Which is correct about how air typically moves? (1 point) O Air moves from high-pressure areas to low-pressure areas. O High-pressure air moves on top of low-pressure air. O High-pressure air and low-pressure air move alongside each other O Air moves from low-pressure areas to high-pressure areas.​

Answer:

5 times 6 is 30 and 30 times 7 is 210

so 210 is your anser hop that helps

Answer:

210

Step-by-step explanation: First way: 5x6=30x7=210

2nd way/distributive property: 5(6x7) 5(6=30x7=210.

Answer:

QS=2.4

Step-by-step explanation:

First graph it out. Once you do that you can see that QR is the same as RS. So you can do the equation 5x-4=2x+2. Once you solve this out you would get 2.4. (I'm just an advanced 7th grader so you can redo the problem to make sure it's all good. :D)

Answer:

68

Step-by-step explanation:

;0

Answer:

See below for explanation

Step-by-step explanation:

The area of an isosceles triangle is \(A=\frac{1}{2}bh\), so let's write the base as an equation of y:

\(\displaystyle 9x^2+4y^2=36\\\\4y^2=36-9x^2\\\\y^2=9-\frac{9}{4}x^2\\\\y=\pm\sqrt{9-\frac{9}{4}x^2\)

As you can see, our ellipse consists of two parts, so the hypotenuse of each cross-section will be \(\displaystyle 2\sqrt{9-\frac{9}{4}x^2\), and each height will be \(\displaystyle \sqrt{9-\frac{9}{4}x^2}\).

Hence, the area function for our cross-sections are:

\(\displaystyle A(x)=\frac{1}{2}bh=\frac{1}{2}\cdot2\sqrt{9-\frac{9}{4}x^2}\cdot\sqrt{9-\frac{9}{4}x^2}=9-\frac{9}{4}x^2\)

Since we'll be integrating with respect to x because the cross-sections are perpendicular to the x-axis, then our bounds will be from -2 to 2 to find the volume:

\(\displaystyle V=\int^2_{-2}\biggr(9-\frac{9}{4}x^2\biggr)\,dx\\\\V=9x-\frac{3}{4}x^3\biggr|^2_{-2}\\\\V=\biggr(9(2)-\frac{3}{4}(2)^3\biggr)-\biggr(9(-2)-\frac{3}{4}(-2)^3\biggr)\\\\V=\biggr(18-\frac{3}{4}(8)\biggr)-\biggr(-18-\frac{3}{4}(-8)\biggr)\\\\V=(18-6)-(-18+6)\\\\V=12-(-12)\\\\V=12+12\\\\V=24\)

Therefore, this explanation confirms that the correct volume is 24!

After 300 trials, the experimental probabilities may not align perfectly with the theoretical probabilities. However, with more trials, the experimental probabilities tend to converge towards the theoretical probabilities for closer alignment.

To examine whether experimental probabilities after 300 trials align closely with theoretical probabilities, let's consider an example of flipping a fair coin.

Theoretical probability: When flipping a fair coin, the theoretical probability of obtaining heads or tails is 0.5 each. This assumes that the coin is unbiased and has an equal chance of landing on either side.

Experimental probability: After conducting 300 trials of flipping the coin, we record the outcomes and calculate the experimental probabilities. Let's assume that heads occurred 160 times and tails occurred 140 times.

Experimental probability of heads: 160/300 = 0.5333

Experimental probability of tails: 140/300 = 0.4667

Comparing the experimental probabilities to the theoretical probabilities, we can observe that the experimental probability of heads is slightly higher than the theoretical probability, while the experimental probability of tails is slightly lower.

In this particular example, the experimental probabilities after 300 trials do not align perfectly with the theoretical probabilities. However, it is important to note that these differences can be attributed to sampling variability, as the experimental outcomes are subject to random fluctuations.

To draw a more definitive conclusion about the alignment between experimental and theoretical probabilities, a larger number of trials would need to be conducted. As the number of trials increases, the experimental probabilities tend to converge towards the theoretical probabilities, providing a closer alignment between the two.

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The question probable may be:

Do experimental probabilities after 300 trials tend to align closely with theoretical probabilities? Consider an example scenario and calculate both the theoretical and experimental probabilities to determine if they are close.

