Seven more than three times a number is 58. What is the number? a. 15 b. 16 c. 17 d. 18​

Answer:

300 ml

Step-by-step explanation:

sum the parts of the ratio, 3 + 5 = 8 parts

divide the amount of salad dressing made by 8 to find the value of one part of the ratio.

800 ml ÷ 8 = 100 ml , then

yogurt used = 3 × 100 ml = 300 ml

The required Sasha and her friends bought 25 ounces of yogurt for 45 cents per ounce.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

here,
Sasha and her friends bought frozen yogurt for 45 cents per ounce. Their total was $11.25.

Divide the total amount by per unit cost of ounces as 45 cents per ounce to get the total number of ounces bought.
= 11.25/0.45
= 25

Thus, the required Sasha and her friends bought 25 ounces of yogurt for 45 cents per ounce.

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Answer:

Step-by-step explanation:

Change a=2b to y=2x.

a/y = # of shirts Wanda has
b/x = # of shirts Will has.

Will has double the amount Wanda has each time.

Answer:

  6

Step-by-step explanation:

You want the x-coordinate of the midpoint of segment AB with endpoint coordinates A(21, 5) and B(-9, -13).

The midpoint of a line segment has coordinates that are the average of the endpoint coordinates:

  M = (A +B)/2

  M = ((21, 5) +(-9, -13))/2 = (12, -8)/2

  M = (6, -4)

The midpoint of AB is (6, -4).

The x-coordinate of the midpoint is 6.

Answer:

30

Step-by-step explanation:

9514 1404 393

Answer:

  D.  3.70 and 3.75

Step-by-step explanation:

Your calculator tells you that √14 ≈ 3.742.

The upper ends of the ranges of choices A, B, and C are all below this value, so the only interval that is applicable is choice D:

  √14 lies between 3.70 and 3.75

The average velocity of a particle moving along the x-axis from time t = 0 to t = 8 is given by the integral of its velocity function v(t) divided by the time interval, which is 8 - 0 = 8. Therefore, the average velocity is ∫v(t) dt / 8.

To find the average velocity of the particle, we need to calculate the integral of the velocity function v(t) over the time interval from t = 0 to t = 8, and then divide it by the time interval. The integral of v(t) represents the displacement of the particle over that time interval.

The average velocity is given by the formula: average velocity = ∫v(t) dt / (8 - 0) = ∫v(t) dt / 8.

In this case, the options provided are:

a(0) Jo "() dt,

8 ∫|v(t)| dt,

2 ∫v(t) dt,

v(0) + v(8).

Out of these options, the correct expression for the average velocity is 2 ∫v(t) dt. This expression represents the integral of the velocity function v(t) over the time interval, divided by the time interval of 8. It accounts for the change in velocity of the particle over time and provides an average value of its velocity during the interval.

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Answer:

positive

Step-by-step explanation:

Answer:

It means it is usually positive

Step-by-step explanation:

The positive sign is invisible if it is at the beginning of an equation number, if it is moved to the other side of the equal sign, than it turns the opposite charge. Hope this answers your question :)

Answer:

1st one

Step-by-step explanation:

Answer:

-5/2

Step-by-step explanation:

4-2x-4=5

-2x=5+4-4

-2x=5

x=-5/2/-2 1/2/ -2.5

Answer:  x = -5/2

Step by step explanation:

4 - 2x - 4 = 5

 -2x = 5

    x = -5/2

    x = -5/2

Using system of equations, the cost of one video game is $25.5; the cost of one DVD is $13.

Given the problem above, we would do the following:

Using the information given, we would form two equations for the system as shown below:

2v + 3d = 90 ---> equation 1

v + 2d = 51.5 ---> equation 2

Multiply equation 2 by 2 to get equation 3

2v + 4d = 103 ---> equation 3

Subtract equation 1 from equation 3

d = 13

The cost of one DVD = d = $13.00

Substitute d = 13 into equation 2

v + 2d = 51.5 ---> equation 2

v + 2(13) = 51.5

v + 26 = 51.5

v = 51.5 - 26

v = 25.5

The cost of one video game = v = $25.50.

Therefore, using system of equations, the cost of one video game is $25.5; the cost of one DVD is $13.

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The vector field F(x, y, z) = eyzi + xzeyzj + xyeyzk is conservative, and a potential function f is f(x, y, z) = xeyzi + xy²ezj + xyzek + C

How to determine vector field?

To determine if a vector field is conservative, we need to check if its curl is zero. If the curl is zero, it implies that the vector field can be expressed as the gradient of a scalar function.

Taking the curl of F, we have:

curl(F) = (∂F₃/∂y - ∂F₂/∂z)i + (∂F₁/∂z - ∂F₃/∂x)j + (∂F₂/∂x - ∂F₁/∂y)k

Evaluating the partial derivatives, we get:

curl(F) = (z - z) i + (x - x) j + (y - y) k

= 0

Since the curl of F is zero, the vector field F is conservative. We can find a potential function f by integrating each component of F with respect to its respective variable:

f(x, y, z) = ∫eyzi dx = xeyzi + g₁(y, z)

∫xzeyzj dy = xy²ezj + g₂(x, z)

∫xyeyzk dz = xyzek + g₃(x, y)

Here, g₁, g₂, and g₃ are arbitrary functions of the remaining variables. Combining these results, we obtain the potential function:

f(x, y, z) = xeyzi + xy²ezj + xyzek + C

Where C is the constant of integration. Therefore, a potential function f exists for the given vector field F, and it is given by f(x, y, z) = xeyzi + xy²ezj + xyzek + C.

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Answer:

\(\frac{2x^2-4x-12}{x^2+3x}\)

Step-by-step explanation:

=> \(\frac{2x}{x+3} - \frac{4}{x}\)

LCM = x(x-3)

=> \(\frac{2x^2-4(x+3)}{x(x+3)}\)

=> \(\frac{2x^2-4x-12}{x^2+3x}\)

This is the required simplest form and can't be simplified further.

Hope this Helps!

Don't hesitate asking any question regarding this.

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:

B, C, and E

Step-by-step explanation:

6(x+4)+35

B) 6x+ 6(4)+ 35 (They just distributed the 6 to the x but left the 4 undistributed)

C) 35+6(x+4) (If addition or subtraction, moving the numbers won't change the sum/difference)

E) 6(4+x)+35 (If addition or subtraction, moving the numbers won't change the sum/difference)

Answer:

I Honestly Dont Know Sorry haahahhahaha Go F ur self

Step-by-step explanation:

No, the presence of an effect does not necessarily imply that error variance will go away.

The presence of an effect does not necessarily imply that error variance will go away. In fact, error variance is an inherent part of any statistical model and represents the amount of variation in the response variable that is not explained by the predictor variables.

Even if a predictor variable has a significant effect on the response variable, there may still be some unexplained variation in the response that is attributable to error variance.

It is important to take into account and control for error variance in any statistical analysis, as it can affect the precision and accuracy of the estimates of the model parameters and can also influence the interpretation of the results.

One way to control for error variance is to use appropriate statistical methods, such as analysis of variance (ANOVA), regression analysis, or other modeling techniques that take into account the variability in the data.

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Answer:

(2, -2)

Step-by-step explanation:

Put 2 in for x and -2 in for y. Also I got it correct on Edge.

The required solution to the system of equation is  (2, -2). Option c is correct.

The system of the equation is given \(y =x/2- 3\),
and by the data in the table,
x = -1   0   2  3
y =  1   0  -2   -3
The solution to the equation is to be determined.

The equation is the relationship between variables and is represented as an example y = ax +c, of a polynomial equation.

\(y =x/2- 3\)   - - - - (1)
Equation from the table
y = -x  - - - - - (2)

put y in equation 1
-x = x/2 - 3
-3x/2 = -3
x = 2
put x in equation 2
y = -2
solution of the system of equation is (2, -2)

Thus, the required solution to the system of equation is  (2, -2). Option c is correct.

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Answer:

Step-by-step explanation:

Radius = circumference / 2π

= 43.96 / 2π

= 7.00 yards to the nearest hundredth.

Answer:

I love algebra anyways  

the ans is in the picture with the steps  

(hope it helps can i plz have brainlist :D hehe)

Step-by-step explanation:

The ratio of junior to adult = 6/5

What is proportion?

An equality between two ratios. According to proportion, if 2 sets of given numbers area unit increasing or decreasing within the same quantitative relation, then the ratios area unit aforesaid to be directly proportional to every different.

Main body:

Given - data in the question

To find answer the question

Solution - Let no of junior, children and adults be x, y, z respectively.

Now, ratio of junior to children = 1/3

So, x = 3y

Ratio of children to adult = 5/2

So, 5y = 2z

.(2)

So, from (1) we get, y = x / 3

So, 5x / 3 = 2z

⇒5x = 6z

⇒ x/z=6/5

Hence, the ratio of junior to adult = 6/5

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Answer:

6x² - 12x - 18

the factors are -18 and 6

6x² - 18x + 6x - 18

6x(x - 3) + 6 (x - 3)

(6x + 6) or (x - 3)

the factors are:

(6x + 6) or (x - 3)

Answer:

(-5, 1)

Step-by-step explanation:

Eliminate the equal sides of each equation and combine.

\( - x - 4 = \frac{3}{5} x + 4\)

Solve − x −4 =35x + 4 for x.

\(x = - 5\)

Evaluate y when x = −5.

\(y = 1\)

hence, the system of this equation is (-5, 1).

