How do you solve a system of three equations in two variables?

Answer:

exterior angle = 180° - 120°

                        = 60°

Answer:

60 degrees

Step-by-step explanation:

180-120=60

The graph of the equation y = 7.5x shows the proportional relationship.

An equation is a combination of different variables, in which two mathematical expressions are equal to each other.

The given equation is,

y = 7.5x.

The graph of the equation y = 7.5x is shown below.

At x = 1, the value of y = 7.5,

At x = 2, the value of y = 7.5 x 2 = 15

At x = 3, the value of y = 7.5 x 3 = 22.5

And so on.

The value of y multiplied by 7.5 by increasing value of x by 1.

Thus, the graph of the equation  y = 7.5x shows the proportional relationship.

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Step-by-step explanation:

directly proportional means

y = kx

to find k we use the first given pair (8, 6) :

6 = k×8

k = 6/8 = 3/4

so, for x = 10

y = 3/4 × 10 = 30/4 = 7.5

Answer:

width is 3.56

Step-by-step explanation:

Area is = width x length

so Area/length

so 56.96/16=3.56

The width of the rectangle is 3.56 m and the perimeter is 39.12 m.

To find the width of the rectangle,

We need to use the formula for the area of a rectangle, which is:

Area = Length x Width

We know that the area of the rectangle is 56.96 m², and the length is 16 m. So,

We can substitute these values into the formula and solve for the width:

56.96 m² = 16 m x Width

Width = 56.96 m² / 16 m

Width = 3.56 m

Therefore, the width of the rectangle is 3.56 m.

To find the perimeter of the rectangle,

We need to use the formula:

Perimeter = 2 x Length + 2 x Width

We know that the length is 16 m and the width is 3.56 m,

So we can substitute these values into the formula and solve for the perimeter:

Perimeter = 2 x 16 m + 2 x 3.56 m

Perimeter = 32 m + 7.12 m

Perimeter = 39.12 m

Therefore, the perimeter of the rectangle is 39.12 m.

In conclusion, the width of the rectangle is 3.56 m and the perimeter is 39.12 m when the area is 56.96 m² and the length is 16 m.

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The three semantics models of parameter passing for subprograms are:  in mode, out mode, and inout mode

In this question we need to describe the three semantics models of parameter passing for subprograms.

The three semantics models of parameter passing for subprograms are:

1) in mode: They can receive data from corresponding actual parameters.

2) out mode: They can transmit data to the actual parameter.

3) inout mode: They can do both.

There are two conceptual models of how data transfers take places in parameter transmission: either an actual value is copied (to the caller, to the callee, or both ways), or an access path is transmitted.

Generally, the access path is a simple pointer or reference.

Therefore, in mode, out mode, and inout mode are 3 semantics models of parameter passing for subprograms

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The nature of the roots of the given equation x^2 - 3x - 4 = 0 is real and unequal.

The general form of a quadratic equation is ax^2 + bx +c = 0.

Comparing the given equation x^2 - 3x - 4 = 0 with the general form of quadratic equations, we get that:

a = 1,  b = -3 and c = -4

If b^2 - 4ac > 0, then we say that the nature of the roots of the equation is real and unequal.

Therefore,  b^2 - 4ac = (-3) ^ 2 - 4 x 1 x (-4) = 25 >0

Hence, we conclude that the nature of the roots of the given equation is real and unequal.

The question is incomplete, the complete question is:

What is the nature of the roots of x² − 3x - 4 = 0?

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An asymptote is a line that a curve approaches but never touches, so it is not part of the curve itself. As a result, an asymptote is not a function. However, the curve that approaches an asymptote may or may not be a continuous function.

A function is continuous if it is defined for all values in its domain and there are no breaks or jumps in the graph of the function.

For example, consider the function f(x) = 1/x. This function has a horizontal asymptote at y = 0, but it is not continuous at x = 0 because the value of the function is undefined at this point (division by zero is not allowed).

On the other hand, consider the function f(x) = ². This function has no asymptotes and is continuous for all values of x.

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To find the inverse of a function you just have to switch the x and the y and then solve for y.

Inverse Function

An inverse function or an anti function is defined as a function, which can reverse into another function. In simple words, if any function “f” takes x to y then, the inverse of “f” will take y to x. If the function is denoted by 'f' or 'F', then the inverse function is denoted by f^-1 or F^-1.

The inverse function returns the original value for which a function gave the output.

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The given quadratic equation 2x²-4x+3=0 has no real roots.

