what value of y will make the equation true?

Answer:

Yes

Step-by-step explanation:

You are using the x values once, so it will pass the vertical line test.

{(3,4), (5,0), (2,4), (-5,-5)} the relation is a function.

A relation is a function if it has only One y-value for each x-value.

The relation is {(3,4), (5,0), (2,4), (-5,-5)}

Relation on a set may, or may not, hold between two given set members.

Three comma four comma five comma zero two comma four comma minus five comma minus five.

{(3,4), (5,0), (2,4), (-5,-5)} the relation is a function, because in (x,y) the x terms are not repeated.

For every y value there is a unique x value.

Hence, {(3,4), (5,0), (2,4), (-5,-5)} the relation is a function.

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Answer:

36

Step-by-step explanation:

I'm assuming the expression we're solving here is -9(a-6).

-9(2-6)

(-9*2)-(-9*6)

(-18)-(-54)

Simplify.

-18+54

It equals 36.

Hope this helps.

I know this solution but I don't know how I send you the answer....

Step-by-step explanation:

................ +3

2x−3________

.............. 2x−1

Answer:

-8.8

Step-by-step explanation:

First step:

plug in the r so that 21+1/5(-1/2)

second step:

solve the problem so that the problem is now 22/-2.5

third step:

finally you then have to divide 22/-2.5 which is equal to -8.8

hope this helps :)

Answer:10:05

Step-by-step explanation:

subtract 45 from 50!

Answer:

She started the test at 10:05 am

Step-by-step explanation:

Take the end time and subtract the time of the test

10:50-45 = 10:05

She started the test at 10:05 am

the formula for the perimeter (P) of an isosceles trapezoid is:

P = 2 * (base1 + base2) + leg1 + leg2

To find the perimeter of an isosceles trapezoid, follow these steps:

1. Identify the given measurements: In an isosceles trapezoid, know the lengths of the two parallel sides (the bases) and the two non-parallel sides (the legs).

2. Add the lengths of the bases: Add the lengths of the two parallel sides (bases) of the trapezoid.

3. Multiply the sum by 2: Multiply the sum from step 2 by 2 to account for both sides of the trapezoid.

4. Add the lengths of the legs: Add the lengths of the two non-parallel sides (legs) of the trapezoid.

5. Add the results: Add the results from steps 3 and 4 to find the perimeter of the isosceles trapezoid.

Mathematically, the formula for the perimeter (P) of an isosceles trapezoid is:

P = 2 * (base1 + base2) + leg1 + leg2

Alternatively, know the lengths of all four sides of the trapezoid, simply add them together to find the perimeter.

Keep in mind that the measurements used in the formula should be in the same unit (e.g., centimetres, inches) for accurate results.

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Answer:

Step-by-step explanation:

P = a + b + 2c

where a is the top, b is the bottom, and c is a leg of the trapezoid. The perimeter is the sum of the outer edge of the shape, so you just need to add the lengths of the sides.

Answer:

see below

Step-by-step explanation:

(x) = 7 - 2x

Let t(x) =0

0 = 7-2x

Subtract 7 from each side

-7 = -2x

Divide by -2

-7/-2 =-2x/-2

7/2 =x

h(x) = 4x + 2

Replace x with x+3

h(x+3) = 4(x+3) + 2

Distribute

            = 4x+12 +2

            =4x+14

Answer:

19) \(x=\frac{7}{2}\)

20) \(h(x+3)=4x+14\)

Step-by-step explanation:

19)

We have the function:

\(t(x)=7-2x\)

And we want to find x such that t(x)=0.

So, substitute 0 for t(x):

\(0=7-2x\)

Solve for x. Subtract 7 from both sides:

\(-7=-2x\)

Divide both sides by -2:

\(\frac{7}{2}=x\)

Flip:

\(x=\frac{7}{2}\)

20)

We have:

\(h(x)=4x+2\)

To find h(x+3), substitute (x+3) for x. This yields:

\(h(x+3)=4(x+3)+2\)

Multiply:

\(h(x+3)=4x+12+2\)

Add:

\(h(x+3)=4x+14\)

And we're done!