Answer:

\(Probability = \frac{27}{80}\)

Step-by-step explanation:

Given

\(Blue =9\)

\(Yellow = 7\)

Required

Determine the probability that one of the balls is blue while others is yellow

The order of selection may be any of these three:

Yellow, Yellow, Blue or Yellow, Blue, Yellow or Blue, Yellow, Yellow

Solving Yellow, Yellow, Blue

\(Probability = P(Y_1) * P(Y_2) * P(B)\)

\(Probability = \frac{7}{16} * \frac{6}{15} * \frac{9}{14}\)

\(Probability = \frac{1}{8} * \frac{1}{5} * \frac{9}{2}\)

\(Probability = \frac{9}{80}\)

Solving Yellow, Blue, Yellow

\(Probability = P(Y_1) * P(B) * P(Y_2)\)

\(Probability = \frac{7}{16} * \frac{9}{15} * \frac{6}{14}\)

\(Probability = \frac{9}{80}\)

Solving Blue, Yellow, Yellow

\(Probability = P(B) *P(Y_1) * P(Y_2)\)

\(Probability = \frac{9}{16} * \frac{7}{15} * \frac{6}{14}\)

\(Probability = \frac{9}{80}\)

Hence:

The required probability is:

\(Probability = \frac{9}{80} + \frac{9}{80} + \frac{9}{80}\)

\(Probability = \frac{27}{80}\)

Answer:

The margin of error for this estimate is of 14.79 yards per game.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

T interval

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 20 - 1 = 19

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 19 degrees of freedom(y-axis) and a confidence level of \(1 - \frac{1 - 0.95}{2} = 0.975\). So we have T = 2.093

The margin of error is:

\(M = T\frac{s}{\sqrt{n}}\)

In which s is the standard deviation of the sample and n is the size of the sample.

You randomly select 20 games and see that the average yards per game is 273.7 with a standard deviation of 31.64 yards.

This means that \(n = 20, s = 31.61\)

What is the margin of error for this estimate?

\(M = T\frac{s}{\sqrt{n}}\)

\(M = 2.093\frac{31.61}{\sqrt{20}}\)

\(M = 14.79\)

The margin of error for this estimate is of 14.79 yards per game.

Answer:

Who knows?

Step-by-step explanation:

7x = 3x - 15

4x = -15

x = -15/4

If you start at (0,-4) and you move left 1 unit and right 4 units, you end at (3, -4)

From the question, we have the following parameters that can be used in our computation:

Start = (0, -4)

Also, we have

You move left 1 unit and right 4 units

Mathematically, this can be expressed as

(x, y) = (x - 1 + 4, y)

Substitute the known values in the above equation, so, we have the following representation

Endpoint = (0 - 1 + 4, -4)

Evaluate the expression

Endpoint = (3, -4)

Hence, the endpoint is (3, -4)

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Answer:

See below ~

Step-by-step explanation:

Question 6(e) :

⇒ x² ≤ 16

Take square root on each side :

⇒ √x² ≤ √16

⇒ x ≤ 4 and x ≥ -4

⇒ -4 ≤ x ≤ 4

⇒ x² ≤ 16

Apply the absolute rule if x² < a then -√a < x < √a

⇒ -√16 ≤ x ≤ +√16

⇒ -4 ≤ x ≤ 4

First of all, The student should have subtracted both sides by 4

What he should have done:

\(\rightarrow \sf \dfrac{3}{x-2} > 4\)

\(\rightarrow \sf \dfrac{3}{x-2} -4 > 4 -4\)

\(\rightarrow \sf \dfrac{3}{x-2} -\dfrac{4(x-2)}{x-2} > 0\)

\(\rightarrow \sf \dfrac{3-4(x-2)}{x-2}} > 0\)

\(\rightarrow \sf \dfrac{3-4x+8}{x-2}} > 0\)

\(\rightarrow \sf \dfrac{-4x+11}{x-2}} > 0\)

\(\sf \large \boxed{\sf {\left \{ {{-4x+11 = 0} \atop {x-2 = 0}} \right. }}\)

⇒ -4x + 11 = 0, x - 2 = 0

⇒ -4x = -11, x = 2

⇒ x = 11/4 , x = 2

Solution satisfying the inequality:

⇒ 2 < x < 11/4

The number of cards she will sale to break even is 7 cards. Therefore, with sales and expenditure of 84 dollars she will break even.

Jessica is making greeting cards which will be sell by the box at an art fair. She paid 42 dollars for booth at the fair, and the materials for each box of cards cost 6 dollars. She will sell the card for 12 dollars per box of cards. At some point, she will sell enough cards so that her sales cover her expenditures.

Therefore, the number of cards she will take and the amount of sales and expenditures will be can be calculated as follows:

let

x = number of box

cost = 42 + 6x

sales = 12x

Therefore, let's find the number of card she will sale to cover her expenditures.

12x = 42 + 6x

12x - 6x = 42

6x = 42

x = 42 / 6

x = 7

sales = 12(7) = 84 dollars

Therefore, If Jessica sells 7 boxes of cards of cards, she will break even, with sales and expenditures of dollars.

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Answer:

rational algebraic expression

Answer:

C

Step-by-step explanation:

Answer:A 16-ounce can of mixed nuts includes 6 ounces of cashews and 10 ounces of almonds. What is the ratio of almonds to mixed nuts in this can of nuts?

Step-by-step explanation:

Answer:

705.8823529411765

Step-by-step explanation:

You find out what percent the Mini Cooper is a subtract that from the full 100%. You would then have 17%. Now you need to divide the 120 inches by 17 to find out what 1% equals. In this case 7.058823529411765, now you multiply by 100 to get the full 100%. The answer is 705.8823529411765

Answer:

\(f\times e=\{(1,44),(1,8),(1,2),(2,44),(2,8),(2,2),(13,44),(13,8),(13,2)\}\)

Step-by-step explanation:

The Cartesian Product of two sets is all pairs in which the first element of each pair comes from the first set, and the second element comes from the second set.

\(f\times e=\{(1,44),(1,8),(1,2),(2,44),(2,8),(2,2),(13,44),(13,8),(13,2)\}\)

This was built using 1 from the first set paired with each number in the second set, then using 2 from the first set paired with each number in the second set, then 13 from the first set paired with each number in the second set.

Bad English!  Good solution!

The Interpretatiom of the equation is that;

w represents number of weeks she will have saved for the remaining items

$25 represents the amount she saves per week

$65 represents the amount she has already saved

The algebra word problem can be solved by using variables to denote certain parameters I'm the question.

The general form of equation of a line in slope intercept form is;

y = mx + c

Where;

m is slope

c is y-intercept

We are given the equation:

$25w + $65

This equation represents the amount of money Kelly will have saved after some amount of weeks.

Thus;

w represents number of weeks she will have saved for the remaining items

$25 represents the amount she saves per week

$65 represents the amount she has already saved

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Answer:

13) -6, -2, 0, 2

14) -9, -8, 4, 9

15) -14, -6, 0, 9, 10

16) -11, -9, -8, 3, 12

17) 9, 5, -3, -11

18) 2, -3, -4, -17

19) 14, 9, 0, -10, -16

20) 24, 11, -8, -11, -20

The number line 5 ≤ 8-3x  shows the solution to the inequality as x cannot be more than 1.

A inequality compares two values and indicates whether one is smaller, larger, or simply not equal to the other.

a  ≠ b is the information that a and b are not equal.

If a  > b, a is greater than b. (these two are defined as strict inequality)

a ≤ b proves that a is less than or equal to b

a ≥ b proves that a is greater than or equal to b

The number line 5 ≤ 8-3x  shows the solution to the inequality as x cannot be more than 1.

If x is more than 1, lets say 2

Then the inequality as follows

5 ≤ 8-3(2) ≤ 14

5 ≤ 8-6 ≤ 14

5 ≤ 2 ≤ 14  this statement becomes false

Therefore x, must be lower than 1

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Final Answer: The inverse of f (x)=7x-4 is f^-1 (x)= (x+4)/7

Answer:

\(21.7 x 10^5\)

Step-by-step explanation:

(6.2 x 10²) x (3.5 x 10³)

First, multiply the coefficients: 6.2 x 3.5 = 21.7.

Then, add the exponents: 10² x 10³ = 10^(2+3) = 10^5.

Therefore, the result is 21.7 x 10^5.

Answer:

3286000

Step-by-step explanation:

The company will start to turn a profit when x is greater than -22. In other words, the company will start to turn a profit when they sell more than 22 units of their product.

What is function?

In mathematics, a function is a relationship between two sets of elements, called the domain and the range, such that each element in the domain is associated with a unique element in the range.

To find the point at which the company starts to turn a profit, we need to find the value of x for which the revenue is greater than the cost of production.

The revenue function is R(x) = 7x, and the cost of production is C(x) = 13x + 132.

So, we need to solve the inequality:

R(x) > C(x)

7x > 13x + 132

Subtracting 13x from both sides, we get:

-6x > 132

Dividing both sides by -6 (and flipping the inequality because we're dividing by a negative number), we get:

x < -22

Therefore, the company will start to turn a profit when x is greater than -22. In other words, the company will start to turn a profit when they sell more than 22 units of their product.

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Answer:

1/2

Step-by-step explanation:

In a deck of cards, there are 13 hearts and 13 diamonds

13+13 = 26 hearts or diamonds

P( hearts or diamonds) = numbers of hearts or diamonds / total

                                       =26/52

                                       = 1/2

The number of 100 dollar bills in one billion dollars  is 10 million hundreds or 70,900 hundred dollar bills.

To find the number of 100 dollar bills in one billion dollars, we can use the following steps:

First, we need to find the value of one billion dollars in terms of hundreds. Since each hundred dollar bill has a value of $100,

we can divide one billion by 100 to get the number of hundreds

\(:$$\frac{1\text{ billion}}{100}=10\text{ million}$$\)

So one billion dollars is equal to 10 million hundreds.

Now we need to find the volume of one hundred dollar bill. To do this, we multiply its length, width, and thickness:\($$6.14 \text{ in} \times 2.61 \text{ in} \times 0.00043 \text{ in}=0.00709 \text{ in}^3$$\)

The volume of one hundred dollar bill is approximately 0.00709 cubic inches.

Finally, we need to find the total volume of 10 million hundreds:\($$0.00709 \text{ in}^3 \times 10,000,000=70,900 \text{ in}^3$$\)

Therefore, the total volume of 10 million hundred dollar bills is approximately 70,900 cubic inches.10 million hundreds or 70,900 hundred dollar bills.

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Answer:

5,610 Miles

Step-by-step explanation:

To solve this you would need to multiply the average miles by how many tanks of gas she will use.

374 * 15 = 5,610

So, Eleanor can drive 5,610 miles with 15 tanks of gas.

Answer:

4

Step-by-step explanation:

1) If a homeowner had no homeowners insurance and experienced a loss or damage to their property.

2) If a renter had no renters insurance and faced a loss or damage to their personal belongings due to events like theft, fire, or other covered perils.

3) Mortgage companies require homeowners insurance because they have a financial stake in the property being mortgaged.

4) An automobile owner can benefit from purchasing auto insurance in several ways.

Here, we have,

If a homeowner had no homeowners insurance and experienced a loss or damage to their property, they would be solely responsible for covering the costs of repairing or replacing their home and belongings. This can be a significant financial burden, especially in the case of major events such as fire, theft, or natural disasters. Homeowners insurance provides financial protection and helps homeowners recover from such events by providing coverage for property damage, theft, liability, and additional living expenses.

If a renter had no renters insurance and faced a loss or damage to their personal belongings due to events like theft, fire, or other covered perils, they would have to bear the entire cost of replacing their belongings. Renters insurance provides coverage for personal property against various risks and also offers liability protection. Without renters insurance, renters would be financially responsible for replacing their belongings out of pocket, which can be costly and disruptive.

Mortgage companies require homeowners insurance because they have a financial stake in the property being mortgaged. The home serves as collateral for the loan, and the mortgage company wants to protect its investment. Requiring homeowners insurance ensures that if the property is damaged or destroyed, the insurance will help cover the costs of repairs or rebuilding. This requirement mitigates the risk for the mortgage company and provides them with assurance that the property is protected.

An automobile owner can benefit from purchasing auto insurance in several ways. Firstly, auto insurance provides financial protection in case of accidents, damage to the vehicle, or injuries to oneself or others. It covers the costs of repairs or replacement of the vehicle and medical expenses resulting from accidents. Additionally, auto insurance can provide liability coverage in case the insured driver causes damage to someone else's property or injuries to other individuals. Having auto insurance can give peace of mind, protect against unexpected expenses, and help ensure compliance with legal requirements.

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Answer:

A

Step-by-step explanation:

Answer:

A. 23.66 cm

Step-by-step explanation:

The monthly income of the first person is $600.

Given that, the average monthly income of three persons is RS 3,600.

The income of the first is 1/5 of the combined income of the other two.

Here, Let income of the first be A, let income of the second be B and let Income of the third be C.

A+B+C=3600 -----(i)

Income for the first person = 1/5(B+C) -----(ii)

Substitute equation (ii) in equation (i), we get

(B+C)/5 +B+C =3600

B+C+5B+5C=3600×5

6B+6C=18000

6(B+C)=18000

B+C=3000 ------(iii)

Substitute (iii) in equation (i), we get

A=$600

Therefore, the monthly income of the first person is $600.

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The sum of the probabilities is always equal to 1. Summing up the probabilities given on the data set, we have

Given the probability distribution table, the mean number per inning can be computed as

For the computation of the standard deviation, we need to solve first for the square of the difference of the number of innings on the mean. We have the following

We then multiply these values on the corresponding probability of each inning given in the probability distribution table. We have

We now get the sum of the values computed above and get the square of it.

Answer:

0.25 g/mL

Step-by-step explanation:

d=m/v

6 g / 24 mL

0.25 g/mL

both (g) and mL were only used once so the answer includes both of them