please help math is annoying. i will mark brainliest

Answer:

perimeter=1/2*2πr

Step-by-step explanation:

1/2*2*3.142*10

=31.42

The Law of Large Numbers is a fundamental concept in probability theory and statistics stating the number of trials of a random event increases, the average of the outcomes approaches the expected value of the event. It's better to use 500 trials.

In other words, as we repeat an experiment a large number of times, the proportion of times that a certain outcome occurs will converge to its probability of occurrence. This is an important concept in statistical inference, as it helps to ensure that the results of a sample are representative of the population from which it was drawn.

Now, if you were using the relative frequency of an event to estimate the probability of the event, it would be better to use 500 trials rather than 100 trials. The reason is that the larger the number of trials, the more accurate the estimate of the probability is likely to be.

Using a larger sample size reduces the impact of random variation and provides a more precise estimate of the true probability. The Law of Large Numbers tells us that as the sample size increases, the relative frequency of the event should converge to the true probability, so a larger sample size will generally give a more reliable estimate

Learn more about Probability :

https://brainly.com/question/18882393

#SPJ4

Answer:

Angle 1 is 147 degrees

Step-by-step explanation:

When two angles form a linear pair, then we have the intersection of two lines

So what this mean is that both angles lie on a straight line and the sum of both angles is 180.

Let the angle 2 be x

We are told that angle 1 is 18 degrees less than 5 times the measure of angle 2;

What we are saying here is that; angle 1 = 5x - 18

So let’s add both together to give 180

angle 1 + angle 2 = 180

x + 5x -18 = 180

6x = 180+ 18

6x = 198

x = 198/6

x = 33 degrees

But angle 1 is 5x -18 = 5(33) -18 = 165 -18 = 147 degrees

Answer:

See Explanation

Step-by-step explanation:

The graphs are not given; however, I'll answer with the graph equation and also attach the graph...

Represent the boxes with x and the cash received with y.

When x = 5

y = 13.50

When x = 10

y = 27

First, we need to get the slope of the graph.

m = (y2 - y1)/(x2 - x1).

m = (27 - 13.5)/(10 - 5)

m = 13.5/5

m = 2.7

Next, is to determine the graph equation using

y - y1 = m(x - x1)

y - 13.5 = 2.7(x - 5)

y - 13.5 = 2.7x - 13.5

y = 2.7x - 13.5 + 13.5

y = 2.7x..

See Attachment for graph

Answer:

46 degrees

Step-by-step explanation:

180 - 102 - 32 equals to 46

Answer:

(B) -1

Step-by-step explanation:

We want to determine the rational number which is one tick mark to the left of  \(-\dfrac{3}{4}\) .

If the number is to the left, it must be less than \(-\dfrac{3}{4}\) .

Since there are 4 equal spaces between each number, the numbers between -1 and 0 are:

\(-1,-\dfrac{3}{4},-\dfrac{2}{4},-\dfrac{1}{4},0\)

We can then see that the number one tick to the left of  \(-\dfrac{3}{4}\) is -1.

The correct option is B.

Answer:

B?????

Step-by-step explanation:

Area = ∫[0, 1] (upper curve - lower curve) dy

The upper curve is y - 1/x, and the lower curve is y = 1/x^2.

Area = ∫[0, 1] (y - 1/x - 1/x^2) dy

Evaluate this integral within the given limits of integration to find the area of the region.

The curves provided are:

y - 1/x

y = 1/x^2

x = 6

Let's find the points of intersection between the curves:

Setting the two equations equal to each other, we have:

1/x^2 = 1/x

To simplify the equation, we can multiply both sides by x^2:

1 = x

So the point of intersection between the curves y - 1/x and y = 1/x^2 occurs at (1, 1).

Now, let's sketch the region enclosed by the curves:

Curve y - 1/x:

The curve y - 1/x represents a hyperbola that approaches the x-axis as x approaches positive or negative infinity. It intersects the x-axis at x = 1. The curve extends towards positive and negative y-values.

Curve y = 1/x^2:

The curve y = 1/x^2 is a downward-opening hyperbola. It approaches the x-axis as x approaches positive or negative infinity. The curve has asymptotes at x = 0 and does not intersect the x-axis.

Line x = 6:

The line x = 6 is a vertical line passing through x = 6.

