Value Determination: Determine the values that x cannot be equal for the rational expression.
(5x-2)/(x^2-5x)

with steps please.

Answer:

what's

Step-by-step explanation:

the test

Answer:

14/x = 1/7.

Step-by-step explanation:

Let x be the number:

14/x = 1/7

The simplified expression in mathematical form is -45.36.

What is an expression?

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation.

The expression given is -

(-15 + (-1.6 + 9.34) / 6) × (3² - 5.7)

Simplifying the terms inside the parentheses first, we get -

(-15 + 7.74 / 6) × (9 - 5.7)

Next, we simplify 7.74 / 6 by dividing the numerator by the denominator -

(-15 + 1.29) × (9 - 5.7)

We add -15 and 1.29 inside the first set of parentheses -

(-13.71) × (9 - 5.7)

We subtract 5.7 from 9 inside the second set of parentheses -

(-13.71) × 3.3

Multiplying these two terms, we get -

-45.363 ≈ -45.36

Therefore, the value is obtained as -45.36.

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Answer:

The graph shows a distribution of data.

A graph shows the horizontal axis numbered 1 to x. The vertical axis is unnumbered. The graph shows an upward trend from 1 to 2 then a downward trend from 2 to 3.

What is the standard deviation of the data?

0.5 <<<------- CORRECT ANSWER

1.5

2.0

2.5

Step-by-step explanation:

EDGE 2021

The standard deviation of the data is,

σ = 0.5

An expression which is defined as the collection of the numbers,  variables and functions by using sign like addition, subtraction, multiplication, and division is called mathematical expression.

Now,

We have in the graph, there is bell-shaped along x =2.

Here, A bell-shaped graph along one value is called symmetric graph and it represents a normal distribution.

Since, The graph is symmetric around x = 2,

Hence, the mean of the data is 2.

And, The point immediate left to the mean represented by x - σ

Hence, We get;

2 - σ = 1.5

So,

σ = 0.5

Thus, The sigma represents standard deviation.

σ = 0.5

Hence, Option A is correct.

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Answer:

6 different ways.

Step-by-step explanation:

(1) Jeff, Lorri, Dan

(2) Jeff, Dan, Lorri

(3) Lorri, Jeff, Dan

(4) Lorri, Dan, Jeff

(5) Dan, Jeff, Lorri

(6) Dan, Lorri, Jeff

Answer:

( f − g) ( 4 ) = − 59

Step-by-step explanation:

Answer:

(f - g)(4) = 1

Step-by-step explanation:

Step 1: Define

f(x) = 4x - 3

g(x) = x + 2x

Step 2: Simplify

g(x) = 3x

Step 3: Find (f - g)(x)

(f - g)(x) = 4x - 3 - (3x)

(f - g)(x) = x - 3

Step 4: Substitute and Evaluate

(f - g)(4) = 4 - 3

(f - g)(4) = 1

Answer:

  A  The amount of money the school charges for all n tickets

Step-by-step explanation:

The number 6 in the term 6n is the "marginal" profit, the additional profit earned from the sale of 1 more ticket. Then 6n represents the revenue from the sale of all n tickets.

Based on the stress-strain curves shown, the most likely statement is that Material A is likely a ceramic material because it shows brittle behavior.

Brittle behavior is characterized by low ductility and little plastic deformation before failure, which is evident in the stress-strain curve for Material A. The curve for Material B shows some plastic deformation before fracture, which indicates a higher level of ductility than Material A. The stress-strain curve for Material C shows a high level of ductility, with a long plastic deformation region before fracture. This behavior is typical of polymeric materials, so Material C is most likely a polymeric material.

It is not possible to determine the specific type of material based solely on stress-strain curves, as many materials can exhibit similar behaviors. Additionally, it is not accurate to say that Material B or Material C are likely ceramic materials based on their stress-strain curves, as both exhibit significant plastic deformation before failure, which is not typical of brittle ceramics.

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Answer:

n

Step-by-step explanation:

The total surface area of the triangular prism using the net is 96 square units

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

The net of a triangular prism

The surface area of the triangular prism from the net is calculated as

Surface area = sum of areas of individual shapes that make up the net of the triangular prism

Using the above as a guide, we have the following:

Area = 2 * 3 * 7 + 6 * 7+ 2 * 1/2 * 2 * 6

Evaluate

Area = 96

Hence, the surface area is 96 square units

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9514 1404 393

Answer:

  Y = x^3 -4x^2 +5x -2

Step-by-step explanation:

The product can be formed in stages. I prefer to figure the squared term first.

  y = (x -2)(x^2 -2x +1)

  y = x(x^2 -2x +1) -2(x^2 -2x +1)

  y = x^3 -4x^2 +5x -2

Answer:

I believe the answer is C. 0.75

Step-by-step explanation:

The  probability that at least one of the next five birds he sees is a robin is 0.75.

Based on the stimulation result shown on the table we can seen that other birds appeared at least 15 times.

Hence:

P(A)=15/20

P(A)=0.75

Therefore the  probability that at least one of the next five birds he sees is a robin is 0.75.

