helppppp meeeeee pleaseeeee​

Answer:

(7,2)

Step-by-step explanation:

Multiply the first equation by -3

(x-3y=1)  = -3x+9y=-3

Combine like terms with the new equation and the second equation

(-3x+9y=-3) + (3x-5y=11)   = 4y=8

Divide each side by 4

4y/4=8/4

y=2

Plug in 2 for y in any equation. It doesn’t matter which one

x-3(2)=1

Distribute

x-6=1

Add 6 to both sides

x-6=1

+6  +6

x=7

Answer: x = 7 y = 2

(7, 2)

Step-by-step explanation:

Multiply the first equation by -3 and the second by 1:

-3(x - 3y = 1)

1(3x - 5y = 11)

Becomes:

-3x + 9y = -3

3x - 5y = 11

Add the equations to eliminate x:

-3x + 9y = -3

3x - 5y = 11

4y = 8

Solve for y by dividing by 4:

4y/4 = 8/4

y = 2

Now we plug in y to the first equation:

x - 3 ( 2 ) = 1

x - 6 = 1

Add 6 to both sides:

x - 6 + 6 = 1 + 6

x = 7

Factoring polynomials with a leading coefficient greater than 1 is to use the factoring by grouping technique or quadratic formula.

Factoring a polynomial with a leading coefficient greater than 1 can be more challenging than factoring a polynomial with a leading coefficient of 1. However, there are several methods and techniques that can be used to factor such polynomials.

One common method for factoring polynomials with a leading coefficient greater than 1 is to use the factoring by grouping technique. This involves grouping the terms of the polynomial in pairs and factoring out the greatest common factor of each pair.

The resulting expressions can then be further factored or combined to obtain the final factorization of the polynomial.

Another method for factoring polynomials with a leading coefficient greater than 1 is to use the quadratic formula, which can be used to find the roots of a quadratic polynomial. Once the roots are found, the polynomial can be factored as a product of linear factors.

In some cases, it may also be helpful to use a combination of these techniques, along with other algebraic manipulations, such as completing the square or long division.

Overall, factoring a polynomial with a leading coefficient greater than 1 may require more patience and creativity than factoring a polynomial with a leading coefficient of 1, but with practice and persistence, it is possible to develop the skills and techniques needed to factor such polynomials efficiently and accurately.

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Step-by-step explanation:

it will be 20

its 4 and 5 you can als9 multiply it

Answer:1/30

Step-by-step explanation:

green: 3/10

purple don't replace: 1/9

3/10*1/9=1/30

The expected count in the joint category of C and X is 3.4.

To find the expected count in the joint category of C and X, we need to calculate the row and column totals for categories C and X.

The row total for category C is the sum of the counts in the third row: 18 + 1 + 5 = 24.

The column total for category X is the sum of the counts in the second column: 10 + 6 + 1 = 17.

To find the expected count in the joint category of C and X, we use the formula:

Expected count = (row total * column total) / grand total

where the grand total is the total count in the table, which is 11 + 10 + 3 + 15 + 6 + 2 + 18 + 1 + 5 = 71.

Plugging in the values, we get:

Expected count in category C and X = (24 * 10) / 71 = 3.4 (rounded to 1 decimal place)

Therefore, the expected count in the joint category of C and X is 3.4.

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The coordinate of the midpoint of the segment with the given endpoints is ( 1/2, -6 ).

The midpoint formular used in finding the midpoint of a segment is expressed as;

( [x₁+x₂]/2 , [y₁+y₂]/2 )

Given the data in the question;

Point V(-2,5)

Point Z(3,-17)

Plug these values into the equation above.

( [x₁+x₂]/2 , [y₁+y₂]/2 )

( [(-2) + 3]/2 , [5 + (-17)]/2 )

( 1/2 , -12/2 )

( 1/2, -6 )

The coordinate of the midpoint of the segment with the given endpoints is ( 1/2, -6 ).

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The value of the equation x² - x + 3 is 37/9.