To determine whether to integrate with respect to x or y, we need to consider the orientation of the region. Looking at the given curves, it is clear that the region is vertically bounded. Therefore, we'll integrate with respect to y.

To find the area of the region, we need to determine the limits of integration. The region is bounded by the curves y - 1/x and y = 1/x^2, and it extends from the y-axis to the point of intersection at (1, 1). Therefore, the limits of integration for y are from 0 to 1.

Now, let's calculate the area using the definite integral:

Area = ∫[0, 1] (upper curve - lower curve) dy

The upper curve is y - 1/x, and the lower curve is y = 1/x^2.

Area = ∫[0, 1] (y - 1/x - 1/x^2) dy

Evaluate this integral within the given limits of integration to find the area of the region.

learn more about integration here:

https://brainly.com/question/31744185

#SPJ11

The region enclosed by the curves y = 1/x, y = 1/\(x^2\), and x = 6 can be found by integrating with respect to x. The region lies in the first quadrant and is bounded by the curves and the line x = 6.

To sketch the region enclosed by the curves, we can start by plotting the graphs of y = 1/x and y = 1/\(x^2\). The curve y = 1/x represents a hyperbola that passes through the points (1, 1), (2, 0.5), (3, 0.33), and so on. The curve y = 1/\(x^2\) is a hyperbola that approaches the x-axis as x increases. The line x = 6 is a vertical line passing through x = 6.

To find the region of the area enclosed by these curves, we need to determine the limits of integration. The region lies to the right of the y-axis (x > 0) and is bounded by the curves y = 1/x and y = 1/\(x^2\). The left boundary of the region is the curve y = 1/x, and the right boundary is the curve y = 1/\(x^2\). The lower boundary is the x-axis, and the upper boundary is the curve y = 1/x.

To calculate the area of this region, we can integrate with respect to x. The limits of integration are x = 1 (the intersection point of the curves y = 1/x and y = 1/\(x^2\)) and x = 6 (the given line). The integral that represents the area is ∫[1, 6] (1/x - 1/\(x^2\)) dx. By evaluating this integral, we can find the area of the region enclosed by the given curves.

Learn more about quadrant here:

https://brainly.com/question/26426112

#SPJ11

The surface area of the prism is 78 square units, which corresponds to option A.

You provided three dimensions: 5 units, 3 units, and 3 units. I assume these are the dimensions of a rectangular prism.

Let's label the dimensions: length (l) = 5 units, width (w) = 3 units, and height (h) = 3 units.

There are two bases, and their areas are equal:

Base Area = l * w = 5 * 3 = 15 square units

There are also three pairs of lateral faces. The areas of the lateral faces are:

Two faces with dimensions l and h: 2 * (l * h) = 2 * (5 * 3) = 30 square units

Two faces with dimensions w and h: 2 * (w * h) = 2 * (3 * 3) = 18 square units

Now, add the areas of all the faces together:

Surface Area = Base Area * 2 + Lateral Area = 15 * 2 + 30 + 18 = 30 + 30 + 18 = 78 square units

So, the surface area of the prism is 78 square units, which corresponds to option A.

Read more on prism here:https://brainly.com/question/23963432

#SPJ1

Answer:

a b c d are the answers

Step-by-step explanation:

Answer:

x = -12

Step-by-step explanation:

First, move the constant to the right and change its sign.

-3x = 30 + 6

Next, add the numbers

-3x = 36

Lastly, divide both sides by -3

x = -12

The ladder on pulling 6 feet father from the house now reaches 45.83 feet, which is lower than previous height.

The distance between ladder and house, the distance till ladder reaches and length of ladder given by Pythagoras theorem. The distance till ladder reaches is perpendicular, ladder is hypotenuse and the base is horizontal distance between the two. So, finding the base first.

Base² = 50² - 48²

Base² = 2500 - 2304

Base² = 196

Base = ✓196

Base or horizontal distance = 14 feet.

Now, on moving 6 feet, the horizontal distance will be 14 + 6 = 20 feet. Finding the new height or perpendicular now.

50² = 20² + Perpendicular²

Perpendicular² = 2500 - 400

Perpendicular² = 2100

Perpendicular = 45.83 feet

Hence, the ladder now reached to 45.83 feet height of the house.