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Step-by-step explanation:

the answer is x=27 sjsisjxjxndnsnaia

Answer:

The answer to your question is x=27.

The vector addition of vector a = < 4, - 3 > and b = < - 1, - 2 > is given by,

a + b = < 3, -5 >

The graph of the vector sum is given below.

The addition of vectors suggests the addition of the corresponding components of the involving vectors.

Given the vectors are:

a = < 4, - 3 >

b = < - 1, - 2 >

So doing vector addition we get,

a + b = < 4, - 3 > + < - 1, - 2 > = < (4 + (-1)), (-3+(-2)) > = < (4 - 1), (-3 -2) > = < 3, -5>

Head to tail method is a method to draw vector addition, where the initial point of a vector involved in vector addition is started from tail point of another vector involved in vector addition.

Using vector tool we draw the vector addition of given vectors 'a' and 'b' we get,

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Answer: Look at the image below

Step-by-step explanation: I took the test.

Step 1: Select Vector

Step 2: Click on (0, 0), then click on (4, -3); (for every point your going to have to click on where you start then where you want to go.)

Step 3: Click on (4, -3), then (3, -5). Why?: ((4 - 1), (-3 - 2)) = (3, -5)

Step 4: To complete the problem and thus completing the "head to tail" method, you need to click on the origin (0,0) and finally click on (3, -5)

Your answer should now look like mine, now go get that A.

In the given problem, by setting up an inequality, the two possible amounts of change are 53p and 67p.

Let's call the cost of the pie "x". Since it is somewhere between £1.30 and £2.99 and is an exact number of pence after adding a 24% tip, we know that:

1.3 <= x <= 2.99 (in pounds)

100x*1.24 is an integer (in pence)

We can simplify the second condition by multiplying both sides by 100 and dividing by 124:

100x is a multiple of 100/124 = 25/31 (in pence)

So we know that x must be a multiple of 25/31 pence, and it must be between 130 and 299 pence. We can write this as:

130 <= 25n/31 <= 299

where n is an integer.

Multiplying both sides by 31 and dividing by 25, we get:

162.8 <= n <= 237.2

Since n must be an integer, the possible values for n are 163, 164, ..., 237.

For each possible value of n, we can calculate the cost of the pie, the total price with tip, and the amount of change we would receive if we paid with a £5 note. We can then check whether we receive exactly 5 coins as change.

For example, if n = 163, then:

100x = 25n = 4075

x = £40.75

total price with tip = £50.57

change = £5.00 - £50.57 = £0.43 = 43p

43p can be given as 20p + 20p + 2p + 1p, so we receive 4 coins in this case.

Similarly, we can check all the other possible values of n and find that there are two values of change that we could receive:

53p (25p + 20p + 5p + 2p + 1p)

67p (50p + 10p + 5p + 2p)

Therefore, the two possible amounts of change are 53p and 67p.

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Brand B contains 3% saline solution by volume. Then, C is the right answer.

Percentage of saline solution in brand B, let x be.

We know that the overall volume of saline solution in the combination is 18% of 6 gallons plus x% of (18 - 6) gallons since Danielle blended brands A and B to make a total of 18 gallons of 8% saline solution.

Then the equation is given as,

0.18(6) + 0.01x(18 - 6) = 0.08(18)

Simplifying and solving for x, we get:

1.08 + 0.12x = 1.44

0.12x = 0.36

x = 3

Therefore, the percentage of saline solution in brand B is 3%.

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Answer:

Express concentrations of solution components using mole fraction and molality

Describe the effect of solute concentration on various solution properties (vapor pressure, boiling point, freezing point, and osmotic pressure)

Perform calculations using the mathematical equations that describe these various colligative effects

Describe the process of distillation and its practical applications

Explain the process of osmosis and describe how it is applied industrially and in nature

Step-by-step explanation:

i helped

The graph of f(x) is the second one, so the correct option is B.

Here we have f(x), a piecewise function, and we want to see which one of the four graphs is the correct one.

You can see that the first domain of the function is:

x ≤ -4

So we must have a closed circle at x = -4, when the parabola ends.

The second domain is:

-4 < x < 1

So x here is not equal to -4 nor 1, so this part starts and ends with open circles.

finally, the linear part starts with a closed circle.

Also, notice that the line has a negative slope, so it goes down, then we can discard the first option.

Then we can see that the correct option is the second graph.

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1) The probability distribution of the average weekly earnings for employees in general automotive repair shops is the sampling distribution of the sample mean. According to the Central Limit Theorem, if the sample size is large enough, the sampling distribution of the sample mean is approximately normal, with a mean equal to the population mean and a standard deviation equal to the population standard deviation divided by the square root of the sample size.

2) To find the probability that the average weekly earnings is less than $445, we can standardize the sample mean and use a z-table. The z-score for $445 is calculated as follows: z = (445 - 450) / (50 / sqrt(100)) = -1. Using a z-table, we find that the probability that the average weekly earnings is less than $445 is approximately 0.1587.

3) Since we are dealing with a continuous distribution, the probability that the average weekly earnings is exactly equal to any specific value is zero.

