9n-22=4n + 3
And please explain how you got your answer, I’ve gotten this far (look at image) but I don’t know what to do now

Answer:

x = 0.76

Step-by-step explanation:

plugged it into calculator

Answer: 6, but it isn't in your answer choices

Step-by-step explanation: When dividing exponents with the same base, subtract the bottom exponent from the top. In this case, you get 3 from subtracting n from 9, so n should be 6

The solution of the given system of equations is as follows:

x = x y = y z = -4/3x - 10/9y + 68/27

w = -1/147

Let's solve the given system of equations:

4x + 12y - 7z - 20w = 263x + 9y - 5z - 28w = 36

Divide the first equation by 4 and the second equation by 3 we have:

x + 3y - 7/4z - 5/2w = 26/43x + 3y - 5/3z - 28/3w = 12

Now, multiply the first equation by 3 and subtract from the second equation:

3(1x + 3y - 7/4z - 5/2w = 26/4)3x + 3y - 21/4z - 15/2w = 39/4- (3x + 3y - 5/3z - 28/3w = 12)1/3z + 11/3w = 7/4

Now, solve for z:

z = 21w - 28/3By substituting the value of z in terms of w in the first equation we get:

1x + 3y - 7/4(21w - 28/3) - 5/2w = 26/4x + 3y - 147/4w + 7 = 13/2

Multiply both sides by 2, and we get:2x + 6y - 147/2w + 14 = 13

Therefore,2x + 6y - 147/2w = -1/2

Now, solving for w:{147}/{2w}= {-1}/{2}

w = -1/147

By substituting the value of w in the equation x + 3y - 7/4z - 5/2w = 26/4, we get:

1x + 3y - 7/4z - 5/2(-1/147) = 26/4x + 3y - 7/4z + 5/294 = 13/12

Multiplying both sides by 12, we get:12x + 36y - 21z + 5 = 39

Now, solve for z:

z = -{4}/{3}x - {10}/{9}y + {68}/{27}

Hence, the solution of the given system of equations is as follows:x = x y = y z = -4/3x - 10/9y + 68/27w = -1/147

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Answer:

Step-by-step explanation:

There are a lot of ifs in this problem. The generator has to be a fair one. Any one of the 11 numbers must be equally likely to happen. Second, the sequence must not be the same each time she turns it on. Assuming both are true, then the numbers she will get are

9 10 11  for one number

9 10 11 for the other number

P(x>8) = 3/11 * 3/11 = 9/121

Answer:

"A solution to 8 = -x + 10 is 2" is the only correct option.

Answer:

x = 11.1

Step-by-step explanation:

3.75x - 1.5 = 40

3.75x = 40 + 1.5

3.75x = 41.5

x = 41.5/3.75

x = 11.07

Rounded to nearest tenth: 11.1

Answer:

11.1

Step-by-step explanation:

3.75x - 1.5 = 40

+1.5 +1.5

3.75x/3.75 = 41.5/3.75

1x=11.1

x= 11.1

The set which represents the range of the function g(x) = 14 -2x if the domain is x = { 2,4,9} is; y = {10, 6, -4)

The set which represents the range of the function for the given domain can be gotten as follows;

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The integral is  9/4 ln|x| - 1/2 ln|x-2| - 7/4 ln|x+2| + C

How to find integral?

First factor the denominator:

x^3 - 4x = x(x^2 - 4) = x(x-2)(x+2)

Now write the integrand as a sum of two fractions:

(x^2 + 36x - 36) / (x^3 - 4x) = A/x + B/(x-2) + C/(x+2)

To find A, we multiply both sides of the equation by x and then take the limit as x approaches 0:

(x^2 + 36x - 36) / (x^2 - 4x) = A + B/(x-2) + C/(x+2)

(x^2 + 36x - 36) = A(x^2 - 4x) + B(x+2) + C(x-2)