Learn more about Pythagoras theorem -

https://brainly.com/question/343682

#SPJ4

Answer:

99.47

Step-by-step explanation:

86.50/15 =

+86.50 =

99.47

Chi-squared goodness of fit test to determine equality of complaint probability in 5 industries.

This question seems to be asking for a chi-squared goodness of fit test to determine if there is evidence to suggest that the probability of a complaint is the same for all five industries.

Here's how you could perform the hypothesis test:

H0: For each of the five industries, the likelihood of a complaint is the same.

Ha: For at least one industry, there are variable odds of receiving a complaint.

Test-statistic:

-value:

Conclusion:

I hope that helps! If you have the data and would like to perform the test and find the test-statistic and -value, I'd be happy to assist you further.

Learn more about probability here:

https://brainly.com/question/14289833

#SPJ4

Answer:

25%

Step-by-step explanation:

The probability of selecting a point in the green sector is 1/4 or 0.25.

The area of a circle with radius 6 inches is given by the formula A = πr², where r is the radius of the circle.

Substituting r = 6, we have A = π(6)² = 36π square inches.

The area of a sector of a circle with central angle θ and radius r is given by the formula A = (θ/360)πr².

Substituting θ = 90 and r = 6, we have A = (90/360)π(6)² = 9π square inches.

Therefore, the probability of selecting a point in the green sector is given by the ratio of the area of the green sector to the total area of the circle:

P(green) = (area of green sector) / (total area of circle)

= (9π square inches) / (36π square inches)

= 1/4

Thus, the required probability is 1/4 or 0.25.

Learn more about probability here:

brainly.com/question/11234923

#SPJ1

Answer:

x^2 +6x +10xi -16 +30i

Step-by-step explanation:

(x + (3+5i))^2

Rewriting as

(x + (3+5i))  (x + (3+5i))

Let 3+5i = m

(x + m)  (x + m)

FOILing

x^2 + xm+xm+m^2

x^2 +2xm + m^2

Replacing m with 3+5i

x^2 +2x (3+5i) +(3+5i)^2

Distribute

x^2 +6x +10xi +(3+5i)^2

Now FOIL (3+5i)^2

( 3+5i) ( 3+5i)

 3*3+ 3*5i + 3*5i+ 25i^2

= 9 +15i+15i +25(-1)

9+30i -25

-16 +30 i

Replacing that in the equation

x^2 +6x +10xi -16 +30i

Answer:

x² + 6x + 10xi -16 + 30i

Step-by-step explanation:

(x + (3 + 5i) )²

use the binomial theorem:

(a + b)² = a² + 2ab + b² to expand (x + (3 + 5i) )²

substitute the values,

x² + (6 + 10i)x + (-16 + 30i)

therefore

x² + 6x + 10xi -16 + 30i

An equation of the question is 250 × 0.94^n = 150 and in approx 8 years it will have about 150 students.

The population of its high school decreases by 6% each year.

The senior class has 250 students now.

Each year decrease in population = 6% = 0.06

So it can be = 1 - 0.06 = 0.94

Total student now = 250

Let n be the number of years before the class will have  students.

So the equation should be = 250 × 0.94^n

After years left students = 150.

Now the equation should be

250 × 0.94^n = 150

Now solving the equation.

Divide by 250 on both side, we get

0.94^n = 150/250

0.94^n = 3/5

Taking log on both side, we get

log(0.94^n) = log(3/5)

Using the formula log(m^n) = n logm and log(m/n) = log m - log n

n log(0.94) = log3 - log5

Now finding the value of log using calculator

n (-0.062) = 1.099 - 1.61

(-0.062)n = -0.511

Divide by (-0.062) on both side, we get

n = 8.242

To learn more about forming the equation link is here

brainly.com/question/22340388

#SPJ4

The complete question is:

As a town gets smaller, the population of its high school decreases by 6% each year. The senior class has 250 students now. In how many years will it have about 150 students? Write an equation. Then solve the equation without graphing. Write an equation to represent this situation. Let n be the number of years before the class will have  students.

The average number of hours of daylight in Madrid is approximately 12.01 hours.

To find the average number of hours of daylight in Madrid, we need to integrate the formula for H over the range of days in a year and divide the result by the number of days in a year.