Answer:P=1485 R= 1203

Step-by-step explanation:

For the quadratic function y = ax² + bx + c , for which graph passes through the points (2, 31), (3 , 45) , (1, 19) is given by y = x² + 9x + 9.

As given in the question,

Standard form of quadratic function,

y = ax² + bx + c

Graph of the quadratic function passes through the points  (2, 31),

(3 , 45) , (1, 19) .

When passes through (2, 31)

31 = 4a + 2b + c __(1)

Passes through (3,45)

45 = 9a + 3b + c  __(2)

Passes through (1, 19)

19 = a + b + c __(3)

Multiply 9 to (3) and subtract (2) from it,

9a + 9b + 9c =171

9a +3b + c = 45

      6b + 8c = 126 ____(4)

Now, Multiply 4 to (3) and subtract (1) from it,

4a + 4b + 4c =76

4a +2b + c = 31

      2b + 3c = 45____(5)

Multiply 3 to (5) and subtract (4) from it,

6b + 9c = 135

6b + 8c =126

       c = 9

Substitute c= 9 in (5) we get,

2b + 3(9) = 45

⇒ b = 9

Now , substitute b = 9, c = 9 in (3) we get,

a + 9 + 9 = 19

⇒ a = 1

Required quadratic function is :

y = x² + 9x + 9  

Therefore, for the quadratic function y = ax² + bx + c , for which graph passes through the points (2, 31), (3 , 45) ,(1, 19) is given by y =x² + 9x + 9.

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Here is the completed table

Distance in miles  Frequency

1 to 5                          5

6 to 10                        1

11 to 15                        2

16 to 20                       2

The frequency of a dataset is the number of times a value appears in the dataset. The data are divided into classes.

In order to determine the frequency of the class 1 to 5, count the number of times values between 1 to 5 appear in the dataset. The values between 1 and 5 that are in the dataset are 2, 3, 5, 5, 5. This means that numbers between 1 and 5 appear 5 times in the dataset.

In order to determine if the frequencies are correct, add the frequency of each class together. Then count the total number in the dataset. These values should be equal. The dataset contains 10 values and the sum of the frequencies is 10.

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Answer:

Step-by-step explanation:

Responder:

$ 7540

Explicación paso a paso:

Dado que:

Kilogramos totales de papa = 6500

Número de kilogramos por paquete = 25

Precio por paquete = $ 30

La mitad se vendió a $ 30

El resto se vende a ($ 30 - $ 2)

Número total de paquetes de 25 kg:

6500 kg / 25 kg = 260 paquetes

Por lo tanto, paquete total = 260 paquetes

La mitad se vende a $ 30:

(260/2) * 30

130 * $ 30 = $ 3900

Resto vendido a $ 28:

(260 - 130) * $ 28

130 * $ 28 = $ 3640

Cantidad total realizada:

$ (3640 + 3900) = $ 7540

Answer: A

Step-by-step explanation:

Substituting into vertex form, we get that:

\(f(x)=a(x-10)^{2}\)

Where a is a constant.

Now we know that it passes through the point (0, -25), so we can use that to find a.

\(-25=a(0-10)^{2}\\-25=100a\\a=-1/4\)

So we get that \(f(x)=-\frac{1}{4}(x-10)^{2}\)

The probability that the answerof the 1st question is correct is 1/15.

So, the probability of the correct answer:

Probability formula: P = Favourable events/Total events

Where total events are 15 and favorable event is 1.

Now calculate as follows:

Therefore, the probability that the answerof the 1st question is correct is 1/15.

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Solving for D as in Interval Notation

What is Interval Notation ?

A set of real numbers known as an interval contains all real numbers that fall inside any two of the set's numbers. For instance, the interval containing 0, 1, and all integers in between is the set of values x satisfying 0 x 1.

6 - 1d < 15

To find the interval of first piece, find where the inside of the absolute value is non-negative.

6 - 1d ≤ 0

d ≤ 6

In the piece where 6 - 1d is non-negative

now,

Solve 6 - 1d < 15 for d .