- Square matrices are the only matrices that can be invertible.
- If a square matrix has a right inverse, it will also have a left inverse.
- Non-square matrices can have either a right inverse or a left inverse, but not both.

In linear algebra, square matrices are the only matrices that can be invertible. A matrix is invertible if there exists another matrix, called its inverse, such that their product is the identity matrix. This means that if A is a square matrix, there exists another matrix B such that AB = BA = I, where I is the identity matrix.

If a square matrix has a right inverse, it will also have a left inverse. This means that if A is a square matrix and there exists another matrix B such that AB = I, then BA = I as well. In other words, the right inverse and left inverse of A will be the same matrix.

On the other hand, non-square matrices can only have either a right inverse or a left inverse, but not both. This is due to the size mismatch between the matrices when multiplying them in different orders. If a non-square matrix has a right inverse, it means that there exists another matrix B such that AB = I. However, this matrix B cannot be a left inverse of A, because the product BA would result in a size mismatch.

Therefore, square matrices are the only matrices that can be invertible. If a square matrix has a right inverse, it will also have a left inverse. However, non-square matrices can only have either a right inverse or a left inverse, but not both.

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The probability of renting exactly three apartments in a week is approximately 0.2018 or 20.18%.

If the average number of units rented per week is 2.3 and the distribution is Poisson, then the parameter lambda is also equal to 2.3.

The probability of renting exactly three apartments in a week is given by the Poisson probability function:

\(P(X = 3) = (e^(-lambda) * lambda^x) / x!\)

Substituting the values, we get:

\(P(X = 3) = (e^(-2.3) * 2.3^3) / 3!\)

P(X = 3) = (0.09963 * 12.167) / 6

P(X = 3) = 0.2018

Therefore, the probability of renting exactly three apartments in a week is approximately 0.2018 or 20.18%.

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Answer:

a

Step-by-step explanation:

22.978 rounded is 23

Based on the given statement, the correct answer would be:

option A. The statement makes sense. Sally listens to music when she is depressed. If she is listening to music, then Sally must be depressed.

The given statement is discussing a potential relationship between Sally's emotional state of being depressed and her behavior of listening to music. The question asks whether the statement makes sense, is clearly true, or does not make sense, and provides four options to choose from.

Option A states that the statement makes sense and suggests that if Sally is listening to music, then she must be depressed. This option is reasonable because the statement establishes a connection between Sally's depression and her behavior of listening to music. It implies that listening to music is a coping mechanism or an activity she engages in when she experiences depressive feelings.

Therefore, if someone observes Sally listening to music, it can be inferred that she might be in a depressed state at that moment.

On the other hand, options B and C can be eliminated because they make extreme and unsupported claims. Option B suggests that Sally only listens to music when she is depressed, which is not explicitly stated in the given statement. Option C states that if Sally is listening to music, then she must not be depressed, which contradicts the initial connection established between depression and listening to music in the statement.

Option D highlights the incomplete nature of the statement but does not render it entirely senseless. It acknowledges that the statement mentions Sally's behavior of listening to music when she is depressed but does not provide information about other potential reasons she might listen to music.

In summary, option A is the most appropriate choice as it aligns with the established correlation between Sally's depression and her listening to music, while considering the possibility of other reasons for her music listening behavior.

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Answer:-2.3,11.,11.,-0.25 or  x2 - 10x - 25- -5

Step-by-step explanation:

u just go in a TI-nspire CX calculator and type in in how it looks

Answer:

1/8

Step-by-step explanation:

The question is incomplete, here is the complete question

Michael split 3/4

pounds of candy among 8 people.

What is the unit rate in pounds per person?

Write your answer in simplest form

SOLUTION:

Micheal splits 3/4 candy among 8 people

Therefore the unit rate per pounds per person can be calculated as follows

= 3/4 ÷ 8

= 3/4 × 1/8

= 3/24

= 1/8

Hence the unit per pound per person is 1/8

The correct option which shown same horizontal asymptotes of given function is,

⇒ f (x) = (2x² - 1) / 2x²

We have to given that,

Function is,

⇒ f (x) = (x² + 5) / (x² - 2)

Now, We can see that,

In the given function degree of numerator and denominator are same.

Hence, The value of horizontal asymptotes are,

⇒ y = 1 / 1

⇒ y = 1

And, From all the given options.

Only Option first and third have degree of numerator and denominator.

Here, The value of horizontal asymptotes for option first are,

⇒ y = 2 / 2

⇒ y = 1

And, The value of horizontal asymptotes of third option are,

⇒ y = 3 / 1

⇒ y = 3

Thus, The correct option which shown same horizontal asymptotes of given function is,

⇒ f (x) = (2x² - 1) / 2x²

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Answer:

i think second number.

not sure but i think that's the answer