Need help !!!!!!!!!!!!!

Answer:

$3.25

Step-by-step explanation:

what you do is divide 39 into 12 and that gives you 3.25 which is the answer!

Answer:

14+14 + 4pi= 28 + 4pi

\(\pi\)

Answer:

1. x = 12

2. x = 4

3. x = 8

4. x = 6 or -6

5. No solution

Step-by-step explanation:

Answer:

x = 4.5

Step-by-step explanation:

Angle B = angle C because it is an isosceles triangle.

3x32 = 87-2x

96 = 87-2x

reduce:

9 = 2x

x = 4.5

An isosceles triangle is one with two equal-length sides. The value of x is 11.

An isosceles triangle is one with two equal-length sides. It is sometimes stated as having exactly two equal-length sides, and sometimes as having at least two equal-length sides, with the latter form containing the equilateral triangle as a particular case.

Since in an isosceles triangle, the angle made by the equal sides and the base are equal, therefore, we can write,

∠B = ∠C

3x + 32 = 87 - 2x

3x + 2x = 87 - 32

5x = 55

x = 11

Hence, the value of x is 11.

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Answer:

you $42 and your saving $18

Step-by-step explanation:

Answer:

$42 would be the cost of the shirt after the discount. The difference between the price of the shirt before the discount, and after is $18.

Step-by-step explanation:

If you divide 60 by 100, you would get the value for 1% of $60. If you multiply that number by the discount amount, you get the amount that is going to be subtracted from the cost when the discount is applied.

60 / 100 = 0.6

0.6 x 30 =  18      (This is the difference)

60 - 18 = 42        (This is the value after the discount)

Thus the value after the discount is $42, and he difference between the 2 values is $18.

A reflection preserves the size and shape of the prior original image, acting as a congruence transition.

A reflection in mathematics is a mapping from a Euclidean space to itself that is an isometry with a set of fixed points known as the hyperplane, also known as the axis or plane of reflection.

The mirror image of a figure in the axis or plane of reflection is the image produced by a reflection.

A reflection keeps the pre-original image's size and shape, making it a congruent transition.

A figure that has been flipped over a line of reflection is a reflection.

The position of the x- and y-coordinates simply changes in a reflection across the line y = x.

Consider the case when the point (6, 7) is reflected across the line y = x. The reflected point's coordinates are (7, 6).

Therefore, a reflection preserves the size and shape of the prior original image, acting as a congruence transition.

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To determine whether there is a local maximum, local minimum, or nothing at each point, we need to use the first derivative test.

If f'(x) changes sign from positive to negative at a point, then we have a local maximum at that point. If f'(x) changes sign from negative to positive at a point, then we have a local minimum at that point. If f'(x) does not change sign at a point, then we have nothing at that point.

Using this information and the given values of f'(a), we can determine the answers for each point:

- At x = 0, f'(x) = 2. Since f'(x) is positive but does not change sign, we have nothing at x = 0.

- At x = 5, f'(x) = 0. Since f'(x) is zero, we have nothing at x = 5.

- At x = 10, f'(x) = 5. Since f'(x) is positive but does not change sign, we have nothing at x = 10.

- At x = 15, f'(x) = -9.5. Since f'(x) is negative and changes sign from positive to negative, we have a local maximum at x = 15.

- At x = 20, f'(x) = 0. Since f'(x) is zero, we have nothing at x = 20.

Therefore, the answers are:

- At x = 0, there is nothing.
- At x = 5, there is nothing.
- At x = 10, there is nothing.
- At x = 15, there is a local maximum.
- At x = 20, there is nothing.

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Answer:it's c

Step-by-step explanation:

It's - -1/4

Answer:

-1/4

Step-by-step explanation:

just did it

The domain and the range of the function are (-∝, ∝) and (0, ∝), respectively

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

The graph

The above graph is an exponential function

The rule of an function is that

The domain is the set of all real values

In this case, the domain is (-∝, ∝)

For the range, we have

Range = (0, ∝)

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-13

Step-by-step explanation:

n=2×-2×2-5

n= -4×2-5

n= -8-5

n=-13

Answer:

pretty sure its A cuz of the 4 90° thing.

Answer:B      

Step-by-step explanation:

Answer:

f(x) = x + 3,   x < 0

        3,         x ≥ 0

Step-by-step explanation:

The is a piecewise function: the slanted line has a y-intercept of 3, a slope of 1, and is only shown when x < 0.