Move the non-containing to right hand side of inequality

-1d < 15 - 6

-1d < 11

divide both side by -1 , as we divide the side by negative term the inequality sign will also change

d > -11

the union of the solution will be

(-∞, -11)

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The surface area of the monument shaped like a square pyramid is 14 m².

Area is the amount of space that is occupied by a two dimensional shape or object.

From the diagram

Area of each triangle = (1/2) * base * height = (1/2) * 2 * 2.5 = 2.5 m²

Area of square = length * length = 2 m * 2 m = 4 m²

Surface area of monument = 4(2.5) + 4 = 14 m²

The surface area of the monument shaped like a square pyramid is 14 m².

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Answer: A

Step-by-step explanation:

I graphed it using my graphing calculator. the maximum point is -2, 9. f(x) means y so graphing just requires you to type the equation into a calculator and replace the f(x) with y. sorry if that doesnt make sense. no money

In the statement "she come to think of it she was kind of like a bird herself" the bird symbolizes  peace, hope, and comfort .

What is the Symbolism of  bird in the Trifle ?

A bird is used in reference to main character of the play, Minnie Foster,  after her marriage to John Wright she became Mrs. Wright .

Mrs. Wright have a canary in cage in their farmhouse. The bird used to sing a lot, and Mr. Wright did not like the bird's singing. There family did not have any child . That's why she bought a bird.

The bird was Mrs.Wright whole world. When her husband took the life of bird, Mrs.Wright 's heart got broken. She loved the bird and after her husband Mr. Wright killed bird there was so much  hatred towards the husband.  

Therefore , In the play Trifles, bird symbolize peace, hope, and comfort.  

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(a) The z-score corresponding to x = 25 is -1. (b)The z-score corresponding to x = 42 is 2.4.(c) The raw score corresponding to z = -3 is 15. (d)  The raw score corresponding to z = 1.5 is 37.5.

For a normal distribution with mean μ = 30 and standard deviation σ = 5:

(a) To find the z-score corresponding to x = 25, we use the formula:

z = (x - μ) / σ

Substituting the values, we get:

z = (25 - 30) / 5 = -1

Therefore, the z-score corresponding to x = 25 is -1.

(b) To find the z-score corresponding to x = 42, we again use the formula:

z = (x - μ) / σ

Substituting the values, we get:

z = (42 - 30) / 5 = 2.4

Therefore, the z-score corresponding to x = 42 is 2.4.

(c) To find the raw score (x) corresponding to z = -3, we use the formula:

z = (x - μ) / σ

Rearranging the formula, we get:

x = μ + zσ

Substituting the values, we get:

x = 30 + (-3) x 5 = 15

Therefore, the raw score corresponding to z = -3 is 15.

(d) To find the raw score (x) corresponding to z = 1.5, we use the same formula:

x = μ + zσ

Substituting the values, we get:

x = 30 + 1.5 x 5 = 37.5

Therefore, the raw score corresponding to z = 1.5 is 37.5.

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Answer:

$1761

Step-by-step explanation:

9*5=45

36.80*45=1656

21*5=105

1656+105=1761

Let us first understand what is meant by the term probability of happening of an event. The term probability of an event happening tells us about the extent or how many times it is likely to happen in a given number of tries. For example, if we throw a die of six faces, then the probability of a number to come on the top of the dice tells us about the extent to which that is likely to occur.

The probability of an event to occur in an experiment is equal to the ratio of the outcomes in which this event happens to the total number of outcomes of the experiment. A pack of cards contains 52 total cards. Therefore, when we pick a card from the set there can be 52 different outcomes.

(i) A pack of cards contains 13 red cards. Therefore, out of those 52 outcomes, 13 outcomes are required. Hence, the probability of getting a red card is 1352=14.

(ii) A pack of cards contains 13 black cards. Therefore, out of those 52 outcomes, 13 outcomes are required. Hence, the probability of getting a black card is 1352=14

(iii) A pack of cards contains 4 black cards. Therefore, out of those 52 outcomes, 4 outcomes are required. Hence, the probability of getting an ace is 452=113.