We have,

We can start by multiplying both sides of the equation by x:

2x - 3/x = x + 1

2x - 3 = x^2 + x

Rearranging and simplifying, we get:

x^2 - x + 3 = (2x - 3) + x^2

x^2 - x + 3 = x^2 + 2x - 3

-x + 3 = 2x - 3

5 = 3x

x = 5/3

Now we can substitute x into the equation x^2 - x + 3:

x^2 - x + 3 = (5/3)^2 - 5/3 + 3

x^2 - x + 3 = 25/9 - 15/9 + 27/9

x^2 - x + 3 = 37/9

Therefore,

The value of x² - x + 3 is 37/9.

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The weight that corresponds to each event can be calculated using the mean and standard deviation of the normally distributed random variable.

Since the weight of a small Starbucks coffee follows a normal distribution with a mean of 390 grams and a standard deviation of 9 grams .We can use the properties of the normal distribution to find the weight corresponding to each event. To find the weight corresponding to a specific event, we can use the z-score formula: z = (x - μ) / σ, where x is the weight, μ is the mean, and σ is the standard deviation. Rearranging the formula, we have x = z * σ + μ. For example, to find the weight corresponding to an event with a z-score of -1.5, we can substitute the values into the formula:

x = (-1.5) * 9 + 390

x = 375.5 grams.

The weight corresponding to the event with a z-score of -1.5 is 375.5 grams. Using the z-score formula, we can find the weight for any desired event we can use the properties of the normal distribution to find the weight corresponding to each event.

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Answer: D-neither

Step-by-step explanation:

-6+20=4+12

-9+15=6+9

Answer:

Step-by-step explanation:

Answer:

The greatest of the integers is 129 (C).

Step-by-step explanation:

Let x be the first integer.

x + (x + 2) = 256

2x + 2 = 256

2x = 254

x = 127

127 + 129 = 256

The required value of the larger integer is 129.

The sum of two odd integers is 256. The value of the larger integer is to be determined.

Integers are to be defined as the number on the number line but not rational or fraction.

Here.
let the two odd integers be (2n+1) and (2n-1).
The sum of two odd integers is 256. i.e.
2n+1+2n-1=256
4n=256
n = 64
Then the two odd integers are given as,
1st = 2n+1 = 2*64+1 = 129
2nd = 2n-1 = 2*64-1 = 127
129>127

Thus, the required value of the larger integer is 129.

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The study of statistics rests on two major​ concepts:

Variation and Data.

Correct option is C.

Statistics is simply defined as the study and manipulation of data. Statistics deals with the analysis and computation of numerical data.

Given,

The study of statistics rests on what two major​ concepts:

Variance and Data

The basics of statistics include the measure of central tendency and the measure of variation. The central tendencies are mean, median and mode and variation, comprise variance and standard deviation.

Mean is the average of the observations. Median is the central value when observations are arranged in order. The mode determines the most frequent observations in a data set.

Hence, Variation and Data are two major concepts, on which study of statistics rely.

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Answer:

\(2,000lb < 1 t\)

Step-by-step explanation:

1 Ton = 2,240 lb

The quadratic inequality defined on the graph is given as follows:

y ≥ 2/3(x + 3)² - 24.

The coordinates of the vertex of the quadratic function are given as follows:

(-3, -24).

Hence the quadratic function is given as follows:

y = a(x + 3)² - 24.

In which a is the leading coefficient.

When x = 3, y = 0, hence the leading coefficient a is obtained as follows:

0 = a(3 + 3)² - 24

36a = 24

a = 24/36

a = 2/3.

Hence:

y = 2/3(x + 3)² - 24.

The quadratic function has a solid curve, and the values above it are pained, hence the inequality is given as follows:

y ≥ 2/3(x + 3)² - 24.

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Well, since they have to have the same number of hours and one of them gets shifts in blocks of 12 hours, the minimum needed would be 12 hours.

one 12-hour shift is the minimum and one 12-hour shift is the same time as six 2-hour shifts.

Roxanne will need to keep that pattern (one 12-hour shift and six 2-hour shifts) to keep the hours the same.  So she could assign 12 hours, 24 hours, 36 hours, etc.