-36 = -4A + 2B - 2C

To find B and C, we multiply both sides of the original equation by (x-2) and (x+2), respectively, and then substitute x=2 and x=-2:

(x^2 + 36x - 36) = A(x(x-2)(x+2)) + B(x-2)(x+2) + C(x(x-2)(x+2))

(x^2 + 36x - 36) = A(x^3 - 4x) + B(x^2 - 4) + C(x^3 - 4x)

Let x = 2: 52 = 8A + 4B + 2C

Let x = -2: -100 = -8A + 4B - 2C

Solving the system of equations gives:

A = 9/4, B = -1/2, C = -7/4

Therefore, the integral becomes:

∫ (x^2 + 36x - 36) / (x^3 - 4x) dx = ∫ (9/4)/x dx + ∫ (-1/2)/(x-2) dx + ∫ (-7/4)/(x+2) dx

= 9/4 ln|x| - 1/2 ln|x-2| - 7/4 ln|x+2| + C

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Answer:

\(4+(\frac{x}{3})\geq x\)

Step-by-step explanation:

First, find keywords in the sentence:

Four more than the quotient of a number and 3 is at least that number.

four more than= 4+

quotient= the result of dividing one quantity by another(in this case its \(\frac{x}{3}\))

a number= x

at least= \(\geq\)

Now, form the inequality:

4+

\(4+(\frac{x}{3})\)

\(4+(\frac{x}{3})\geq\)

\(4+(\frac{x}{3})\geq x\)

Hope this helps!! <3

A viable method of numeration that contained zero and allowed for the solution of equations was developed by Muslim academics, who also used logic to establish mathematical ideas and relationships.

The current arithmetic decimal system and the basic operations associated with it—addition, subtraction, multiplication, division, raising to a power, and extracting the square root and cubic root—were created by Muslim mathematicians.

The Indian numeral system, which is now known as Arabic numerals, was swiftly adopted by Islamic mathematicians. The development of algebra, the use of decimals, mathematical induction, and trigonometry were among the further contributions.

The Arabic translation of mathematical, medicinal, and astronomical writings from their original languages is one of the Islamic world's greatest contributions to contemporary science.

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The composite function that can be used to calculate the final price of Jonah's car is f[c(p)] = 0. 9265p.

A composite function is a function that is in another function, such that on solving the composite function the result is the same as the function solve individually.

We know that the sale price of Jonah's car is c(p) = 0. 85p, where p is the original price of the car. Also, the tax on the car is 9% of the sale price, and the final price of the car is f(c) = 1. 09c, including tax, therefore, the composite function can be written as,

\(f(c) = 1.09 c\)

We already know the value of c, therefore,

\(f(c(p)) = 1.09 (0.85p)\\\\f(c(p)) = 10.9265(p)\)

Hence, the composite function that can be used to calculate the final price of Jonah's car is f[c(p)] = 0. 9265p.

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The Great Depression and the memories of the catastrophic losses in World War I combined in the 1930s to push American public opinion and policy in the direction of isolationism. Isolationists favored staying out of international affairs and staying out of conflicts in Europe and Asia.

The devastation and expense of World War One had left their imprint on America, and the majority of people there just wanted to be left alone to focus on fostering prosperity in their country rather than be involved in any further politics in Europe.

Because they did not want the US to be drawn into another conflict the way they (perceived) it had been into World War I, many Americans in the 1930s backed an isolationist stance.

Because when he first became office, he felt at ease reaching out to the globe in a variety of ways. However, after realizing that his neighbors did not get along, he decided it would not be best for the US to become involved.

Therefore,

The Great Depression and the memories of the catastrophic losses in World War I combined in the 1930s to push American public opinion and policy in the direction of isolationism. Isolationists favored staying out of international affairs and staying out of conflicts in Europe and Asia.