The horizontal line has a y-intercept of 3, a slope of 0, and is shown when x ≥ 0.

Answer:

Its B. "x" is all real numbers. Happens in any case that the line is horizontal. Hope this helps!

this is not a fair method, as we found at least two different probabilities.

We will say that this is a fair method if and only if the probability for each of the 7 friends is exactly the same.

So, each friend selects a number from 1 through 7 and then it repeats, so, this means that the person who selects the number 1 has the possible outcomes:

{1, 8, 15, 22, 29, 36, 43, 50}

While the person who gets the number 7, has the possible outcomes:

{7, 14, 21, 28, 35, 42, 49}

Now, notice that the person who got the number 1 has 8 outcomes in which he sits out.

While the person who got the number 7 has 7 outcomes in which he sits out.

So, the person with the number 1 has a larger probability of sitting out than the person with the number 7, thus, this is not a fair method, as we found at least two different probabilities.

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The question is incomplete. Here is the complete question.

A organizational psychologist measures levels of job satisfaction in a sample of 30 participants. To measure the variance of job satisfaction, it is calculated that the SS = 120 for this sample.

What are the degrees of freedom for the variance?

Compute the variance and standard deviation.

Answer: Degrees of freedom = 29

Variance = 4.138

Standard Deviation = 2.034

Step-by-step explanation: Degrees of freedom is a number of values in calculation of statistics that are free to vary, i.e., in how many ways a system can move independently. To determine it:

df = n - 1

which n is the quantity of the sample or population

For this sample: df = 30 - 1 = 29

The degrees of freedom is 29.

SS is the sum of the squared deviation, i.e., ∑(x - mean)².

Variance is calculated as:

variance = ∑(x - mean)² / n - 1 = SS / n - 1

variance = \(\frac{120}{29}\)

variance = 4.138

Standard deviation is the spread from the mean and is the square root of variance:

standard deviation = \(\sqrt{variance}\)

standard deviation = \(\sqrt{4.138}\)

standard deviation = 2.034

Answer:

60n seconds

Step-by-step explanation:

In 1 min, there are 60 seconds

So,

1 min = 60 secs

For n minutes, it becomes:

=> 60n seconds

The statement that proves that angle XWY is equal to angle ZYW is

A. If two parallels are cut by a transverse, then alternate interior angles are congruent

Alternate interior angles are a pair of angles that are formed on opposite sides of a transversal line when two parallel lines are intersected by the transversal.

When a transversal intersects two parallel lines, it creates eight angles. Among these angles, the alternate interior angles are located on the inside of the parallel lines and on opposite sides of the transversal.

In a parallelogram, the two opposite sides are parallel to each other hence the line crossing them will lead to formation of alternate interior angles

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Answer: -3

Step-by-step explanation: 3-3=0

Answer:

Step-by-step explanation:

bonsoir aider moi plus vite possible

3+?=0

3 + x = 0

x = -3

Answer:

Step-by-step explanation:

Answer:

23

Steps ig

((8x2) +2x(-3)))-(((-(-4)) x 2) +( 3 x( -7)) =23

If "p ^ q" conjunction (logical AND)  is true, it implies either both p and q condition are true or the truth value of p is unknown while q is true.

If the statement "p ^ q" is true, we can conclude the following about the truth values of p and q:

Both p and q are true: If both p and q are true, then the conjunction (logical AND) of p and q, denoted as "p ^ q," will also be true.

This is because for the conjunction to be true, both p and q must be true.

The truth value of p is unknown, and q is true: In some cases, the truth value of p may be unknown or unspecified, but if q is true, then the conjunction "p ^ q" will still be true.

This is because the truth value of p does not affect the outcome when q is true.

In summary, if "p ^ q" is true, it implies either both p and q are true or the truth value of p is unknown while q is true .

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To derive the analytical expressions for the optimal portfolio weights of the first and second assets, we need to maximize the expected utility function.

Let's assume the weights of the first and second assets are denoted by w1 and w2, respectively. Since there is no risk-free security available, the sum of weights must be equal to 1: w1 + w2 = 1.

To find the optimal portfolio weights, we need to maximize the expected utility function with respect to w1 and w2. This can be done using optimization techniques, such as Lagrange multipliers or calculus.

We can start by taking the derivative of the expected utility function with respect to w1 and set it equal to zero to find the critical points. Similarly, we take the derivative with respect to w2 and set it equal to zero.

Next, we solve these equations to find the values of w1 and w2 that satisfy the equations. These values will give us the optimal portfolio weights for the first and second assets.

