need help on this asap pleasee:((

Answer:

Associative property of addition

Step-by-step explanation:

To “associate” means to connect or join with something. According to the associative property of addition, the sum of three or more numbers remains the same regardless of how the numbers are grouped.

While a common rule of thumb is to have a minimum sample size of 100 for continuous data to be statistically significant, the actual appropriate sample size may vary depending on the specific study design and research question. Option(D)

In statistics, the term "statistical significance" refers to whether an observed effect or relationship in the data is likely to be real and not just due to random chance. To determine statistical significance, we often perform hypothesis testing.

The sample size is a crucial factor in hypothesis testing. A larger sample size generally provides more reliable and precise estimates of population parameters and increases the statistical power of the test. With a larger sample size, even smaller effects or differences between groups can become statistically significant.

While there is no hard and fast rule for the minimum sample size to achieve statistical significance, a common guideline is to aim for at least 30 samples. This guideline is often used in the context of the Central Limit Theorem, which states that the sampling distribution of the sample mean becomes approximately normally distributed with a mean equal to the population mean and a standard deviation equal to the population standard deviation divided by the square root of the sample size.

In practice, the appropriate sample size depends on various factors, including the nature of the data, the effect size being studied, the desired level of confidence, and the statistical test used. Researchers often conduct sample size calculations based on these factors before conducting their studies to ensure they have an adequate sample size to achieve meaningful results and detect significant effects if they exist.

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Answer:

\(12w^7 z^6\)

Step-by-step explanation:

\(2w^5 z(6w^2 z^5)=(2)(6)w^5 w^2 z^5 z=12w^7 z^6\)

Answer:

x = 11

z = 86

Step-by-step explanation:

8x + 6 and 10x-16 are vertical angles

Vertical angles are pairs of angles that are opposite each other and have the same vertex, or point of intersection. They are formed when two lines intersect at a point, and are always congruent, or of equal measure.

To solve this equation, we need to isolate the variable x on one side of the equation. To do this, we can start by subtracting 6 from both sides of the equation:

8x + 6 - 6 = 10x - 16 - 6

8x = 10x - 22

Now we can subtract 8x from both sides of the equation:

8x - 8x = 10x - 22 - 8x

0 = 2x - 22

To solve for x, we can add 22 to both sides of the equation:

0 + 22 = 2x - 22 + 22

22 = 2x

Finally, we can divide both sides of the equation by 2 to find the value of x: 22 / 2 = 2x / 2

x = 11

Therefore, the solution to the equation is x = 11.

Now that we have x, z is a supplementary angle to 8x + 6 (or you could do 10x - 16)

Supplementary angles are pairs of angles that add up to 180 degrees. They are formed when two lines intersect at a point, and the angles formed at the intersection are supplementary.

First plug in x, 8x + 6 = 8(11) + 6 = 88 + 6 = 94

180 - 94 = z

z = 86

Answer:

Number of cm= 40 cm

Step-by-step explanation:

Giving the following information:

3 cm equals 45 kilometers

1 cm= 45 /3 = 15km

We need to determine how many centimeters represents 600 km. We will use the following formula:

Number of cm= total km / km per one cm

Number of cm= 600 / 15

Number of cm= 40 cm

The amount spent on brother is $16, on sister is $26 and that on wife is $58.

According to the question,

We have the following information:

Mark is buying Christmas presents for members of his family. He wants to spend $10 less on his brother than he spends on his sister, and six dollars more than twice the amount he spends on his sister on his wife. And Mark

has $100 to spend.

Let's take the amount spent on sister to $s.

Amount spent on brother = $(s-10)

Amount spent on wife = $(6+2s)

So, we have the following expression:

s+s-10+6+2s = 100

4s-4 = 100

4s = 104

s = 104/4

s = $26

Amount spent on brother = 26-10 = 16

Amount spent on wife = 6+2*26

Amount spent on wife = 6+52

Amount spent on wife = $58

Hence, the amount spent on brother is $16, on sister is $26 and that on wife is $58.

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The value of the equation is A = 1/2

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

A = ( 1/5 )r + 9/20   be equation (1)

On simplifying the equation , we get

when r = ( 1/4 )

Substituting the value of r in the equation , we get

A = ( 1/5 ) ( 1/4 ) + 9/20

A = ( 1/20 ) + ( 9/20 )

On further simplification , we get

A = 10/20

A = 1/2

Hence , the equation is A = 1/2

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The minimum sample size needed to estimate μ for the given values of c, o, and E is 100

The minimum sample size needed to estimate μ for the given values of c, o, and E is 100

We use the formula

n= (zc/E)2σ2

Where,

n = sample size

zc = The minimum sample size needed to estimate μ for the given values of c, o, and E is 100

E = margin of error

σ = standard deviation

Substituting the given values,

n= [(1.96*0.95)/1]2*5.72

n= 95.29

Therefore, the minimum sample size n equals 96 (rounded up to the nearest whole number).

The minimum sample size needed to estimate μ for the given values of c, o, and E is 100

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The decision alternative that should be selected under the maxmax criterion is A2.

To determine the decision alternative under the maxmax criterion, we need to identify the maximum payoff for each alternative and select the alternative that yields the highest maximum payoff across all states of nature.

Calculate the maximum payoff for each alternative:

For Alternative A1: Maximum payoff is 6 (State #2)

For Alternative A2: Maximum payoff is 7 (State #1)

For Alternative A3: Maximum payoff is 6 (State #3)

Compare the maximum payoffs for each alternative and select the alternative with the highest maximum payoff. In this case, Alternative A2 has the highest maximum payoff of 7.

Based on the maxmax criterion, the decision alternative to select is A2, which corresponds to leasing a computer. This decision is made under the assumption of maximizing the best possible outcome across all states of nature.

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Answer:

40°

Step-by-step explanation:

The measure of the right angle is 90°.

The measures of the angles 10° and 2x add up to the measure of the right angle.

2x + 10° = 90°

2x = 80°

x = 40°

It is claimed that the sample of participants is generalizable since it reflects the characteristics of the population.

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Answer:-16.4195 US$

Step-by-step explanation:

Histograms generally do not reveal the option b. exact data range.

The term "histogram" refers to a visual representation of data points arranged into user-defined ranges. The histogram, which resembles a bar graph in appearance, condenses a data series into an understandable visual by taking many data points and organizing them into logical ranges or bins.

The histogram is one of the most popular graphing tools. It is used to present summary summaries of continuous or discrete data that have been interval scaled. The main characteristics of the data distribution are frequently illustrated using it as a practical example.

To create a histogram, the data must be divided into class intervals. Make a tally to show the frequency (or relative frequency) of each interval's data. The frequency in a particular class is divided by the total number of observations to determine the relative frequency.

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To write an expression equal to logx(6), we need to understand what logarithm means. A logarithm is the inverse operation of exponentiation. It means that if we have an expression like x = a^b, we can find the value of b by taking the logarithm of x to the base a.

The expression loga(x) = b represents the value of the exponent that gives us x when a is raised to that power.

Now, to find an expression equal to logx(6), we need to determine the base of the logarithm. If the base is not specified, we assume it to be 10. Therefore, the expression logx(6) is equivalent to log10(6) / log10(x) (using the change of base formula). This expression represents the logarithm of 6 to the base x. In other words, it is the exponent to which x must be raised to get 6.

Alternatively, we can use natural logarithms (logarithms to the base e) to write the expression. In this case, logx(6) is equivalent to ln(6) / ln(x). The expression ln(6) represents the natural logarithm of 6, which is approximately equal to 1.792. This expression gives us the exponent to which e (the mathematical constant) must be raised to get 6.

In summary, the expression equal to logx(6) can be written as log10(6) / log10(x) or ln(6) / ln(x).

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Angle ACD is congruent to angle ADC by transitive equality if angles 1 and 2 are both ACD because angle ACB is congruent to angle ADE in the step above. Therefore, angle 1 equals angle 2, as you can see.

An isosceles triangle in geometry is a triangle with two equal-length sides. It can be stated as having exactly two equal-length sides or at least two equal-length sides, with the latter definition containing the equilateral triangle as an exception.

Here,

Given that segments AB and AE are congruent, the triangle ABE is required to be isosceles by definition.

As a result, angle ABC must be similar to angle AED, again in accordance with the definition of an isosceles triangle.

Consequently, triangle ABC must be congruent to triangle AED by SAS as you have been informed that segments BC and DE are congruent. Right now, it's unclear to you whether angle 1 is ACB or ACD.

Assuming it is ACB, CPCT shows that ACB is congruent to ADE. Angle 1 equals angle 2, so there you have it. Since angle ACB is supplementary to angle ACD and angle ADE is supplementary to angle ADC.

Since angle ACB is congruent to angle ADE from the step above, angle ACD is congruent to angle ADC by transitive equality if angle 1 and angle 2 are both ACD. Angle 1 equals angle 2, so there you have it.

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Using double-colon notation, IPv6 numbers:

a. 5355:4821:0000:0000:0000:1234:5678:FEDC - 5355:4821::1234:5678:FEDC.

b. 0000:0000:0000:1234:5678:FEDC:BA98:7654 - ::1234:5678:FEDC:BA98:7654.

c. 1234:5678:ABCD:EF12:0000:0000:1122:3344 - 1234:5678:ABCD:EF12::1122:3344.