The roots of the quadratic equation are real and equal if the discriminant equals zero, a, b, and c are real values and a≠0.

The roots of the quadratic equation are real and unequal if the discriminant is greater than zero, a, b, and c are real values, and a≠0.

The quadratic equation's roots are imaginary and unequal if the discriminant is less than zero, a, b, and c are real integers and a≠0.

2x²-4x+3=0

Comparing the equation with ax²+bx+c=0

We know that,

D = b²-4ac

  = (-4)²-4(2)(3)

  = 16- 24

  = -8

Since D < 0

Hence, the given equation 2x²-4x+3=0 has no real roots.

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The expression which represents the sum of polynomials (9-3x²) and (-8x²+4x+5) is -11x² + 4x + 14

What is polynomial equation?

A polynomial equation is an algebraic equation that consists of variables and coefficients, which are often real numbers, and exponents which are non-negative integers. Polynomial equations can have one or more terms, and can involve addition, subtraction, multiplication, division, and exponentiation.

According to the given question:

The sum of polynomials can be calculated by combining like terms where there are multiple of the same variable.

= (9-3x²) + (-8x²+4x+5)

= 9 - 3x² - 8x² + 4x + 5

= -11x² + 4x + 14

Therefore, the expression which represents the sum of polynomials (9-3x²) and (-8x²+4x+5) is -11x² + 4x + 14

Complete question:

Which expression can be used to find the sum of the polynomials?

(9-3x²) and (-8x²+4x+5)

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The mode for a particular set of observations is 2,3,4,5,6 since it occurs the majority of the time.

The mode formula is described in statistics as the formula for calculating the mode of a given collection of data. The value that occurs most frequently in a particular set is referred to as the mode, and the mode differs across grouped and ungrouped data sets. The mode may be calculated quite easily. Put all of the numbers in a given set in order, either lowest to highest or highest to lowest, and then count how many times each number appears in the set. The mode is the one that appears the most.

Here,

given set of observation:

2 2 2 3 3 3 4 4 4 5 5 5 6 6 6

Mode is the number which occurs the highest time.

So here 2,3,4,5,6 occurs the highest times(3 times).

So,2,3,4,5,6 is the mode.

The mode for given set of observation is 2,3,4,5,6 as it occurs most time.

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So the angle of the resultant vector is approximately 53.13 degrees.

To find the angle of the resultant vector, you can use trigonometry to break the two vectors into their x and y components and then use the arctangent function to find the angle.

First, let's find the x and y components of the first vector (the one that travels 45 meters at an angle of 25 degrees south of east). To do this, we can use the trigonometric functions sine and cosine. The x component is equal to the distance traveled (45 meters) times the cosine of the angle (25 degrees), and the y component is equal to the distance traveled times the sine of the angle.

In this case, the x component of the first vector is 45 meters * cos(25 degrees) = 39.74 meters. The y component of the first vector is 45 meters * sin(25 degrees) = 22.36 meters.

Now let's find the x and y components of the second vector (the one that travels 30 meters north). The x component of this vector is 0 meters (since it doesn't move in the east-west direction), and the y component is 30 meters (since it travels 30 meters in the north direction).

To find the resultant vector, we can add the x components and y components of the two vectors. The x component of the resultant vector is 39.74 meters + 0 meters = 39.74 meters, and the y component of the resultant vector is 22.36 meters + 30 meters = 52.36 meters.

To find the angle of the resultant vector, we can use the arctangent function (also known as the inverse tangent function). The angle is equal to the arctangent of the y component divided by the x component.

In this case, the angle is equal to arctan(52.36 meters / 39.74 meters) = arctan(1.318) = 53.13 degrees.

So the angle of the resultant vector is approximately 53.13 degrees.

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Find the x and y components of the initial vector first (the one that travels 45 meters at an angle of 25 degrees south of east). The trigonometric functions sine and cosine can be used to do this. The y component is equal to the distance traveled times the sine of the angle, and the x component is equal to the distance traveled times the cosine of the angle, or 45 meters times the cosine of the angle, or 25 degrees.

In this case, the x component of the first vector is 45 meters * cos(25 degrees) = 39.74 meters. The y component of the first vector is 45 meters * sin(25 degrees) = 22.36 meters.

The two vectors' x and y components can be added to determine the resultant vector. The resultant vector has two components: an x component of 39.74 meters plus 0 meters equals 39.74 meters, and a y component of 22.36 meters plus 30 meters equals 52.36 meters.

The arctangent function can be used to determine the angle of the resulting vector (also known as the inverse tangent function). The angle is determined by dividing the y component's arctangent by its x component.