Ihe analytical expressions for the optimal portfolio weights of the first and second assets can be derived by maximizing the expected utility function and solving the resulting equations.

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Answer:

;-;

There is no 30$ tokens

Step-by-step explanation:

i guess its A or b

like the heck

Answer:

n[$1]=4

n[$5]=2

n[$10]=2

n[$15]=1

n[total]=9

getting 10=2/9

Answer:

The answer is 5 3/4

Step-by-step explanation:

13/4 = 3 1/4

3 1/4 + 2 2/4 = 5 3/4

Hope this helped you!

Answer:0

Step-by-step explanation:

One point is at -18, and the other is at 18. However, when we add -18 and 18 together, the result is 0, because they cancel each other out.

Answer:

0

Step-by-step explanation:

Answer: Area of regular polygon =  

2

perimeter×apothem

​

Perimeter = number of sides × side length = 5×10 =50 cm

So, Area =  

2

50×10

​

Area = 250 cm

2

Step-by-step explanation:

After considering the given data we conclude that the answers to the sub questions are
a) the proportion of the population between 10 and 20 is approximately 0.0808.
b) the probability  Of randomly selecting the value that will be between 28 and 38 is approximately 0.4251.

a) To find the proportion of the population between 10 and 20, we need to calculate the z-scores for these values and use a standard normal distribution table or calculator to find the corresponding probabilities. The z-score for 10 is:
\(z = (10 - 34) / 10 = -2.4\)
The z-score for 20 is:
\(z = (20 - 34) / 10 = -1.4\)
Using a standard normal distribution table or calculator, we can find that the probability of a z-score between -2.4 and -1.4 is approximately 0.0808.
Therefore, the proportion of the population between 10 and 20 is approximately 0.0808.
b) To find the probability that a randomly chosen value will be between 28 and 38, we can use the same method as in part (a). The z-score for 28 is:
\(z = (28 - 34) / 10 = -0.6\)
The z-score for 38 is:
\(z = (38 - 34) / 10 = 0.4\)
Using a standard normal distribution table or calculator, we can find that the probability of a z-score between -0.6 and 0.4 is approximately 0.4251.
Therefore, the probability that a randomly chosen value will be between 28 and 38 is approximately 0.4251.
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The first term on the left-hand side represents the flux of the quantity D(pu δ) across the cell boundaries, and the second term represents the change of this flux within the cell.

To integrate the 1D steady-state convection-diffusion equation over a typical cell, we can start with the given equation:

D/dx(pu δ) = d/dx (rd δ/dx)

Here, D is the diffusion coefficient, p is the velocity, r is the reaction term, u is the concentration, and δ represents the Dirac delta function.

To integrate this equation over a typical cell, we need to define the limits of the cell. Let's assume the cell extends from x_i to x_i+1, where x_i and x_i+1 are the boundaries of the cell.

Integrating the left-hand side of the equation over the cell, we have:

∫[x_i to x_i+1] D/dx(pu δ) dx = D∫[x_i to x_i+1] d(pu δ)/dx dx

Using the integration by parts technique, the integral can be written as:

= [D(pu δ)]_[x_i to x_i+1] - ∫[x_i to x_i+1] d(D(pu δ))/dx dx

Similarly, integrating the right-hand side of the equation over the cell, we have:

∫[x_i to x_i+1] d/dx (rd δ/dx) dx = [rd δ/dx]_[x_i to x_i+1]

Combining the integrals, we get:

[D(pu δ)][x_i to x_i+1] - ∫[x_i to x_i+1] d(D(pu δ))/dx dx = [rd δ/dx][x_i to x_i+1]

This equation can be further simplified and manipulated using appropriate boundary conditions and assumptions based on the specific problem at hand.

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The inequality that represents all the solutions of -2(3x + 6) ≥ 4(x + 7) is x ≤ -4

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

-2(3x + 6) ≥ 4(x + 7)

Divide both sides of the inequality by -2

So, we have the following representation

3x + 6 ≤ -2(x + 7)

Open the brackets

This gives

3x + 6 ≤ -2x - 14

Add 2x to both sides of the inequality

So, we have the following representations

5x + 6 ≤ -14

Subtract 6 from both sides of the inequality

So, we have the following representations

5x ≤ -20

Divide both side of the inequality

x ≤ -4

Hence, the solution is x ≤ -4

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Answer:y =3 x=1 hope this helps :)

Step-by-step explanation: