SOME BODY HELP ME ASAPPPPP PLEASEEEE

Answer:

i. Mean = 11.2

ii. Variance = 14.17

iii. Standard deviation = 3.76

Step-by-step explanation:

i. Mean, m = \(\frac{sum of the values}{number of the values}\)

                = \(\frac{4+11+12+12+13+15}{6}\)

                = \(\frac{67}{6}\)

                = 11.2

The mean of the given data is 11.2

ii. Variance = \(\frac{sum(x_{i} - m)^{2}}{n-1}\)

where:   \(x_{i}\) is the value of the one observation, m is the sample mean and n is the number of data given.

                   = \(\frac{[(4-11.2)^{2}+(11-11.2)^{2} + (12-11.2)^{2} + (12-11.2)^{2} + (13-11.2)^{2} + (15-11.2)^{2}] }{6-1}\)

                   = \(\frac{[51.84+0.04+0.64+0.64+3.24+14.44]}{5}\)

                   = \(\frac{70.84}{5}\)

                   = 14.168

Variance = 14.17

iii. Standard deviation = \(\sqrt{Variance}\)

                                     = \(\sqrt{14.17}\)

                                     = 3.76

The statement "If dy/dt=f(t)g(y), the equilibrium solutions can be obtained by finding the solutions to f(t)=0" is not entirely correct.

In a differential equation of the form dy/dt = f(t)g(y), the equilibrium solutions are the constant solutions where dy/dt = 0. These occur when g(y) = 0.

To find the equilibrium solutions, we need to solve g(y) = 0. Once we have found these solutions, we can determine their stability by analyzing the sign of f(t) near these equilibrium values. If f(t) is positive near an equilibrium value, the solution is unstable (i.e., solutions near the equilibrium will move away from it). If f(t) is negative near an equilibrium value, the solution is stable (i.e., solutions near the equilibrium will move towards it).

So, while f(t) = 0 may be useful in some cases for finding equilibrium values, it is not the correct approach for finding all equilibrium solutions in a differential equation of the form dy/dt = f(t)g(y). The equilibrium solutions are found by solving g(y) = 0.

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Answer:
I agree due to everything stated there everything is perpendicular and is equal to the each other.

Give brainliest if you like the answer!

Answer:

I would have to say that the length of AC is 22.5

Answer:

1) AD = 9 in

2) DE = 9.25 in

3) ∠EDC = 36°

4) ∠AEB = 108°

5) 11.5 in

Step-by-step explanation:

1) AD = BC = 9in

2) AC = BD (diagonals are equal)

⇒ BD = 14.25

⇒ BE + DE = 14.25

⇒ 5 + DE = 14.25

DE = 9.25

3) Since AB ║CD,

∠ABE = ∠EDC = 36°

4) ∠ABE = ∠BAE = 36°

Also ∠ABE + ∠BAE + ∠AEB = 180 (traingle ABE)

⇒ 36 + 36 + ∠AEB = 180

∠AEB = 108

5) midsegment = (AB + CD)/2

= (8 + 15)/2

11.5

Answer:

Brainliest here!

Step-by-step explanation:

3 dozen cookies = 1.5 cups

one dozen cookies= 0.5 cups

5 dozen cookies = 2.5 cups of sugar

Answer:

B isa the answer for me it might be wrong for you or switch them

Step-by-step explanation:

The area of the polygon is 80 units².

What is a Polygon?

A polygon is a plane figure made up of line segments connected to form a closed polygonal chain. The segments of a closed polygonal chain are called its edges or sides.

Dividing the polygon into parts marked in the attached figure so as to calculate the area easily.

For triangle, DEF

Area = \(\frac{1}{2} bh\)

        = \(\frac{1}{2}\) × 3 × 4

       = 6 units²

For triangle BCD

Area = \(\frac{1}{2}bh\)

        = \(\frac{1}{2}\) × 2 × 4

        = 4 units²

For trapezoid ABFG,

Area = \(\frac{1}{2} (a + b) h\)

        = \(\frac{1}{2}\) × (5.5 + 12) × 8

        = 70 units²

Hence, total area = 6 + 4 + 70

                             = 80 units².

Therefore, the total area of the polygon is 80 units².

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a) The annual consumption of beef was above 21460 tons per year starting in year 2001 (rounded to the nearest whole year). b) The annual consumption of beef was below 21185 tons per year until the year 2016 (rounded to the nearest whole year).

To solve the given problem using a graphing method, we can graph the function U(t) = 5t^2 - 20t + 20759 on a calculator and determine the intervals where the function is above or below the given thresholds.

a) To find the years when the consumption of beef was greater than 21460 tons per year, we need to identify the intervals on the graph where the function U(t) is above 21460.

By graphing the function, we can see that the function is above 21460 in the interval [0.6, 4.3] (approximately) when rounded to one decimal place.

b) Similarly, to find the years when the consumption of beef was less than 21185 tons per year, we need to identify the intervals on the graph where the function U(t) is below 21185.

