plz give me correct answer and no spammng,alphabets,links,website,sorry,i don't know,have a great day,plz appreciate my work then I will answer if done immediatly reported also only answer if you have done this before or just ask your parents that is your answer correct

The standard deviation of the sample  = 28.

An indicator of how much a set of values vary or are dispersed is the standard deviation. When the standard deviation is low, the values tend to fall within a narrow range of the set's mean, while when it is high, the values tend to deviate from that mean more.

The standard deviation is a tool for calculating market volatility or the variation in asset prices from their mean. A high standard deviation indicates that prices are moving erratically and that an investment will indeed be risky. Low standard deviation indicates stable prices and low risk for investments.

A specimen of 196 observations has a variance of 784. determine the sample's standard deviation.

variance = 784

we have to find the stranded deviation:

stranded deviation  = √variance

                                  = √784

                                  =  28

The standard deviation of the sample  = 28.

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On solving the provided question we cans say that quadratic equation - x^2-5x-4 = 0 and x = 1 , 3

A quadratic equation is x ax2+bx+c=0, which is a quadratic polynomial in a single variable. a 0. The Fundamental Theorem of Algebra ensures that it has at least one solution since this polynomial is of second order. Solutions may be simple or complicated. An equation that is quadratic is a quadratic equation. This indicates that it has at least one word that has to be squared. The formula "ax2 + bx + c = 0" is one of the often used solutions for quadratic equations. where are numerical coefficients or constants a, b, and c. where the variable "X" is unidentified.

here, we have

quadratic equation -

x^2-5x-4 = 0

x(x-1) -3(x-3) =

(x-1)(x-3) = 0

x = 1 , 3

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The statement is generally true.

In materials science, the close-packing of atoms in crystal structures can affect the mechanical properties of the material, such as its ductility and ability to undergo plastic deformation.

In general, structures with closely packed planes (i.e., structures with a higher atomic packing factor) are more likely to undergo plastic deformation because the closely packed planes allow for more slip planes for atoms to move along without disrupting the overall crystal structure.

This means that when a force is applied to the material, the planes can slide more easily past one another, leading to plastic deformation.

In contrast, structures that are not closely packed (i.e., structures with a lower atomic packing factor) have fewer slip planes and are less likely to undergo plastic deformation. Instead, they may experience brittle fracture or other types of failure when subjected to stress.

However, it is important to note that the relationship between atomic packing and plastic deformation is complex and depends on a variety of factors, including the type of crystal structure, the presence of defects or impurities in the material, and the conditions under which the material is being deformed.

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Answer:

total number of marble=22

probability of picking 1 blue marble= 1/22

=45×10^-2

probability of getting a green ball= 5/21

= 238×10^-3

Answer:

14.55 :)

Step-by-step explanation:

Answer:

last answer

Step-by-step explanation:

Answer:

the exactly form i believe would be 1/64

and the decimal form would be 0.015625

The number of miles in the circumference of the circle on Earth parallel to the equator and passing through Lena, Wisconsin, is approximately 17,747.07 miles.

To calculate the circumference of the circle on Earth parallel to the equator and passing through Lena, Wisconsin, we need to determine the length of the circle's circumference at the given latitude.

Given:

Length of the Earth's equator = 25,100 miles

Latitude of Lena, Wisconsin = 45 degrees north

The circumference of a circle at a given latitude on a perfect sphere can be calculated using the formula:

Circumference = (Cos(latitude) * Earth's equator circumference)

First, we need to convert the latitude from degrees to radians:

Latitude in radians = 45 degrees * (π / 180)

Latitude in radians = π/4

Next, we can substitute the latitude in radians into the formula to calculate the circumference:

Circumference = (Cos(π/4) * 25,100 miles)

Using the value of the cosine of π/4 (which is √2 / 2), we have:

Circumference = (√2 / 2) * 25,100 miles

Simplifying:

Circumference ≈ 0.707 * 25,100 miles

Circumference ≈ 17,747.07 miles

Therefore, the number of miles in the circumference of the circle on Earth parallel to the equator and passing through Lena, Wisconsin, is approximately 17,747.07 miles.

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The value of natural logarithm of the given complex number is ln(-1.386 ob i21 + 1.386 oc ir + 1.386 Od 1.386) = ln(2.4) + i(54.74°).

The value of natural logarithm of -4 in the complex number system can be found by expressing -4 in polar form. We can write -4 as 4cis(π), where cis(π) is the complex number cos(π) + i sin(π). Now, applying the properties of logarithms, we can write:

ln(-4) = ln(4) + ln(cis(π)) = ln(4) + iπ

Therefore, the value of natural logarithm of -4 in the complex number system is ln(-4) = ln(4) + iπ.

It is important to note that the natural logarithm is not defined for negative real numbers, as it is a real-valued function. However, in the complex number system, we can still define the logarithm for all non-zero complex numbers.