Note: Note that probability is not always sure or it doesn’t guarantee that the specific event will surely happen in those number of trials. This means that the probability of getting an ace card does not mean that in four tries we will surely get an ace. Probability just tells us how likely the event may happen.

The cost of "x" radios is $10x and transportaiton fee of $5. So cost equation for "x" radios is,

(b)

The selling price of one radio is $12. So for "x" radio Profit(selling price) equation is,

(c)

Determine the value of x for which profit equation is equal to cost equation.

The number of radios can never be in fraction. So individual has to buy 3 radios to have equal cost and profit,.

Answer:

-4

Step-by-step explanation:

\(Given:\) Line segment PQ with points P(-2.5) and Q(-1,1)

m = (y₂ - y₁)/(x₂ - x₁)

m = (1 - 5)/(-1 - (-2)) = -4/1 = -4

Answer:

-4/1

Step-by-step explanation:

The main threat to concluding that the tutor was effective in helping students understand confounding and obscuring variables is the issue of 'practice effects'.

Practice effects occur when exposure to specific materials or questions during a study can artificially inflate performance on subsequent measures, such as an exam.

In this case, if the practice questions from the tutor were exactly the same as those on the exam.

Then the students who interacted with the tutor may have had an advantage on the exam .

Due to familiarity with the questions rather than a true understanding of the material.

The use of the same practice questions in the tutor and on the exam .

It represents a potential confounding variable that could affect the interpretation of the results.

It is possible that the tutor may have been effective.

But it is also possible that the practice effect of the repeated questions contributed to the observed improvement in performance.

Future research could use different practice questions in the tutor and on the exam.

Use a different exam altogether to assess performance.

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(a) The real discrete Fourier transform (DFT) is calculated for the given data set to analyze the helicopter's acoustic signature.

(b) To obtain the ck values and illustrate the relative size of each term in the Fourier series, we calculate the magnitude of each coefficient and plot their amplitudes on a bar graph against the corresponding frequency component, k.

To analyze the helicopter's acoustic signature, the real DFT is computed for the provided data set. The DFT transforms the time-domain measurements of acoustic pressure into the frequency domain, revealing the different frequencies present and their corresponding amplitudes. This analysis helps in understanding the spectral characteristics of the helicopter's acoustic signature and identifying prominent frequency components.

Using the Fourier series representation, the amplitudes (ck's) of the different frequency components in the Fourier series are determined. These amplitudes represent the relative sizes of each term in the series, indicating the contribution of each frequency component to the overall acoustic signature. By plotting the amplitudes on a bar graph, the relative strengths of different frequency components become visually apparent, enabling a clear comparison of their importance in characterizing the helicopter's acoustic signature.

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Answer:

3x + 5 + 6x -6 = 80

9x -1 = 80

9x = 81

x = 9

3(9) +5 = 32

< DBC = 32

6(9)-6 = 48

<ABC = 48

The p-value of the given hypothesis is; 0.9999

The formula for the z-score of proportions is;

z = (p^ - p)/√(p(1 - p)/n)

where;

p^ is sample proportion

p is population proportion

n is sample size

We are given;

p^ = 15% = 0.15

p = 20% = 0.2

n = 5000

Thus;

z = (0.15 - 0.2)/√(0.2(1 - 0.2)/5000)

z = -8.8388

From p-value from z-score calculator, we have;

P(Z < -8.8388) = 1 - 0.0001 = 0.9999

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The time taken to run out of tile is approximately 83 days. In the coordinate plane, x represents the number of days and y represents the number of tiles used.

Coordinates are the set of points in a geometrical plane or space, which is used to denote the exact point in the coordinate plane or space.

Given that,

Total number of tiles = 2240

Number of tiles used in 1 day = 27

Let number of tiles used in x days = 2240

Then,

x = 2240 / 27 = 82.96

That is, 2240 tiles can be used for approximately 83 days.

In a coordinate plane, x is the independent variable and y is the dependent variable.

Here independent variable is the number of days and dependent variable is the number of tiles used.

So, x represents the number of days and y represents the number of tiles used.

The equation representing this is y = 27x.

When x = 2, y = 54

Point (2, 54) represents that number of tiles used in 2 days is 54.

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