In this case, the angle is equal to arctan(52.36 meters / 39.74 meters) = arctan(1.318) = 53.13 degrees.

So the angle of the resultant vector is approximately 53.13 degrees.

No They can not because you need to be at least 62 years old

Answer:

y=1.4x

Step-by-step explanation:

Find the relationship.

1.4/1=1.4

2.8/2=2.8

and so on so we know it is 1.4

so y=1.4x

Answer:

D. Increase in assets

Step-by-step explanation:

The entry "Cash 750,000" is listed as a debit in the T-account because it is an increase in assets. In double-entry bookkeeping, a debit is used to record an increase in assets and a credit is used to record a decrease in assets. In this case, the business received cash in exchange for the airplane, which represents an increase in the business's assets. So the Cash account is debited and the Airplane account is credited.

The numerator for the rational expression is 6

Let us assume the value of numerator to be x

[tex]\frac{2}{f} +\frac{4}{f} = \frac{x}{f}[/tex]

Since these are fractions with same denominators (like fractions),

[tex]= > \frac{2}{f} +\frac{4}{f} \\\\ = \frac{2 +4}{f}\\\\= \frac{6}{f}[/tex]

x = 6

The numerator for the rational expression is 6

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Answer:

Step-by-step explanation: it is b

Answer:

9 :)))))))))))

The system of equations of line parallel to y = -5x + 4 is y = -5x + c where c is any arbitrary value of y-intercept.

The linear equation y = -5x + 4 is a straight line with slope -5 and y-intercept 4.

The slope of parallel lines are equal. So any line with slope -5 is parallel to the line y = -5x + 4. So the equation of a line with slope -5 is

y = -5x + c

where c is a constant

c represent arbitrary value of y-intercept.

For example y = -5x + 2 is a straight line parallel to y = -5x + 4 but having value of y-intercept equal to 2.

--The question is incomplete, answering to the question below--

"What is parallel to y = -5x + 4?"

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The best estimate of your maximum cumulative funding needed, based on the projected revenue and the expenses is $ 4, 000.

The maximum cumulative funding needed would be the amount that would be total gap between revenue and expenses in the three years that the plan will be in effect.

In year 1, the gap is :
= 5, 000 - 9, 000

= $ - 4, 000

In year 2, the gap is:

= 8, 000 - 9, 000

= $ - 1, 000

In year 3, the gap is:
= 10,000 - 9, 000

= $ 1, 000

The cumulative funding needed is :
= ( -4,000 + - 1, 000 ) + 1, 000

= - $4, 000

You have a maximum cumulative funding needed of $ 4, 000.

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When two parallel lines are cut by a transversal, eight angles are formed. Interior angles are supplementary to corresponding exterior angles and the sum of an interior and its corresponding exterior angle is 180 degrees.

Two parallel lines are cut by a transversal, eight angles are formed. Four of these angles are interior angles, which are the angles formed between the two lines and the transversal that lie within the region bounded by the parallel lines. The other four angles are exterior angles, which are the angles formed between the two lines and the transversal that lie outside the region bounded by the parallel lines. Interior angles are equal in measure and are supplementary to the corresponding exterior angles. In other words, the sum of an interior angle and its corresponding exterior angle is equal to 180 degrees. Understanding the properties of interior and exterior angles is important in geometry, as they can be used to prove the parallelism of lines.

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The solution to the system of equations y = -5x + 3 and y = 1 is x = 0.4 and y = 1.      

Therefore, the answer is (0.4, 1).

To solve the system of equations :

y = -5x + 3                                            (1)

y = 1                                                      (2)

In the given equation, coefficient of y is same in both equations. So subtracting equation (2) from equation (1) we get

y - y = -5x + 3 - 1

0 = -5x + 2

Adding 5x on both sides

0 + 5x = -5x + 2 + 5x

5x = 2

Dividing both sides by 5

x = 2/ 5

x = 0.4  

--The question is incomplete, answering to the question below--

"What is the solution to the system of equations?

y = -5x + 3 and y = 1"

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Answer:

Step-by-step explanation:

To model the relationship between Vreel's rews and corazs, we can set up a system of equations in standard form.

The standard form of a linear equation is Ax + By = C, where A, B, and C are constants and x and y are variables.

We know that Vreel purchased a total of 22 rews and corazs, and that the rews cost $8 each and the corazs cost $3 each. We can use this information to set up the following two equations:

The first equation represents the total cost of the rews: 8x + 0y = 96

The second equation represents the total number of rews and corazs that Vreel purchased: 1x + 1y = 22

Together, these two equations form a system of equations that can be used to model the relationship between Vreel's rews and corazs.