In the given expression, we have -1.386 ob i21 + 1.386 oc ir + 1.386 Od 1.386. To find the value of natural logarithm of this complex number, we need to first express it in polar form. Using the Pythagorean theorem, we can find the magnitude of the complex number to be approximately 2.4. To find the angle, we can use the inverse tangent function, which gives us an angle of approximately 54.74 degrees.

Therefore, the complex number can be expressed as 2.4cis(54.74°). Now, using the properties of logarithms, we can write:

ln(-1.386 ob i21 + 1.386 oc ir + 1.386 Od 1.386) = ln(2.4) + ln(cis(54.74°)) = ln(2.4) + i(54.74°)

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Answer:

Step-by-step explanation:

Geoff is feeling peckish, so he decides to pop into the shop and grab some snacks. He picks up a packet of crisps for 25p, a can of soup for 68p and a watermelon for £1.47. He wonders why the watermelon is so cheap, but he doesn't question it. He goes to the cashier and hands over a £5 note. The customer behind Geoff wonders "how much change does he get back?"

To figure this out, we need to add up the price of the snacks and take it away from the money Geoff gave. We can use a dot to show the pence as parts of a pound. For example, 25p = 0.25 pounds.

The price of the snacks is:

0.25 + 0.68 + 1.47 = 2.40 pounds

The money Geoff gave is:

5.00 pounds

The change is:

5.00 - 2.40 = 2.60 pounds

So, Geoff gets £2.60 in change and a bargain watermelon.

Answer:

Answer:

2.60

Step-by-step explanation:

25+68+147=240

500-240=260

turn into pounds 2.60

Step-by-step explanation:

The midsegment linking the cartesian coordinates of two of a triangle's sides is parallel to the fourth aspect of the triangle, and its length is half that of the third side, according to the midsegment theorem.

The assertions that the Greek mathematician Pythagoras discovered the properties of right-angled triangles in the fifth century BC just did not match up, according to many. Some people think following commentary shows it was a joint effort among his disciples, the Pythagoreans.

Equilateral: equal angles and all three sides. Acute isosceles: two identical sides and angles, both of which are only about 90 degrees. Acute scalene has irregular sides and angles, all of which are under 90 degrees. Obtuse isosceles: two identical sides and angles, one of which is more than 90 degrees.

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The effect of treatments on blood potassium levels in freshwater mussels was evaluated using appropriate statistical analysis (e.g., ANOVA or Kruskal-Wallis test) on the data collected from three randomly assigned groups, allowing for the determination of significant differences among treatment groups.

Conduct the statistical analysis: Perform the chosen statistical test using the collected data. The analysis will calculate a test statistic and associated p-value, which quantifies the strength of evidence against the null hypothesis.

Determine the significance level: Set a significance level (e.g., α = 0.05) to determine the threshold for statistical significance. This represents the level of evidence required to reject the null hypothesis.

Evaluate the results: Compare the obtained p-value to the significance level. If the p-value is less than the chosen significance level, there is sufficient evidence to reject the null hypothesis and conclude that the treatments have an effect on blood potassium levels in freshwater mussels. Conversely, if the p-value is greater than the significance level, there is insufficient evidence to reject the null hypothesis, and it cannot be concluded that the treatments have an effect on blood potassium levels.

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Answer:

Solution. The domain of g(x) consists of all real numbers except x = 32, since that input value would cause us to divide by 0. Likewise, the domain of f consists of all real numbers except 1. So we need to exclude from the domain of g(x) that value of x for which g(x) = 1.

Step-by-step explanation:

Answer:

it would serve 36 people dry rice

Answer:

5x + 45

Step-by-step explanation:

distribute 5 to both x and 9 so multiply them both

Answer:

D is answer

Step-by-step explanation:

-2x + 2y = 20

2x = 40-3y

so -(40-3y)+2y =20

-40+3y+2y = 20

5y = 60

y = 12

2x = 40-3y

2x = 40-3(12)

2x = 40-36

2x = 4

x = 2

so x = 2 , y = 12

Answer:

15

Step-by-step explanation:

To find the rate of change, find the slope

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

        \(=\frac{35-20}{2-1}\\\\=\frac{15}{1}\\\\=15\)

Answer:

Part A: option C

Part B: option B

Step-by-step explanation:

The probability that the sample proportion will be within 0.03 of the population proportion is 0.9002 and the probability that the sample proportion will be within 0.05 of the population proportion is 0.9993.

a. The probability that the sample proportion will be within 0.03 of the population proportion is 0.9002. The sample size is 200. The population proportion is 0.30. The standard error of the sample proportion is,

\(\sigma p = \sqrt{[p(1 - p)/n]}\)

\(= \sqrt{0.30(1 - 0.30)/200}\)