The total amount of water deposited at the research site whenever an inch of rainfall occurs is 14400 cubic inches.

The first thing to do is to determine the volume of water deposited per square foot of surface area with 1 inch of rainfall.

This is given as 144 cubic inches (0.623 gallons).

To find the total amount of water that will be deposited at the research site whenever an inch of rainfall occurs, the surface area must first be determined.

All research sites are 100 square feet in area.

Now, multiply the volume of water deposited per square foot of surface area with 1 inch of rainfall by the surface area to obtain the total amount of water deposited at the research site with 1 inch of rainfall.

Volume of water deposited per square foot of surface area with 1 inch of rainfall

= 144 cubic inches (0.623 gallons)

Total surface area of all research sites

= 100 square feet

Total amount of water deposited at the research site with 1 inch of rainfall

= 144 cubic inches x 100 sq feet
= 14400 cubic inches

Therefore, the total amount of water deposited at the research site whenever an inch of rainfall occurs is 14400 cubic inches.

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Answer:

Step-by-step explanation:

Number of rounds:

\(\\ \sf\longmapsto \dfrac{2km}{400m}\)

\(\\ \sf\longmapsto \dfrac{2}{0.4}\)

\(\\ \sf\longmapsto 5rounds\)

The two possible positions of point P are:

(3, -5) and (0.6, 5.8)

We know that point P lies on the line:

y = 4 - 3*x

And that the distance between P and the origin is √34, then if the coordinates of point P are (x, y), we have that:

\(\sqrt{34} = \sqrt{x^2 + y^2}\)

Now, we can replace "y" in the distance equation by the linear equation, and also remove the square roots:

\(34 = x^2 + (4 - 3x)^2\)

Now we can solve the quadratic equation for x:

\(34 = x^2 + 9x^2 + 16 - 24x\\\\10x^2 - 24x - 18 = 0\\\\\)

The solutions are:

\(x = \frac{24 \pm \sqrt{(-24)^2 - 4*10*(-18)} }{2*10} \\\\x = \frac{24 \pm36}{20}\)

So the two solutions are:

x = (24 + 36)/20 = 3

x = (24 - 36)/20 = -0.6

To get the points, we need to evaluate y on these values:

y = 4 - 3*3 = -5   So we have P = (3, -5)

y = 4 - 3*(-0.6) = 2.2 So we have the point (0.6, 5.8)

There are the two possible positions of point P.

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Answer:

3

Step-by-step explanation:

The coordinates of C'' is \(C''(x,y) = (-7,4)\).

In this question we must rotate every point of the trapezoid ABCD around the origin, which is defined by the following vectorial formula:

\(P'(x,y) = O(x,y) + (r_{OP, x}\cdot \cos \theta - r_{OP,y}\cdot \sin \theta, r_{OP,x}\cdot \sin \theta +r_{OP,y}\cdot \cos \theta)\) (1)

Where:

Later, we apply the following translation:

\(P''(x,y) = P'(x,y) + (-6,0)\) (2)

If we know that \(O(x,y) = (0,0)\), \(r_{OC,x} = 4\), \(r_{OC,y} = 1\), \(\theta = 90^{\circ}\) and \(C(x,y) = (4,1)\), the coordinates of C'' are:

\(C'(x,y) = (0,0) + (4\cdot \cos 90^{\circ}-1\cdot \sin 90^{\circ}, 4\cdot \sin 90^{\circ}+1\cdot \cos 90^{\circ})\)

\(C'(x,y) = (-1, 4)\)

\(C''(x,y) = (-1,4) +(-6,0)\)

\(C''(x,y) = (-7,4)\)

The coordinates of C'' is \(C''(x,y) = (-7,4)\).

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Answer:

350 millilitres

Step-by-step explanation:

70/100×500=350

13, 21, 34, 55, and 89 are the next five terms, then write a conjecture. 1, 1, 2, 3, 5, 8​

The given sequence is 1, 1, 2, 3, 5, 8.

