I need help with this​

Answer:

12% of 2500 is 300

Step-by-step explanation:

\(\frac{12}{100} = \frac{300}{y}\)

12 × y = 100 × 300

12y = 30000

12y ÷ 12 = 30000 ÷ 12

y = 2500

Here is a formula for most fraction problems.

The sample size in systematic sampling, the population size is divided by the sample size. The result is the sampling interval, which is used to pick the items that will make up the sample.

The sampling method is systematic sampling. In a study, the sample is chosen by testing every 100th quart of ice cream off the assembly line for taste and consistency.

Sampling method: Systematic Sampling: It is a sampling method in which every nth item in the target population is selected to be part of the sample, where n is a fixed number called the sampling interval. Systematic sampling is a type of non-probability sampling in which an organization selects every nth item from a sampling frame or list, with the aim of acquiring a representative sample of the population concerned.

The formula used for systematic sampling is k = N/n.

Where k is the sampling interval,

N is the population size, and

n is the sample size.

To find the sample size in systematic sampling, the population size is divided by the sample size. The result is the sampling interval, which is used to pick the items that will make up the sample.

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Answer:

Estimate Tip =  $4.50

Step-by-step explanation:

The bill to the nearest $10  is $30.00 :  ( $ 30 ($32.43) $40, it is nearer to $30

Estimate Tip = Bill rounded to the nearest $10  ×  Tip %

Estimate Tip = $30 × 15%

Estimate Tip = $30 × .15                  (15% change to a decimal is .15)

Estimate Tip = $4.50

Hello! Allow me to help!

Your question: An engineer of Volkswagen America spent three and a half hours on a Greyhound bus to experience the vast distances Americans travel in their automobiles and to try to understand why Americans treat their automobiles as rolling extensions of their living rooms. What kind of data did the engineer collect

Your answer: He collected data about people driving their automobiles, and why they seem to use them like a moving living room.

Why is my answer correct? Good question! Allow me to explain: Deprived from the text. "to experience the vast distances Americans travel in their automobiles and to try to understand why Americans treat their automobiles as rolling extensions of their living rooms." proves this to be accurate.

Hope this helps! UwU

-Maxwell

The money in the account at the end of the 4 years is $1034

What is compound interest?

Compound interest, also known as interest on principal and interest, is the practice of adding interest to the principal amount of a loan or deposit.

Now we are given that the initial amount deposited in the account is $1000

This account is giving 0.85% And we have to figure out how much amount will be there

We use compound interest formula to find the amount

\(A= P(1+r/n)^{nt}\\\\A= 1000(1+0.0085)^{4}\\A = 1000(1.034)\\A= 1034\)

Hence the amount will be after 4 years is $1034.

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Step-by-step explanation:

The formula for the lateral area of a right cone is :

LA = rs

Where

r is the radius of the base and s is the slant height of the cone

Equivalent expression,

\(r=\dfrac{LA}{s}\)

or

\(s=\dfrac{LA}{r}\)

Hence, this is the required solution.

Answer:

The answers are C & E

Answer:

No.

Step-by-step explanation:

A circle is defined as a figure in which all points are equidistant from the center, or C.  In order to determine how far points A and B are from the center, we must first find the difference in positioning from (2,5) to each point and then use Pythagorean Theorem to calculate the length of the hypotenuse.  Point A establishes that the radius of the circle must be 10 units, and Point Bis only about 8 units away.

Answer:

B) \(\displaystyle \frac{1}{16}\)

Step-by-step explanation:

\(\displaystyle \frac{1}{16} = \frac{\frac{1}{8}}{2} \\ \\ OR \\ \\ \frac{1}{8} \div 2 = \frac{1}{8} \times \frac{1}{2} = \frac{1}{16}\)

I am joyous to assist you at any time.

The answer is given as follows : The simplified expression for g(z+5) is -5z - 25. To find g(z+5), we substitute (z+5) into the function rule g(z) = -5z.

g(z+5) = -5(z+5). Now, we can simplify the expression by distributing the -5 to both terms inside the parentheses: g(z+5) = -5z - 5(5). Simplifying further: g(z+5) = -5z - 25. Therefore, the simplified expression for g(z+5) is -5z - 25.

In the given function rule g(x+3), there seems to be a typo or a missing part of the equation. If you provide the correct function rule for g(x+3), I can help you further with its simplification.

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Answer:

G because y+y+y is the exact same as 3 y

Answer:

Step-by-step explanation:

sorry I apologize

Answer:

300,621

Step-by-step explanation:

Answer:

1. D.

20+30+8+10+20=88

D. 12

Because... 88+12=100%

2. A. 12

3. D. 11

Step-by-step explanation:

Hope that Helped!!!

Answer:

2 A is not correct

Step-by-step explanation:

Answer

328,268.2 mm cubed is correct!

Step-by-step explanation:

If you use the formula V=πr²h with these steps:

1. Calculate the area of the base (which is a circle)

2. use the equation πr² where r is the radius of the circle.

3. Then, multiply the area of the base by the height of the cylinder

4. The volume is found!

Answer:

328,268.2 cubic millimeters

Step-by-step explanation:

I did it on edge

Independent and dependent variables are interdependent.

Dependent Variable: The term "dependent variable" refers to the variable that is being measured or tested in an experiment.

The results of the participants' tests, for instance, would be the dependent variable in a study looking at how tutoring affects test scores because that is what is being measured.

If you keep in mind that the dependent variable depends on the independent variable, finding it can be simpler.