= 0.0351

The sample proportion is normally distributed because the sample size is large. The z-score for a sample proportion is calculated as,

\(z = (p - P) / \sigma p\)

\(= (p - P) / \sqrt{P(1 - P)/n}\)

Where, P is the true population proportion.

z = (0.30 - P) / 0.0351

Now, we can use the z-table to find the probability that the sample proportion will be within 0.03 of the population proportion.

z = ±0.03

=> 0.30 - P = ±0.001053

=> P = 0.298947 or 0.301053

The probability that the sample proportion will be within 0.03 of the population proportion is the sum of the probabilities of z between -0.8577 and 0.8577. Using the z-table, the probability is 0.9002. Hence, the probability that the sample proportion will be within 0.03 of the population proportion is 0.9002.

b. The probability that the sample proportion will be within 0.05 of the population proportion is 0.9993. The sample size is n = 200. The population proportion, p is 0.30. The standard error of the sample proportion is,

\(\sigma p = \sqrt{[p(1 - p)/n]}\)

\(= \sqrt{0.30(1 - 0.30)/200}\)

= 0.0351

The sample proportion is normally distributed because the sample size is large. The z-score for a sample proportion is calculated as,

z = (0.30 - P) / 0.0351

Now, we can use the z-table to find the probability that the sample proportion will be within 0.05 of the population proportion.

z = (0.30 - P) / 0.0351

= ±0.05

=> 0.30 - P = ±0.001755

=> P = 0.298245 or 0.301755

The probability that the sample proportion will be within 0.05 of the population proportion is the sum of the probabilities of z between -1.4286 and 1.4286. Using the z-table, the probability is 0.9993. Hence, the probability that the sample proportion will be within 0.05 of the population proportion is 0.9993.

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Answer:

5 times

Step-by-step explanation:

Given that,

The population of town A is 4×10⁴

The population of town B is 2×10⁵

Let the population of town is B is x times of the town A. So,

\(A\times x=B\\\\x=\dfrac{B}{A}\\\\x=\dfrac{2\times 10^5}{4\times 10^4}\\\\x=5\)

It means that the population of town B is 5 times of the population of town  A.

Answer:

5 times you heard the man

Step-by-step explanation:

The perimeter of triangle JKL is  determined as 68 units.

The perimeter of triangle JKL is calculated as follows;

The perimeter of triangle JKL is the sum of all the distance round the triangle.

Perimeter = length JK + length LK + length JL

AL = CL = 12

Length LK = CL + CK = 12 + 8 = 20

JA = JB = 14

KB = CK = 8

Length JK = JB = KB = 14 + 8 = 22

Length JL = JA + AL = 14 + 12 = 26

The perimeter of triangle JKL is calculated as;

Perimeter = 20 + 22 + 26

Perimeter = 68 units.

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Answer:

I think it is b

Step-by-step explanation:

Answer:

B

graph B represents 1/2#1/6

1/2#1/6=3

\(\large\text{Hey there!}\)

\(\large\boxed{\mathsf{\dfrac{3x}{y}}}\\\\\\\large\boxed{= \mathsf{\dfrac{3(\bold{4})}{\bf 12}}}\\\\\\\large\boxed{\mathsf{= \dfrac{\bold{12}}{12}}}\\\\\\\large\boxed{\mathsf{= 12\div12}}\\\\\\\large\boxed{\mathsf{= \bf 1}}\\\\\\\large\text{Therefore, your answer is: \huge\boxed{\mathsf{1}}}\huge\checkmark\)

\(\large\text{Good luck on your assignment \& enjoy your day!}\)

~\(\frak{Amphitrite1040:)}\)

Hey there!

0.297 * 7.1 = 297 + 20,790/21.087

Well….

0.297 * 7.1

= 2.1087

297 + 20,790/21.087

= 2.97 + 985.915493

= 1282.915493

2.1087 ≠ 1282.915493

Thus, your answer is false

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

Step-by-step explanation:

Hey there!

The given points are; (1,2) and (-3,-9).

Use slope formula for finding the slope.

\(slope(m) = \frac{y2 - y1}{x2 - x1} \)

Put all values.

\(m = \frac{ - 9 - 2}{ - 3 - 1} \)

Simplify it.

\(m = \frac{ - 11}{ - 4} \)

Therefore, the slope is m= 11/4.

Hope it helps...

Answer:

4%

Step-by-step explanation:

Volume of sphere

v = (4/3)πr^3

Volume moon/ volume planet

We don't actually need the numeric value of the radius

just the 35% ratio

Radius of moon = .35 radius of planet

Vm/ Vp = (4/3)π(.35r)^3 / (4/3)π(r)^3

Cancel like terms

Vm / Vp = .35^3

Vm / Vp = 0.042875

Expressed as a percentage

Vm / Vp = 4.2875%

Rounded

Vm / Vp = 4%