Double-colon notation is a shorthand method used to represent consecutive blocks of zeros in an IPv6 address. It is denoted by two colons (::) in the address. The double-colon can only be used once in an IPv6 address.

a. The IPv6 address 5355:4821:0000:0000:0000:1234:5678:FEDC can be represented using double-colon notation as 5355:4821::1234:5678:FEDC. The double-colon replaces the consecutive blocks of zeros in the middle of the address.

b. The IPv6 address 0000:0000:0000:1234:5678:FEDC:BA98:7654 can be represented using double-colon notation as ::1234:5678:FEDC:BA98:7654. The double-colon replaces the leading blocks of zeros in the address.

c. The IPv6 address 1234:5678:ABCD:EF12:0000:0000:1122:3344 can be represented using double-colon notation as 1234:5678:ABCD:EF12::1122:3344. The double-colon replaces the consecutive blocks of zeros in the middle of the address.

In summary, double-colon notation is a convenient way to represent consecutive blocks of zeros in an IPv6 address. It helps to simplify and shorten the representation of long IPv6 addresses.

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The wet towel hung on a clothesline will lose 90% moisture after 2.57 hours, based on the proportional rate of evaporation.

A proportional rate refers to a rate that is constant or proportional to the initial value.

Proportional rates are expressed as percentages of the proportions compared to the whole values.

The time it takes the wet towel to lose 35% moisture = 1 hour

Let the hours or time when it will lose 90% moisture = x

The percentage of  moisture lost after x hours = 90%

Proportional rate of moisture loss = 0.35 (35%) per hour

x = 90%/35%

x = 2.57 hours

Thus, proportionately, after 2.57 hours, the wet towel must have lost 90% of its moisture since it could lose 35% after 1 hour.

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Problem 6

It's not clear what the instructions are, but I'm assuming your teacher wants you to rationalize the denominator.

If so, then we could have these steps

\(\sqrt{\frac{3\text{x}}{7}}\\\\\frac{\sqrt{3\text{x}}}{\sqrt{7}}\\\\\frac{\sqrt{3\text{x}}*\sqrt{7}}{\sqrt{7}*\sqrt{7}}\\\\\frac{\sqrt{3\text{x}*7}}{(\sqrt{7})^2}\\\\\frac{\sqrt{21\text{x}}}{7}\\\\\)

In the third step, I multiplied top and bottom by \(\sqrt{7}\) so that the denominator can get rid of the square root.

======================================================

Problem 7

We'll follow the same idea for this problem.

\(\sqrt{\frac{5m^2}{2}}\\\\\frac{\sqrt{5m^2}}{\sqrt{2}}\\\\\frac{\sqrt{5m^2}*\sqrt{2}}{\sqrt{2}*\sqrt{2}}\\\\\frac{\sqrt{5m^2*2}}{(\sqrt{2})^2}\\\\\frac{\sqrt{10m^2}}{2}\\\\\frac{\sqrt{10}*\sqrt{m^2}}{2}\\\\\frac{m\sqrt{10}}{2}\\\\\)

Where m is nonnegative.

In the second to last step, I split up the root so I could use the rule \(\sqrt{x^2} = x \text{ when } x \ge 0\)

======================================================

Problem 8

\(\sqrt{\frac{12\text{x}^3}{5}}\\\\\frac{\sqrt{12\text{x}^3}}{\sqrt{5}}\\\\\frac{\sqrt{12\text{x}^3}*\sqrt{5}}{\sqrt{5}*\sqrt{5}}\\\\\frac{\sqrt{12\text{x}^3*5}}{(\sqrt{5})^2}\\\\\frac{\sqrt{60\text{x}^3}}{5}\\\\\frac{\sqrt{4\text{x}^2*15\text{x}}}{5}\\\\\frac{\sqrt{4\text{x}^2}*\sqrt{15\text{x}}}{5}\\\\\frac{\sqrt{(2\text{x})^2}*\sqrt{15\text{x}}}{5}\\\\\frac{2x\sqrt{15\text{x}}}{5}\\\\\)

where x is nonnegative.

\( \huge \bold{answer}\)

===================================================

Explanation:

The coefficients of each term are 3 and 5. They are the first things mentioned in each parenthesis grouping. The coefficients multiply to 3*5 = 15. This is the coefficient of the final answer.

The 'a' terms are a^2 and a^3. They multiply to a^2*a^3 = a^(2+3) = a^5. Add the exponents because we're using the rule a^b*a^c = a^(b+c). The base must be the same for this rule to apply.