I hope this helps! Let me know if you have any other questions.

The solution of the given equation 2x + y = 10 is equal to option b. x = 2 and y = 6.

As given in the question,

Given equation is equal to :

2x + y = 10

Simplify and Check which given option represent the solution of the equation :

a. x = 9

2(9) + y = 10

⇒y = -8

Incorrect option.

b. x = 2

2(2) + y = 10

⇒y = 6

Correct option.

c. x = 1

2(1) + y =10

⇒y = 8

Incorrect option

d. x =4

2(4) + y = 10

⇒y = 2

Incorrect option

Therefore, for the given equation 2x + y = 10 , option b . x = 2 and y = 6 is the correct answer.

The given question is incomplete , the complete question is :

Which of the following is a solution of the equation 2x + y = 10?

a. x = 9 and y = 3

b. x = 2 and y = 6

c. x = 1 and y = 7

d. x = 4 and y = 3

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Therefore  the probability that the chip belongs to bowl c is 1/3.

Probabilities can be expressed as proportions with a 0–1 range or as percentages with a 0%–100% range. If an event has a probability of 1, it is very certain to occur; if it has a probability of 0, it has no chance of occurring. There are 45 chances out of 100 that an event will occur when its probability is 0.45 (45%).

Here,

A : 2 Red chips

B : 2 White chips

C: One Red and one White chip

P(selecting any bowl) = 1/3

1) We have to find P(W).

The selected chip can be white if it is either selected from Bowl B or Bowl C.

Symbolically this can be written as

P(W) = P(Bowl B and White chips) + P(Bowl A and White chips)

P(W) = [(1/3) × 1/1)] + [(1/3) × (1/2)]

P(W) = (1/3) + (1/6)

P(W) = 1/2

P(W) = 0.5

2) There is only one bowl with both of white and red chips and that bowl is bowl C. So it is possible the other chips in the bowl to red only if it has been selected from Bowl C.

So ,We need to find P(Bowl C | W).

P(Bowl C | W) = P(Bowl C and W)/P(W)

P(Bowl C | W) = (1/3) × (1/2)/(1/2)

P(Bowl C | W) = 1/3

Hence, the required probability is 1/3.

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The eccentricity of the conic section below is: A. closer to 0 than 1.

In Euclidean geometry, a conic section can be defined as a curve that is generated as the intersection of the surface of a right circular cone with a plane.

In Mathematics, there are four (4) types of conic section and these include the following with their eccentricity:

In this context, we can reasonably infer and logically deduce that the eccentricity of the conic section is closer to zero (0) than one (1) because it represents a circle.

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Yes, you can claim sickness benefits on universal credit.

Here we have to find out if it is possible to claim the sickness benefit on Universal credit.

In order to find that, we must know the definition of universal credit,

The term universal credit refers to a payment to help with your living costs.

Here we have to know that as per the definition of universal credit here you can self-certify for up to the first 7 days of your claim by notifying Universal Credit that you have a health condition that prevents you from working. Then on the 8th day, your condition persists and if you have not already done so, then you will definitely need to submit medical evidence in order to claim for benefit.

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x^2 + y^2 - 10y + (-85) is equation of the circle with center (0, -5) containing the point (-√109,-6).

To find the equation of a circle with a given center and containing a given point, we can use the distance formula. The distance formula is given by:

d = √((x2 - x1)^2 + (y2 - y1)^2)

where (x1, y1) is the center of the circle and (x2, y2) is the point on the circle. In this case, the center of the circle is (0, -5) and the point on the circle is (-√109, -6). Plugging these values into the distance formula, we get:

d = √((-√109 - 0)^2 + (-6 - (-5))^2)

d = √((-√109)^2 + (-1)^2)

d = √(109 + 1)

d = √110

Since the point (-√109, -6) is on the circle, the distance from the center of the circle to this point is the radius of the circle. Therefore, the radius of the circle is √110.

The equation of a circle with center (h, k) and radius r is given by:

(x - h)^2 + (y - k)^2 = r^2

In this case, the center of the circle is (0, -5) and the radius is √110, so the equation of the circle is:

(x - 0)^2 + (y - (-5))^2 = (√110)^2

x^2 + y^2 - 10y + 25 = 110

x^2 + y^2 - 10y + (-85) = 0

This is the equation of the circle with center (0, -5) and containing the point (-√109, -6).

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