help please this due very soon thank you!!!!

Answer:

8 ''A''-students out of 40 is bigger

Step-by-step explanation:

8 "A"-students out of 40:

\(\frac{8}{40}\) = \(\frac{1}{5}\) = 20%

9 "A"-students out of 50:

\(\frac{9}{50}\) = 18%

20% > 15%

8 ''A''-students out of 40 is bigger

The percentage of 8 ''A'' students out of 40 is more than 9 ''A''-students out of 50.

Given that, to determine which percent is bigger: 8 ''A''-students out of 40 or 9 ''A''-students out of 50.

The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

Here,
According to the question,
8 ''A''-students out of 40 = 8 / 40 × 100%
                                         = 20%

9 ''A''-students out of 50 = 9 / 50 × 100%
                                         = 18%

Thus, the percentage of 8 ''A'' students out of 40 is more than 9 ''A''-students out of 50.

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Answer:

4 times the difference of x and 2 is 4(x-2)

Answer:

$11.30

Explanation : 11.3= 1.10(8)+2.5

The required ultimate tensile strength for 4130 steel quenched and tempered at 400F is 138,000 psi with a reliability of 90 percentage.

The ultimate tensile strength of 4130 steel quenched and tempered at 400F can be calculated using the data given in Appendix Table A-9. First, we need to calculate the standard deviation of the ultimate tensile strength of 4130 steel which is 16,000 psi. Then, we need to calculate the margin of error at a reliability of 90 percentage. This is done by multiplying the standard deviation by 1.645, which gives us a margin of error of 26,120 psi. Finally, we need to add the margin of error to the mean value of ultimate tensile strength, which is 112,000 psi. This gives us a required ultimate tensile strength of 138,120 psi with a reliability of 90%.

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Answer: 20 nickels to make $2.00

Step-by-step explanation:

Answer:

5x = 200

x=40

Step-by-step explanation:

There will be 16 business cards in total. Each of the 4 people exchanges cards with the other 3 people.

When Person A exchanges business cards with Person B, it results in 2 cards on the table. The same happens when Person A exchanges cards with Person C and Person D, resulting in a total of 6 cards. This process is repeated for Person B, Person C, and Person D, leading to a total of 6 cards exchanged by each person individually. Since there are 4 people, we multiply 6 by 4, resulting in 24 cards exchanged. However, we need to divide this number by 2 because each card is counted twice (once for each person exchanging). Thus, we have a total of 12 unique cards on the table. Adding the initial 4 cards placed by the individuals themselves gives us a final count of 16 business cards.

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Answer:

exactly 8 hours to travel 3400 miles

To hide the last two rows in a table view in Swift and set their row heights to 0, you can modify the table view's delegate method `heightForRowAt` for the respective rows.

In Swift, you can achieve this by implementing the UITableViewDelegate protocol's method `heightForRowAt`. Inside this method, you can check if the indexPath corresponds to the last two rows (in this case, rows 9 and 10). If it does, you can return a row height of 0 to hide them from the view. Here's an example of how you can write this logic:

```swift

func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {

   let numberOfRows = tableView.numberOfRows(inSection: indexPath.section)

   if indexPath.row == numberOfRows - 2 || indexPath.row == numberOfRows - 1 {

       return 0

   }

   return UITableView.automaticDimension

}

```

In the above code, `tableView(_:heightForRowAt:)` is the delegate method that returns the height of each row. We use the `numberOfRows(inSection:)` method to get the total number of rows in the table view's section. If the current `indexPath.row` is equal to `numberOfRows - 2` or `numberOfRows - 1`, we return a height of 0 to hide those rows. Otherwise, we return `UITableView.automaticDimension` to maintain the default row height for other rows.

By implementing this logic in the `heightForRowAt` method, the last two rows in the table view will be effectively hidden from the view by setting their row heights to 0.

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Answer:

hablas español?? Si o no ?

Answer:

yellow

Step-by-step explanation:

im not sure what its asking so im guessing what the point is

The corrected statement should look like this:
```java
int[] hours = {8, 12, 16};
```

It looks like you are trying to create an integer array in Java called "hours" and initialize it with the values 8, 12, and 16. The given statement has incorrect syntax.
Declare the integer array using "int[]" followed by the variable name "hours".

This tells the Java compiler that you want to create an array of integers called "hours".
Use the assignment operator "=" to assign values to the array.
Enclose the values you want to assign to the array within curly braces "{" and "}" and separate each value with a comma.
The corrected statement should look like this:
```java
int[] hours = {8, 12, 16};
```
Now, the "hours" integer array is initialized correctly with the given values.

The syntax for declaring and initializing an integer array in Java is:

```java
data Type[] array

Name = {value1, value2, value3, ...};
```
In this case, "data Type" is "int", "array

Name" is "hours", and the values are 8, 12, and 16.
Remember to keep your code clean and concise to avoid syntax errors and make it easier for others to understand.

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Answer:

1, 3, 9, 27, 81, . . .

Step-by-step explanation:

Got it right on edg

Answer:

a.) y= 75x+25

b.) y= 25x+225

c.) Their account balances will be the same in 4 months and they'll have $325.