To find the following five terms, we continue the pattern of the Fibonacci sequence, where each time is the sum of the two preceding terms.

The next five terms are:

13, 21, 34, 55, 89

Conjecture: Based on the pattern observed in the sequence, the sequence appears to follow the Fibonacci sequence. The Fibonacci sequence is characterized by starting with two 1s, and each subsequent term is the sum of the two preceding terms. Therefore, we can conjecture that the sequence continues in the Fibonacci pattern.

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The prediction for average temperature is 53.06° F

Given: The equation for line of best fit:

y = -3.32x + 97.05

What is line of best fit?

Line of best fit is the line that is drawn through the points and it minimizes the error between the actual data and the predicted data.

In a regression graph, there are many scattered points and it becomes very difficult to predict a general equal if we focus on the coordinates and relations of each points. The line of best fit, is a line that passes through the center or from a position where the error between the point and the line is the minimum and it becomes easy to predict or a derive an equation or a relation.

What is a response variable?

A response variable is a variable that is dependent on one or more independent or dependent variables for it's value. So let's say in this equation y = mx + c, y is the response variable as on the change of variable x , y will have different values that is y will response differently for different values of x. Hence y is the dependent variable.

What is predictor variable?

A predictor variable is a variable that is independent of the influence from any other variable, and a change in this variable will give different outcomes. It is called predictor because or a change in it's value we can predict an outcome.

Let's solve the question that is given:

Now y is the response variable and x is the predictor variable.

From the given graph, we see

x = inches of rain

y = average temperature

To make the prediction for x = 13.25, we place the value of x in the equation of line of best fit, that is:

y(13.25) = -3.32*13.25 + 97.05 = 53.06

Hence our prediction or the response for average temperature is 53.06° F

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We can determine coordinates if point t is between points u and v by checking if u < t < v or v < t < u.

To determine if point t is between points u and v, we need to compare their coordinates. If u < v, then point t is between points u and v if and only if u < t < v. On the other hand, if v < u, then point t is between points u and v if and only if v < t < u.

Whether or not point t is between points u and v depends on the relationship between the coordinates of u and v. If u < v, t must fall between them, and if v < u, t must also fall between them.

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The order to determine whether the sample size of 81 people is adequate to compute a confidence interval for the percentage of U.S. adults who spend more than 20 hours a week on a home computer.

we must take into account the conditions for using normal approximation methods.For the normal approximation to be trustworthy, often both the sample size and the projected number of successes and failures need to be significant. A basic guideline is that both np and n(1-p) should be more than or equal to 5, when n is the sample size and p is the predicted proportion.We have 36 achievements in this case out of 81 people (those that use a computer for more than a.

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Answer:

\(y > \frac{2x}{3} + 1\)

Step-by-step explanation:

Given:

The graph in the attachment where the coordinates are (3,3) and (-3,-1)

Required:

Which inequality represent the graph

The first step is to determine the slope of the graph

\(m = \frac{y_2 - y_1}{x_2 - x_1}\)

Where m represents the slope, \((x_1, y_1) = (3,3)\) and \((x_2, y_2) = (-3,-1)\)

\(m = \frac{-1 - 3}{-3 - 3}\)

\(m = \frac{-4}{-6}\)

Simplify to lowest term

\(m = \frac{2}{3}\)

Next is to determine the equation of the line using the slope formula

\(m = \frac{y - y_1}{x - x_1}\), \((x_1, y_1) = (3,3)\)  and \(m = \frac{2}{3}\)

\(\frac{2}{3} = \frac{y - 3}{x - 3}\)

Cross multiply

\(2 * (x - 3) = 3 * (y - 3)\)

Open both brackets

\(2 x - 6 = 3y -9\)

Collect like terms

\(2 x - 6 +9= 3y\)

\(2 x+3= 3y\)

Divide through by 3

\(\frac{2x}{3} + \frac{3}{3} = \frac{3y}{3}\)

\(\frac{2x}{3} + 1 = y\)

Reorder

\(y = \frac{2x}{3} + 1\)

Next is to determine the inequality sign

The inequality becomes

\(y > \frac{2x}{3} + 1\)

Answer:

See below.