4) To find the probability that the average weekly earnings is between $445 and $455, we can subtract the probability that it is less than $445 from the probability that it is less than $455. The z-score for $455 is calculated as follows: z = (455 - 450) / (50 / sqrt(100)) = 1. Using a z-table, we find that the probability that the average weekly earnings is less than $455 is approximately 0.8413. Therefore, the probability that it is between $445 and $455 is approximately 0.8413 - 0.1587 = 0.6826.

5) In answering questions 2-4, we made an assumption about the population distribution based on the Central Limit Theorem. We assumed that since our sample size was large enough (n=100), our sampling distribution would be approximately normal.

6) If we assume that weekly earnings for employees in all general automotive repair shops are normally distributed with a mean of $450 and a standard deviation of $50, then we can calculate the z-score for an employee earning more than $480 in a given week as follows: z = (480 - 450) / 50 = 0.6. Using a z-table, we find that the probability that an employee will earn more than $480 in a given week is approximately 1 - 0.7257 = 0.2743.

Answer:

First one is b second one is a thrid is c

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given,

Dimensions of the rectangular prism = 9ft, 12ft and 4ft

Therefore,

Surface area of the rectangular prism

= 2( lb + bh + lh)

\( = 2(12 \times 9 + 9 \times 4 + 12 \times 4) {ft}^{2} \)

\( = 2(108 + 36 + 48) {ft}^{2} \)

\( = 2 \times 192 {ft}^{2} \)

\( = 384 {ft}^{2} \)

Hence,

Surface area of rectangular prism is 384 sq. ft (Ans)

Answer:

D. Raul spent the same amount of time shopping for shoes as he spent shopping for pants

Step-by-step explanation:

just trust me :)

Answer:

6.75 ft^2

Step-by-step explanation:

The area of the seat can be calculated as follows

a + b/2 × h

6+3/2 × 1.5

9/2 × 1.5

4.5× 1.5

= 6.75 ft^2

Hence the area of the seat is 6.75ft^2

The general formula to calculate the simple interest is given to be:

where:

To adjust for daily time periods, we will divide the rate by 365. Therefore, we have the following parameters:

Note: We are working with the assumption that the rate is annual, although not clearly stated.

Substituting these parameters into the formula, we have:

a. 2.625 a point estimate for the average amount lost after one week on this diet. Is this an unbiased estimate of the population mean.

b. 2.412 a point estimate for the variance of the amount lost on this diet. Is this an unbiased estimate of the population variance

c. 1.554 a point estimate for the standard deviation of the amount lost on this diet

a. The point estimate for the average amount lost after one week on this diet can be calculated by finding the sample mean:

mean  = (2.2 + 2.6 + 0.4 + 2.0 + 0.1 + 1.9 + 5.3 + 3.8 + 4.2 + 3.8 + 1.4 + 2.6) / 12

mean  = 2.625

This is an unbiased estimate of the population mean because the sample was randomly selected and there is no reason to suspect any systematic bias.

b. The point estimate for the variance of the amount lost on this diet can be calculated by finding the sample variance:

variance =\(((2.2 - 2.625)^2 + (2.6 - 2.625)^2 + (0.4 - 2.625)^2 + (2.0 - 2.625)^2 + (0.1 - 2.625)^2 + (1.9 - 2.625)^2 + (5.3 - 2.625)^2 + (3.8 - 2.625)^2 + (4.2 - 2.625)^2 + (3.8 - 2.625)^2 + (1.4 - 2.625)^2 + (2.6 - 2.625)^2) / 11\)

variance = 2.412

This is not an unbiased estimate of the population variance because it is calculated using the denominator n-1 instead of n.

This is a correction for the fact that the sample variance tends to underestimate the population variance, but in this case the sample size is relatively small (n=12) so the correction may not be necessary.

c. The point estimate for the standard deviation of the amount lost on this diet can be calculated by taking the square root of the sample variance:

standard deviation = \(\sqrt{(variance)}\) = \(\sqrt{(2.412)}\) = 1.554

This is also not an unbiased estimate of the population standard deviation because it is calculated using the biased estimate of the variance.

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Answer:

The answer to your question is A "In an Old House"  I hope this helps

Sorry if I am wrong

Answer: It would be "In an Old House"

Step-by-step explanation:

Answer:

D(30,60)

Step-by-step explanation:

It was way outside the other points that are around the line.

The point (30,60) is a high leverage point on the regression plot.

High leverage points are those that are extreme but follow the regression equation's trend.

High leverage points are distinct from outliers, which deviate from the graph's or plot's pattern or trend.

Looking closely at the regression plot, the coordinate (30,60) follows the trend of the plot, however, it is farther from the majority of the points on the graph.

Hence, the point (30,60) is a high leverage point on the regression plot.

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Answer:

B

Step-by-step explanation:

millimeter means one-thousandth of a meter meaning the number of millimeters will be larger by a factor of 1000.

Answer:

B

Step-by-step explanation:

Millimetres is A LOT smaller than meters, meaning the individual number of millimetres is larger than the individual number of meters.