Step-by-step explanation:

For A and B: The variable is x which is the amount of months then add the initial amounts without a variable and equal it to y which is the amount in all.

For Rowan, they are saving $75 per month. This is where our variable goes and then we add the intial $25 dollars. The equation is y= 75x+25.

For Reem, they are saving $25 per month. This is where our variable goes and then we add the intial $225 dollars. The equation is y= 25x+225

C. You have to set the equations equal to each other and then solve for x.

75x+25 = 25x+225

Subtract 25 from each side

75x=25x+200

Subtract 25x from each side

50x=200

Divide each side by 50

X=4

For the amount they'll have, just plug 4 into one of the equations.

Rowan : y=75(4)+25

y=325

Reem: y=25(4)+225

y=325

The value of n in the equation n/5 + 0.6 = 2 is 7.

It should be noted that an equation simply has to do with the statement that illustrates the variables given. In this case, it is vital to note that two or more components are considered in order to be able to describe the scenario.

It is important to note that an equation is the mathematical statement which can be made up of two expressions which are connected by an equal sign.

In this case, n/5 + 0.6 = 2

0.2n + 0.6 = 2

Collect the like terms

0.2n = 2 - 0.6

0.2n = 1.4

Divide

n = 1.4 / 0.2

n = 7

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Complete question

Solve for n

n/5 + 0.6 = 2

Answer:

3x-70

Step-by-step explanation:

(3y+40 ) 120x is the answer of that question answer

The statement that proves that polygon ABCD is not a rectangle is: C. Slope of AD × slope of AB ≠ -1 and slope of BC × slope of AB ≠ -1.

A rectangle is a quadrilateral that has four right angles, this means that two sides of the rectangle intersect each other perpendicularly to form right angles.

Thus, the slope of each pair of sides that intersect perpendicularly equals -1.

Therefore, for polygon ABCD to be a rectangle, we must prove that each pair of intersecting sides that meet have a a slopes that gives -1 when multiplied together. If the product of their slopes is not equal to -1, then the polygon is not a rectangle.

Conclusively, the statement that proves that polygon ABCD is not a rectangle is: C. Slope of AD × slope of AB ≠ -1 and slope of BC × slope of AB ≠ -1.

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The compensating variation is $13.52.

The compensating variation is the amount of money that Greg would need to be compensated for a price increase in order to maintain his original level of utility. In this case, Greg's utility function is u = x^0.38x^0.962. His income is $83.00, and he faces these prices: (P1, P2) = (4.00, 1.00). If the price of x increases by $1.00, then the new prices are (P1, P2) = (5.00, 1.00).

To calculate the compensating variation, we can use the following formula:

CV = u(x1, x2) - u(x1', x2')

where u(x1, x2) is Greg's original level of utility, u(x1', x2') is Greg's new level of utility after the price increase, and CV is the compensating variation.

We can find u(x1, x2) using the following steps:

Set x1 = 83 / 4 = 20.75.

Set x2 = 83 - 20.75 = 62.25.

Substitute x1 and x2 into the utility function to get u(x1, x2) = 22.13.

We can find u(x1', x2') using the following steps:

Set x1' = 83 / 5 = 16.60.

Set x2' = 83 - 16.60 = 66.40.

Substitute x1' and x2' into the utility function to get u(x1', x2') = 21.62.

Therefore, the compensating variation is CV = 22.13 - 21.62 = $1.51.

To two decimal places, the compensating variation is $13.52.

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Answer:

y=2x-4

Step-by-step explanation:

Step-by-step explanation:

CD = AB

the inner angle at C = 25° = the outer angle at A.

so, the inner angle at A = 90 - 25 = 65°

now we use the law of sine

a/sin(A) = b/sin(B) = c/sin(C)

with a, b, c being the triangle sides, and A, B, C the angles opposite of the correlated sides.

so, in our case

555/sin(65) = AB/sin(25) = CD/sin(25)

CD = 555×sin(25)/sin(65) = 258.8007503...

≈ 258.8 m

We establish the given binomial expression (x + y)^4 in the following way

The nth power of the sum of two integers a and b may be represented as the sum of n + 1 terms of the form, according to the binomial theorem, which states that for every positive integer n.

A polynomial with just terms is a binomial. An illustration of a binomial is x + 2, where x and 2 are two distinct words. Additionally, in this case, x has a coefficient of 1, an exponent of 1, and a constant of 2. As a result, a binomial is a two-term algebraic statement that comprises a constant, exponents, a variable, and a coefficient.

(x+y) 4=

((x+y)2) 2=

(x2+2xy+y2) 2=

(x2+2xy) 2+2(x2+2xy) (y2)+(y2) 2=

(x4+4x3y+4x2y2)+(2x2y2+4xy3)+(y4)=

x4+4x3y+6x2y2+4xy3+y4

The binomal theorem is a more comprehensive strategy:

(x+y)

n=∑k=0n(nk)

⋅xn−k⋅yk=∑k=0n(nk)

⋅xk⋅yn−k\sWhere\s(nk)=n!((n−k)!)⋅(k!)

n!={1n⋅((n−1)!)

n=0n>0

∑k=0nf(k)=f(0)+f(1)+f(2)+…+f(n)

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Total number of seats that remain unsold are 168.

What is statistics?

The branch of mathematics dealing with data collection, organization, analysis, interpretation and presentation.

Let's start by defining some variables to represent the unknowns in the problem:

From the problem, we know that:

We also know that the total revenue collected is $34,650:

27x + 45y = 34650

Now we can substitute y = 0.5x from the second equation into the third equation and simplify:

27x + 45(0.5x) = 34650

27x + 22.5x = 34650

49.5x = 34650

x = 700

So there were 700 $30-seats and 350 $50-seats.

The number of sold $30-seats is 0.9(30x) = 567, and the number of sold $50-seats is 0.9(50y) = 315.

Therefore, the total number of seats sold is 882, and the number of unsold seats is:

1050 - 882 = 168

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The length of BC rounded to 3 significant figures is approximately 3.62 units.

We can use trigonometric function to find the length of BC. First, we can use the fact that ∠CAB = 90° to determine that ∠ACB = 25° (since the angles in a triangle sum to 180°).

Next, we can use the law of sines to relate the lengths of the sides and angles of the triangle:

sin(∠ABC) / AB = sin(∠ACB) / BC

Substituting in the values we know:

sin(65°) / 8.6 = sin(25°) / BC

Solving for BC:

BC = sin(25°) × 8.6 / sin(65°) ≈ 3.62

Rounding to 3 significant figures, we get BC ≈ 3.62 units

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Explanation:

Concept:

The zero of a function is any replacement for the variable that will produce an answer of zero. Graphically, the real zero of a function is where the graph of the function crosses the x‐axis; that is, the real zero of a function is the x‐intercept(s) of the graph of the function.

Hence,

From the graph below,

We can see that the graph cuts the x-axis at two points

Therefore,

The zeroes of the graph are

Answer: 0.81

Step-by-step explanation: Think about all the way to the 100.

Answer:

It will take 2 snacks for Benjamin and Landon to spend the same amount

Step-by-step explanation:

Assume they bought x snacks

∵ Benjamin spends $9.50 for a movie ticket at Emagine and $4.50

  for each snack

∵ He bought x snacks

→ Multiply the number of snacks by 4.50 and add it to 9.50

∴ The amount he spent = 4.50x + 9.50

∵ Landon spends $8 for a movie ticket at AMC and $5.25 for each snack

∵ He bought x snacks

→ Multiply the number of snacks by 5.25 and add it to 8

∴ The amount he spent = 5.25x + 8

∵ They spent the same amount of money

→ Equate the right sides of their amount spent

∴ 5.25x + 8 = 4.50x + 9.50

→ Subtract 4.50x from both sides

∵ 5.25x - 4.50x + 8 = 4.50x - 4.50x + 9.50

∴ 0.75x + 8 = 9.50

→ Subtract 8 from both sides

∵ 0.75x + 8 - 8 = 9.50 - 8

∴ 0.75x = 1.50

→ Divide both sides by 0.75

∴ x = 2

∵ x represents the number of snacks they bought

∴ It will take 2 snacks for Benjamin and Landon to spend the same amount

Answer:

Below

Step-by-step explanation:

Radians =  degrees * pi /180

Radians * 180/pi   =  degrees

The probability that a poisonous mushroom in the forest is red is 50%.

To find the probability that a poisonous mushroom in the forest is red, we need to consider the probabilities of a mushroom being red and poisonous, and compare it to the overall probability of a mushroom being poisonous.

Let's denote the events as follows:

R: Mushroom is red

P: Mushroom is poisonous

P(R) = 20% = 0.20 (probability of a mushroom being red)

P(P|R) = 20% = 0.20 (probability of a red mushroom being poisonous)

P(P|not R) = 5% = 0.05 (probability of a non-red mushroom being poisonous)

We want to calculate:

P(R|P) = ? (probability that a poisonous mushroom is red)

We can use Bayes' theorem to calculate this probability:

P(R|P) = (P(P|R) * P(R)) / P(P)

To calculate P(P), the overall probability of a mushroom being poisonous, we can use the law of total probability:

P(P) = P(P|R) * P(R) + P(P|not R) * P(not R)

P(not R) = 1 - P(R) = 1 - 0.20 = 0.80 (probability of a mushroom not being red)

Now, we can calculate P(P):

P(P) = P(P|R) * P(R) + P(P|not R) * P(not R)

      = 0.20 * 0.20 + 0.05 * 0.80

      = 0.04 + 0.04

      = 0.08

Finally, we can calculate P(R|P) using Bayes' theorem:

P(R|P) = (P(P|R) * P(R)) / P(P)

      = (0.20 * 0.20) / 0.08

      = 0.04 / 0.08

      = 0.50

Therefore, the probability that a poisonous mushroom in the forest is red is 50%.

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Answer: $7.65 for a dozen/12

Step-by-step explanation: 2.55 x 3