The formula for H is H=12+2.4sin(0.0172(t−80)).

We can integrate this formula over the range of days in a year as follows:

\($\int_{0}^{364} H dt = \int_{0}^{364} (12+2.4\sin(0.0172(t-80))) dt$\)

We can simplify this integral by using the fact that the integral of sin(x) over one period is zero, and the period of sin(0.0172(t−80)) is 2π/0.0172, which is approximately 365. Therefore, we have:

\($\int_{0}^{364} H dt = \int_{0}^{364} 12 dt = 12(365) = 4380$\)

Dividing this result by the number of days in a year, we get:

Average hours of daylight = 4380/365 ≈ 12.01 hours.

To learn more about average number

https://brainly.com/question/21681743

#SPJ4

Answer:

Step-by-step explanation:

loss amount=Rs 50000-Rs 45000

=Rs 5000

loss%=loss amount/original amount100%

=5000/50000*100

=500000/50000

=10%

Answer:

\(\mu=-4\)

Step-by-step explanation:

We know that \(\overline{PR} \perp \overline{QR}\).

Since \(\overline{PR}\) is horizontal, \(\overline{QR}\) is vertical. Therefore, \(\mu=-4\).

Answer:

500=D 100=M

Step-by-step explanation:

I hope that helps :D

Answer:

Answer of 3 is 5/4. and of no 4 is -11/-26. I think the image will help you.

Formula for slope is y2-y1/x2-x1

1. The ratio of shirts Pete pays for to all shirts is 1000.

2. Pete would pay Ana $8.33 for each shirt.

3. Pete would pay Jun $9600 for the shirt.

To determine what Pete would pay Ana for the shirts, we can use the "Buy 5, Get 1 Free" discount. The ratio of shirts Pete pays for to all the shirts Pete gets is 5:6 (5 shirts paid, and 1 shirt received for free).

To fill in the statements:

1. The ratio of shirts Pete pays for to all the shirts Pete gets is 5:6 of 1200 is ____.

To find the missing value, we can set up the following equation:

5/6 * 1200 = x

Solving for x, we have:

x = (5/6) * 1200 = 1000

So, the ratio of shirts Pete pays for to all the shirts Pete gets is 5:6 of 1200 is 1000.

2. ___ × $10 = $

Pete pays $10 for each shirt. Since the ratio is 5:6, the missing value can be calculated as follows:

5/6 * $10 = $8.33 (rounded to two decimal places)

Therefore, Pete would pay Ana $8.33 for each shirt.

3. What would Pete pay Jun for the shirt?

Pete would pay Jun $8 for each shirt. Since Pete needs 1200 shirts, we can calculate the total amount he would pay Jun as follows:

1200 x $8 = $9600

Therefore, Pete would pay Jun $9600 for the shirts.

Learn more on ratio here;

https://brainly.com/question/2328454

#SPJ1

False. The slope of the line is actually -0.5.

Let's determine the slope of the line that passes through the points (20, 5) and (10, 10). To find the slope, we can use the formula:

Slope (m) = (y2 - y1) / (x2 - x1)

Plugging in the coordinates of the two points, we get:

m = (10 - 5) / (10 - 20) = (5) / (-10) = -1/2

The slope of the line is -1/2. Therefore, the statement "If a line passes through the points (20, 5) and (10, 10), then the slope of the line is -2" is FALSE.

Learn more about slope here: brainly.in/question/49507300

#SPJ11

Answer:

more than 12 classes

Step-by-step explanation:

Answer:

1. 458 - 247 = 211

2. 58.92 - 43.87 = 15.05

3. 51/8 - 15/8 = 4.5

Here you go ! Hope this helps !

Answer:

1. 458 - 247 = c

2. 58.92 - 43.87 = c

3.\(\frac{51}{8}\) - \(\frac{15}{8}\) = c

Step-by-step explanation:

Hope this helps! <3

Answer:

8 : 3

3 : 8

8 : 11

Step-by-step explanation:

Answer:

A) 8 : 3

B) 3 : 8

C) 3 : 11 [water + drink mix = 3 + 8 = 11]

D) 8 : 11

Answer:

W=91.2

Step-by-step explanation:

7.6=1212⋅7.6=12⋅12

=91.2

have a good day