freight transport, and surveillance operations. Steering the aircraft is an essential skill that any pilot must learn in order to control the aircraft's direction of flight.

Learning how to steer a Cessna 406 would be an important skill for Brian to acquire if he was planning to become a pilot or work in the aviation industry.

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Answer:

Options (A), (B)

Step-by-step explanation:

Option A.

Two sides of the given triangle are equal. Therefore, the given triangle is an isosceles triangle.

Option (B).

Given triangle has a right angle. Therefore, it's a right triangle.

Option (C).

Only two sides of the given triangle are equal. Therefore, it's not an equilateral triangle.

Option (D).

Although this triangle has two acute angles (less than 90°) but the third angle is 90°. Therefore, this triangle is not an acute triangle. It's a right triangle.

Option (E).

A scalene triangle is a triangle having all sides different in measure but the given triangle is an isosceles triangle. Therefore, it's not a scalene.

Option (F).

Any angle of this triangle is not more than 90°. Therefore, the given triangle is not an obtuse triangle.

Answer:

$26.25 is the answer I believe

Answer:

\(54in^{3}\)

Step-by-step explanation:

The formula for the volume of a rectangular prism is:

A= lwh

So we just plug in those values.

A= 3*3*6

A= 9*6

A= 54in^3