By graphing the function, we can see that the function is below 21185 in the interval [5.7, 18] (approximately) when rounded to one decimal place.

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Answer:

Following are the solution to the given question:

Step-by-step explanation:

For question 1:

Calculating the speed between A and B:

\(Time\ (t)= 1 \ hours\\\\Distance\ (d)= 10 \ km\\\\V=\frac{d}{t}=\frac{10}{1}= 10 \ kmph\)

For question 2:

Calculating the speed between B and C:

\(Time\ (t)= (2-1)=1 \ hours\\\\Distance\ (d)= (15-10)= 5\ km\\\\V=\frac{d}{t}=\frac{5}{1}= 5 \ kmph\\\)  

For question 3:

In this the speed between A and B is the double to speed between B and C.

Answer:

0.5x is going to be right

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

circumference can be found using formula 2 x pi x radius

radius of the entire trampoline = 7 ft

2 x 3.14 x 7 = 14 x 3.14 = 43.96

Rounded = 44.0 ft = B

Answer:

B

Step-by-step explanation:

The length around a circle, or the circumference, can be found with the formula \(\pi d\), where d is the diameter. Therefore, the length of the frame is \(\pi \cdot 14\approx 44\). Hope this helps!

If not explain what P! 0.03 really means. The student's explanation is not entirely accurate. The statement "the P-value was P! 0.03" means that the P-value is less than or equal to 0.03, rather than that there is only a 0.03 probability that the null hypothesis is true.

In statistical hypothesis testing, the P-value represents the probability of obtaining a result as extreme or more extreme than the one observed, assuming the null hypothesis is true. If the P-value is less than or equal to the significance level (usually set at 0.05), then we reject the null hypothesis and accept the alternative hypothesis.

Therefore, a P-value of 0.03 means that the observed data is statistically significant and that we can reject the null hypothesis.

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6x-2y=4xy

so this is the,correct answer your thinking of division

Answer:

0.0377358490566038 or 2/53

Step-by-step explanation:

Answer:

So if you take the diameter of the quotion of the Additional caustxof being to pig it is between 1 and 908

Answer:

5

Step-by-step explanation:

Work Shown:

L = (0,1)

N = (6,1)

m = slope of LN

m = (y2-y1)/(x2-x1) is the slope formula

m = (1-1)/(6-0)

m = 0/6

m = 0

Points L and N are on the same horizontal level, so line LN is horizontal and completely flat. We can see this by noting the y coordinates are both the same. All horizontal lines have a slope of 0 to indicate no change in y value (ie, no change in rise; no increase nor decrease)

Answer:

300

Step-by-step explanation:

you should muliple 60 and 5

If the intended margin of error equals 4 less than with a 0.95 probability, the sample size is 126.

The \(\alpha\) level is calculated by subtracting 1 from the confidence interval and dividing by 2.

\(\alpha\) = (1 - 0.95) ÷ 2

\(\alpha\) = 0.025

Find z inside the Z-table because it has a p-value of 1 - \(\alpha\).

So, z = 1.96 with a p-value = 1 - 0.025 = 0.975.

Now, consider that margin of error M.

M = z × (σ ÷ √n)

The standard deviation is determined as the square root of variance.

σ = √522 = 22.84

With a 0.95 probability, the sample size that requires to be accepted if the expected margin of error is 4 or less is,

The sample size of at least n, in which n is encountered when M = 4. So,

M = z × (σ ÷ √n)

4 = 1.96 × (22.84 ÷ √n)

4√n = 1.96 × 22.84

√n = (1.96 × 22.84) ÷ 4

√n = 11.1916

n = (11.1916)²

n = 125.25 ≈ 126

A sample size of at minimum 126 people is required.

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If two methods agree perfectly in a method comparison study, the slope equals 1.0 and the y-intercept equals 0.0. Therefore, option (b) is the correct answer.

In a method comparison study, the goal is to compare the agreement between two different measurement methods or instruments. The relationship between the measurements obtained from the two methods can be described by a linear equation of the form y = mx + b, where y represents the measurements from one method, x represents the measurements from the other method, m represents the slope, and b represents the y-intercept.

When the two methods agree perfectly, it means that there is a one-to-one relationship between the measurements obtained from each method. In other words, for every x value, the corresponding y value is the same. This indicates that the slope of the line connecting the measurements is 1.0, reflecting a direct proportional relationship.

Additionally, when the two methods agree perfectly, there is no systematic difference or offset between the measurements. This means that the line connecting the measurements intersects the y-axis at 0.0, indicating that the y-intercept is 0.0.

Therefore, in a perfect agreement scenario, the slope equals 1.0 and the y-intercept equals 0.0, which corresponds to option (b).

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Answer: The first and last table.

As the x increases by 2, the y goes down by 1, so both tables have the same rate of change which means they are the same function.