The b terms are b^7 and b^8. They multiply to b^7*b^8 = b^(7+8) = b^15

--------

To summarize

This is how we end up with 15a^5b^15 as the final answer

The factor of the expression using linear interpolation is 208.12 and 11,110.41

Linear interpolation is a method of curve fitting using linear polynomials to construct new data points within the range of a discrete set of known data points.

Now, The linear interpolation is given as:

1. (F/P,17%,34)

2. (A/G,23%,45)

Now, According to the question:

The factor is then calculated as:

\(Factor=(1+17\)%\()^3^4\)

Express 17% as decimal

\(Factor=(1+0.17)^3^4\)

Take the sum of 1 and 0.17

\(Factor=(1.17)^3^4\)

Evaluate the exponent

Factor = 208.12

2.The factor is then calculated as:

\(Factor=(1+23\)%\()^4^5\)

Express 23% as decimal

\(Factor=(1+0.23)^4^5\)

Take the sum of 1 and 0.23

\(Factor=(1.23)^4^5\)

Evaluate the exponent

Factor = 11,110.41

Hence, the factor of the expression using linear interpolation is 208.12 and 11,110.41

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Answer:

b. $9.96

Step-by-step explanation:

To solve this problem, let's first calculate how much Nina charges for shipping per painting. We'll divide the total shipping cost by the number of paintings sold.

When Nina sells 4 paintings and charges a total of $9.96 for shipping:

Shipping cost per painting = $9.96 / 4 = $2.49

When Nina sells 8 paintings and charges a total of $19.92 for shipping:

Shipping cost per painting = $19.92 / 8 = $2.49

We can see that regardless of the number of paintings sold, Nina charges $2.49 for shipping per painting.

Now let's calculate how much Nina charges for shipping 20 paintings and 16 paintings:

Shipping cost for 20 paintings = $2.49 * 20 = $49.80

Shipping cost for 16 paintings = $2.49 * 16 = $39.84

The difference in shipping charges for 20 paintings and 16 paintings is:

$49.80 - $39.84 = $9.96

Therefore, Nina charges $9.96 more for shipping 20 paintings than for shipping 16 paintings. The correct option is (b) $9.96.

Answer:

Ok say your social life is on that scale, Now the moment you walk into school your life is A which means it hasn't made it anywhere..now as you progress your love life goes up and becomes a B soon you grow popular and hit C as your results sky rocket..suddenly something you do affects that maybe a bad grade or something you did to someone then your social life drops dramatically to a D and soon crumbling to an E.

~ Zachary Mark brainliest if you want Thanks <3 Have a nice day!!!

Answer:

The depth of water in a stream bed over time

Step-by-step explanation:

Answer:

Below

Step-by-step explanation:

The equation for slopes are y=mx+b. m = slope, and b = y-intercept.

Since b is negative the y-intercept will be below the x-axis.

Answer:

see below

Step-by-step explanation:

h(x) = 2x-10

Let x=3

h(3) = 2*3 -10

      = 6-10

      =4

Let x=-3

h(-3) = 2*-3 -10

      = -6-10

      =-16

Answer:

Q=3

Step-by-step explanation:

There is a range of 5+7=12 points. This means if we are dividing it into thirds each point (R, P, Q, S) will have a distance of 4 between them and the points on either side.

So, since P is 4 larger than R, then P=-5+4=-1, and Q=-1+4=3.

Answer:

the correct answer is above

Step-by-step explanation:

mark me as brainliest

Using the functions f(x) and g(x) as F(x)=x²-16; g(x)=x+4, (f/g)(x) = (x^2 - 16)/(x + 4) when x = -4. So, the correct answer is option D.

To find (f/g)(x), we need to divide f(x) by g(x). The notation (f/g)(x) is another way of representing the function f(x)/g(x).

So, we first need to find f(x)/g(x) by dividing f(x) by g(x):

f(x)/g(x) = (x^2 - 16)/(x + 4)

Now, we can plug in the values of x in each option and see which one gives us the correct function.

Option A: (f/g)(-4) = ((-4)^2 - 16)/(-4 + 4) = undefined

Option B: (f/g)(4) = (4^2 - 16)/(4 + 4) = -1

Option C: (f/g)(4 - 4) = (0^2 - 16)/(4 - 4) = undefined

Option D: (f/g)(-4 - 4) = ((-4)^2 - 16)/(-4 - 4) = 0

Therefore, the correct answer is option D: (f/g)(x) = (x^2 - 16)/(x + 4) when x = -4.

Note that options A and C give undefined values because they have x + 4 in the denominator, which makes the function undefined at x = -4 and x = 4, respectively.

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