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the correct answers are shown in my screenshot. #happycheating <333

The expression equivalent to the 5ⁿ/2ⁿ will be (5/2)ⁿ , (2/5)⁻ⁿ ,  (2.5)ⁿ , 2⁻ⁿ/5⁻ⁿ.Options A, B, D, and F are correct.

An equation is a statement that two expressions, which include variables and/or numbers, are equal. In essence, equations are questions, and efforts to systematically find solutions to these questions have been the driving forces behind the creation of mathematics.

It is given that, the expression is, 5ⁿ/2ⁿ

The expression can be written in different ways as,

5/2)ⁿ

(2/5)⁻ⁿ

(2.5)ⁿ

2⁻ⁿ/5⁻ⁿ

Thus, the expression equivalent to the 5ⁿ/2ⁿ will be (5/2)ⁿ , (2/5)⁻ⁿ ,  (2.5)ⁿ, 2⁻ⁿ/5⁻ⁿ. Options A, B, D, and F are correct.

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a. The proportion of genetic abnormalities in recent years is greater than the proportion believed in the 1990s (p > 0.30). b. The number of successes (136) and the number of failures 265 should be at least 10. In this case, both criteria are satisfied. c. The z is 2.048. d. If the p-value is larger than the significance level, it would suggest that there is not enough evidence to reject the null hypothesis and conclude that the proportion has not significantly changed.

a. The hypotheses to test if the proportion of genetic abnormalities has increased in recent years can be stated as follows:

Null hypothesis (H₀): The proportion of genetic abnormalities in recent years is equal to or less than the proportion believed in the 1990s (p ≤ 0.30).

Alternative hypothesis (Ha): The proportion of genetic abnormalities in recent years is greater than the proportion believed in the 1990s (p > 0.30).

b. To conduct the hypothesis test, we need to verify if the conditions for performing the test are met. The conditions are as follows:

Random Sample: The study states that the 401 children were randomly selected, so this condition is met.

Independence: The sample should consist of independent observations. If the children were selected randomly and their genetic abnormalities are unrelated to each other, then the independence condition is likely satisfied.

Large Sample Size: For hypothesis tests involving proportions, it is recommended to have a large enough sample size to ensure the sampling distribution is approximately normal. There is no specific threshold, but as a guideline, both the number of successes (136) and the number of failures (401 - 136 = 265) should be at least 10. In this case, both criteria are satisfied.

c. To find the p-value, we need to perform a hypothesis test based on the given data. Since the sample size is large, we can use the normal approximation for the binomial distribution. We calculate the test statistic, which is the z-score for proportions, and then find the p-value.

The formula for the z-score for proportions is:

z = (\(\hat p\) - p₀) / √((p₀ * (1 - p₀)) / n)

where \(\hat p\) is the sample proportion, p₀ is the proportion under the null hypothesis, and n is the sample size.

In this case, \(\hat p\) (sample proportion) = 136 / 401 = 0.339, p₀ (proportion under the null hypothesis) = 0.30, and n (sample size) = 401.

Calculating the z-score:

z = (0.339 - 0.30) / √((0.30 * (1 - 0.30)) / 401)

z = 2.048

To find the p-value associated with this z-score, we look up the area to the right of the z-score in the standard normal distribution table or use statistical software.

d. The p-value represents the probability of observing a test statistic as extreme as the one calculated (or more extreme) assuming the null hypothesis is true. In this case, since we are testing if the proportion of genetic abnormalities has increased, the p-value is the probability of observing a sample proportion as large as or larger than 0.339, given that the true proportion is equal to or less than 0.30.

Without the actual p-value, it is not possible to provide a specific interpretation. However, if the p-value is smaller than the significance level (commonly chosen as 0.05), it would indicate that there is strong evidence to reject the null hypothesis and conclude that the proportion of genetic abnormalities has increased in recent years.

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Answer: 59 degrees

Step-by-step explanation:

90-31=59

The shape of a data flow diagramming process is a  open box.

Given nothing and we have to tell the shape of a data flow diagramming process.