Tables 1 and 5 are equal.

Given are 5 tables in x and y with two values each.

We are to find out which two represent the same function.

As for every function, two points are given.

Let us compare the slopes of each function.

Slope=change in y coordinate/change in x coordinate

Table           Slope

I                 -0.5

2               -0.5

3               -0.5

4                 1

5                -0.5

Table 4 is eliminated now.

Though slopes are the same for 1 and 2,f(4) =8 and 5 different . Hence I and II cannot be the same.  Similarly for 2 different values are there in table 3,4,5.  Hence 3,4,5 cannot be pairwise equal.

We find that table I and table 5 have the same slope. Also when pairwise taken, (4,8) and (2,9) slope = -0.5

So table I = table 5

Hope this helps... Stay safe and have a great day/night!!! :D

An equivalent statement is CD overbar congruent to EF overbar.

What is a line segment?

The line segment has two fixed-length endpoints, A and B. The distance between this line segment's endpoints A and B is its length.

Here,

Line segment CD is congruent to line segment EF and in geometry, an overbar represents a line segment.

So, we can say that the CD overbar means line segment CD and the EF overbar means line segment EF.

Hence, An equivalent statement is CD overbar congruent to EF overbar.

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The correct answer is: d. {1/2, -1/2}.

To find the inverse image of 1 under the function f(x) = 2x|-1, we need to determine the values of x for which f(x) = 1.

Let's start by understanding the given function. The notation "2x|-1" represents the absolute value of 2x multiplied by -1.

To find the inverse image, we set f(x) equal to 1:

2x|-1 = 1

To solve this equation, we can consider two cases based on the absolute value:

Case 1: 2x|-1 = 1

In this case, the absolute value of 2x is positive (since it equals 1), so we can remove the absolute value notation:

2x = 1

Solving for x, we divide both sides by 2:

x = 1/2

Case 2: 2x|-1 = -1

In this case, the absolute value of 2x is negative (since it equals -1). To remove the absolute value notation, we need to negate the entire expression inside the absolute value:

-2x = -1

Dividing both sides by -2, we get:

x = 1/2

Therefore, in both cases, we found that x = 1/2 satisfies the equation f(x) = 1.

The correct answer is the set of values that satisfy the equation, which is {1/2}.

Therefore, the correct answer is: {1/2}.

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Answer:

see explanation

Step-by-step explanation:

(4 - 7y)(7 + 4y)

Each term in the second factor is multiplied by each term in the first factor, that is

4(7 + 4y) - 7y(7 + 4y) ← distribute parenthesis

= 28 + 16y - 49y - 28y² ← collect like terms

= 28 - 33y - 28y² or

- 28y² - 33y + 28 ← in standard form

C is the most accurate one i guess

Answer:

302 cm2

Step-by-step explanation:

A brainiest, rating, or thanks would be appreciated!

Have a great day, and let me know if you need more help

:)

do your own bro its your paper sheet

The range of probability is [0, 1]

Probability is an area of mathematics that deals with the occurrence of a random event. There are four varieties of probability: classical, empirical, subjective, and axiomatic. Since probability and possibility are equivalent, you may argue that it refers to the likelihood that a specific occurrence will occur.

Probability of an event is always greater than or equal to 0 & less than or equal to 1.

So, the range of probability is [0, 1]

Here,

a. minus−​1.5, because probability values cannot be less than 0. CORRECT

b. ​0.0002, because probability values must be rounded to two decimal places. WRONG 0.0002 is greater than 0 & less than 1

c. start fraction 64 over 25 end fraction 64 25​, because probability values cannot be greater than 1. CORRECT

d. ​33.3%, this is because probability values cannot be greater than 1. WRONG 33.3 % is less than 1 & greater than 0.

e. start fraction 320 over 1058 end fraction 320 1058​, because probability values cannot be in fraction form. f. ​0, because probability values must be greater than 0.WRONG 33.3 % Probability values can be written in fraction, But it's decimal value of fraction should be greater than 0 & less than 1.

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Answer:

There should be 3 quarters

Step-by-step explanation:

here's why....40 dimes is 4.00 plus 3 quarters is 4.75

The required number of quarters is given as 5, as of the given conditions.

Given that,
There are 40 dimes and quarters in a drawer. The total amount of the coins is $4.75.

In mathematics, it deals with numbers of operations according to the statements. There are four major arithmetic operators, addition, subtraction, multiplication and division,

Here,
let the number of dimes be d and the number of quarters be q,
According to the question,
d + q = 40 - - - - - (1)
0.10d + 0.25q = 4.75  - - - - - (2)
From equation 1 substitute x in equation 2
0.10[40 - q] + 0.25q = 4.75
4 - 0.10q + 0.25q = 4.75
0.15q = 0.75
q = 5
Out q in the equaiton 1,
d + 5 = 40
d = 35

Thus, the required number of quarters is given as 5, as of the given conditions.

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