This isn't the same as an experiment's independent variable, which is a variable that can stand on its own. The dependent variable (test results), however, may alter depending on the independent variable (tutoring).

The unrelated factor

Because the experimenters are allowed to change the independent variable as necessary, it is called a "independent" variable.

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In a case whereby Laila needs a new bike mirror. Her old mirror was a square with a side length of 7 cm the circular bike mirror Laila should buy is 4 cm.

Given that the side length = 7 cm

Then we can know the Old mirror's area  using the formula

Area =  (S X S)

Where S is the side

=( 7 x 7 )

= 49cm2

Then from the information from the question, we can equate the area of the old and the new as

(Area of old mirror = Area of new mirror)

where  Area of new mirror = πr^2

(49 = πr^2)

49 = (22/7 * r^2)

r^2 = 49 *7/22

r= 3.948 cm

r = 4cm

If we approximate it , hence option A is correct.

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The mathematical model that best fits the given data is option : y = 82.3 - 8.275x.

To construct a scatterplot and determine the mathematical model that best fits the given data, we will plot the points and analyze the trend.

Given Data:

x: 4, 8, 12, 16, 20

y: 40, 20, -11, -37, -97

Let's plot these points on a scatterplot:

(x, y) points:

(4, 40)

(8, 20)

(12, -11)

(16, -37)

(20, -97)

After plotting the points, we can analyze the trend in the data.

By observing the scatterplot, it is clear that a linear or quadratic model would not fit the data well since the points do not follow a straight line or a parabolic curve.

Next, we can try the logarithmic, exponential, and power models to see if any of them fit the data better.

Using a calculator or computer to perform the regression analysis, we find that the regression equation with the highest R² value is:

y = 82.3 - 8.275x

This equation corresponds to option : y = 82.3 - 8.275x

The regression equation represents a linear model that best fits the given data. The R² value indicates how well the model explains the variability in the data, and in this case, the linear model provides the highest R² value compared to the other models.

It's important to note that the specific values of the coefficients in the regression equation may vary slightly depending on the calculator or software used for the analysis. However, the overall best-fit model remains the same.

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Answer:

I would say B

Step-by-step explanation:

On May 1, the owner deposited $50,000 of their own money into the business' bank account.

This transaction represents a capital contribution by the owner, increasing the company's cash balance. The owner is infusing personal funds into the business, which can be used for various purposes such as operational expenses, investment, or expansion. This injection of capital strengthens the financial position of the business and provides additional resources for its operations and growth.

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Refer to the attachment for solution.

Answer:

48 days

Step-by-step explanation:

Swim = every 6 days

Run = every 4 days

Cycles = every 16 days

Find the lowest common multiple of 6, 4 and 16

6 = 6, 12, 18, 24, 30, 36, 42, and 48

4 = 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48

16 = 16, 16, 32, 48, 64, 80, 96, 112, 128, 144, 160

The LCM of 6, 4 and 16 is 48

Therefore,

If she did all 3 activities today, she will do all 3 activities again in the next 48 days

Answer:

1.6

Step-by-step explanation:

As the sample size gets larger, the z value increases therefore we will more likely to  less likely to fail to reject the null hypothesis, thus the power of the test increases.

Statistical tests provide a mechanism for making quantitative decisions about one or more processes. The intent is to determine whether there is sufficient evidence to "reject" speculations or hypotheses about the process. If you want to keep pretending that you "believe" the null hypothesis is true, then not rejecting it can do you good. Alternatively, it may indicate that there is not yet enough data to "prove" something by rejecting the null hypothesis. A classic application of statistical testing is process control studies. Suppose a manufacturing process is interested in  a photomask with an average linewidth of 500 microns. The null hypothesis in this case is that the average linewidth is 500 microns. This statement implies the need to characterize photomasks with average linewidths much larger or  smaller than 500 microns. This leads to the alternative hypothesis that the average linewidth is not equal to 500 microns. This is a two-way substitution as it protects against substitution in the opposite direction. In other words, the line width is either too small or too large.

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Using a moving average of order p = 3, a forecast for time period 6 is 46.

The moving average is a mathematical method for calculating a series of averages using various subsets of the full dataset. It is also known as a rolling average or a running average. The moving average smoothes the underlying data and lowers the noise level, allowing us to visualize the underlying patterns and patterns more readily. In other words, a moving average is a mathematical calculation that employs the average of a subset of data at various time intervals to determine trends, eliminate noise, and better forecast future outcomes. Answer: 46.

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Answer:

786.6

Step-by-step explanation:

Anything to the ^0 is 1 so its 1 x 6.6 + 100 x 7.8

6.6 + 780

786.6

Answer:

786.6

Step-by-step explanation:

Problem:

(6.6 × 10⁰) + (7.8 × 10²)​

Step 1 - Parenthesis:

(6.6 × 10⁰) + (7.8 × 10²)​

Step 2 - Exponents(Left to Right):

(6.6 × 10^0) + (7.8 × 10^2)​ = (6.6 × 1) + (7.8 × 100)

Step 3 - Multiply(Left to Right):

(6.6 × 1) + (7.8 × 100) = 6.6 + 780

Step 4 - Add(Left to Right)

6.6 + 780 = 786.6

Step 5 - Answer:

786.6

Parenthesis

Exponents(Left to Right)

Multiplication(Left to Right)

Division(Left to Right)

Addition(Left to Right)

Subtraction(Left to Right)