A data flow diagram expresses  the flow of information for any process or system. It uses symbols like rectangles, circles and arrows to show data inputs, outputs, storage points and the routes between each destination.

In this diagram the information is presented in rectangles and circles which are then joined through arrows.

It can present a process of coordination between departments.

Because there is no shape in which these rectangles , circles and arrows are present. That's why we have said that it is a open box.

Hence the shape of a data flow diagramming process is a open box.

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answer : the answer is one

Answer:

PWE BWISIT KAAAAAAA HINDI SANA MASARAP ULAM MO! PANIRA KA

Answer: Mesocyclone

Step-by-step explanation:

Answer:

\(a_{n}\) = 6n + 1

Step-by-step explanation:

This is an arithmetic sequence with nth term

\(a_{n}\) = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 13 - 6 = 7 and d = 6 , then

\(a_{n}\) = 7 + 6(n - 1) = 7 + 6n - 6 = 6n + 1

Answer:

the first few terms would be

7, 13, 19, 25, 31

nth term = 7 + 6(n+1)

nth term = 7+ 6n + 6

nth term = 6n + 13

The probability of an event and the probability of its complement always sum to 1.

The probability of an event and its complement refers to the likelihood of either the event occurring or its opposite (not occurring). In any probability space, the sum of these two probabilities must always equal 1.

This can be understood using the concept of the sample space, which represents all possible outcomes of an experiment. The event and its complement together cover the entire sample space, leaving no room for other outcomes. Therefore, the sum of their probabilities must account for the entire probability space, which is equal to 1.

In other words, if the probability of an event occurring is P(A), then the probability of its complement (not A) occurring is 1 - P(A). Adding these probabilities together yields 1:

P(A) + P(not A) = P(A) + (1 - P(A)) = 1

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The sample chosen for the study is the 10 students out of 20 students on your floor. The number of times they order pizza in a week is the variable of interest.

The population is the 20 students on your floor. The number of times all 20 students order pizza in a week is the parameter of interest.

The difference between a sample and a population is that a sample is a subset of the population. A parameter is a numerical summary of a population, while a statistic is a numerical summary of a sample.

In this case, the sample is a subset of the population because only 10 students out of 20 are being surveyed. The parameter of interest is the number of times all 20 students order pizza in a week, which is not known. The statistic of interest is the number of times the 10 students in the sample order pizza in a week, which is known.

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Answer: Since 2005 the amount of money spent on restaurants in a certain country has increased at a rate of 4% each year. In 2005, about 670 billion was spent on restaurants.

To find the amount spent on restaurants in 2013, we can use the formula:

A = P(1 + r)^t

Where:

A = the final amount

P = the initial amount (670 billion)

r = the rate of increase (0.04 or 4%)

t = the number of years since the initial amount (8 years)

Plugging in the values, we get:

A = 670 billion (1 + 0.04)^8

A = 670 billion (1.04)^8

A = 670 billion * 1.4304

A = 951.8 billion

So, if the trend continues, about 951.8 billion will be spent on restaurants in 2013.

Step-by-step explanation:

Answer:

N - 8 = 22

Step-by-step explanation:

The variable N goes first. If you look at the question over again, it says the difference between a number and 8 is 22. The number uses the variable N if your trying to figure out what it is, so your gonna subtract your number from 8 to get 22

Answer:

\(n - 8 = 22 \\ here \: number \: = n \\ thank \: you\)

Answer:

4_5=_1 then -1 is <25 25_1 25<-1

Answer:

C

Step-by-step explanation:

1/18 x³y + 7/18 xy²

1/18 xy (x² + 7y)

Step-by-step explanation:

The cube is 2 x 2 x 2  inches

 so the cone has a height of 2 inches and a radius of 1 inch

volume of cone = 1/3 pi r^2 h

                           = 1/3 pi (1^2)(2) = 2/3 pi in^3   or  = 2.09 in^3