Step-by-step explanation:

Mean:6.87

Median:9

Mode:10

Range:8

Standard Deviation:2.84

-hope it helps

The graph of the sin function 5sin(pi/2 x-pi) +3 is given as follows.

A function's graph is stretched or compressed vertically in proportion to the graph of the original function when we multiply it by a positive constant. We obtain a vertical stretch if the constant is bigger than 1, and a vertical compression if the constant is between 0 and 1. Figure 3-13 illustrates the vertical stretch and compression that follow from multiplying a function by constant factors 2 and 0.5. Graph of a function illustrating vertical expansion and contraction.

Given function is:

5sin(pi/2 x-pi) +3

The graph of the sin function is shifted by 3 and is compressed by 5.

Thus, the graph is as follows.

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9514 1404 393

Answer:

  400; building and equipment fixed cost

Step-by-step explanation:

The cost equation has two terms. The constant term (400) is the daily fixed cost of building and equipment. The variable term (175p) represents the cost of producing p phones.

The y-intercept is 400. It is the daily fixed cost of the building and equipment.

Answer:

The y-intercept of the function is 400 which represents the fixed cost for rent and equipment.

Step-by-step explanation:

Since Parker must pay $400 even to make 0 phones, that means $400 is the fixed cost that Parker must pay for rent and equipment regardless of the number of phones produced.

Have a good day :)

A vertical asymptote is a line on the x-axis where the graph of a function approaches infinitely close but does not actually reach. In this case, the vertical asymptote is x = 4.
In exploration 4.3.3, the vertical asymptote for question 2 is at x = -2. Let's see what is meant by a vertical asymptote.What is a vertical asymptote?A vertical asymptote is a line that a function approaches but never touches.

The curve gets arbitrarily close to the vertical line but never touches it. When the function approaches a vertical asymptote, the function approaches infinity or negative infinity.For instance, consider the function f(x) = 1/x. It has a vertical asymptote at x = 0. This is because the function's value becomes increasingly larger as x approaches 0 from the positive side, and the value of the function becomes increasingly smaller as x approaches 0 from the negative side.Therefore, if a curve goes on increasing or decreasing on both sides of a vertical line (called a vertical asymptote), the curve approaches that line but never touches it. This is the basic idea of a vertical asymptote.What is the vertical asymptote for question 2?The rational function f(x) = (x + 2) / [(x + 2)^2 - 4] is being studied in question 2 of exploration 4.3.3. It can be seen that (x + 2)^2 - 4 = (x + 2 - 2)(x + 2 + 2) = (x)(x + 4).Therefore, the denominator (x + 2)^2 - 4 can be written as (x)(x + 4).The vertical asymptotes of a rational function occur where the denominator equals zero. Since the denominator is (x)(x + 4), the vertical asymptotes occur where x = 0 or x = -4.However, x = 0 is not a vertical asymptote because there is a hole in the graph. So, the only vertical asymptote is at x = -2. This means that the curve approaches x = -2 but never touches it. Therefore, the vertical asymptote for question 2 in exploration 4.3.3 is x = -2.

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Answer:

37 degrees

Step-by-step explanation:

Answer:

A=37

Step-by-step explanation:

Option a, adjacency matrix. An adjacency matrix is a two-dimensional array that represents a graph's edges, where the rows and columns correspond to the vertices of the graph. If there is an edge between two vertices, the corresponding element in the matrix is set to 1, otherwise it is set to 0. This implementation is useful for dense graphs, where the number of edges is close to the maximum possible number of edges.

An adjacency matrix is a simple and efficient way to represent graphs that have a large number of vertices and edges. It allows for fast lookups of the existence of an edge and is useful for various algorithms that require graph representation. However, it is not suitable for sparse graphs, where the number of edges is much smaller than the maximum possible number of edges. In such cases, an adjacency list would be more appropriate.

The common implementation of a graph that uses a two-dimensional array to represent the graph's edges is called an adjacency matrix.

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