I need a step-by-step process on how to do:

-3x+y=9
y=x-7

I would think this is a substitution problem.

Answer:

No.

Step-by-step explanation:

Don't worry. Yes, your grade will decrease but won't go to 0.

Answer: It all depends on how weighted your final exam is on your overall grade compared to other assignments.

Answer:

The answer is x= -2/3

Step-by-step explanation:

The value of x in the linear inequality -3(2x - 5) < 5(2 - x)  is x > 5 which shows an open circle is at 5 and a bold line starts at 5 and is pointing to the right.

A system of linear inequalities in two variables includes at least two linear inequalities in the identical variables. When we solve linear inequality then we get an ordered pair. So basically, in a system, the solution to all inequalities and the graph of the linear inequality is the graph displaying all solutions of the system.

In the given inequality, we have -3(2x - 5) < 5(2 - x)

We can expand the graph and simplify

-3(2x - 5) < 5(2 - x)

-6x + 15 < 10 - 5x

15 - 10 < -5x  + 6x

5 < x

x > 5

This indicates that an open circle is at 5 and a bold line starts at 5 and is pointing to the right.

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The ascending order of the given numbers will be 0.4, 0.43, 0.52 and 0.81 and the final number after performing all the indicated operations is 260.

According to the question,

We have the following information:

0.4, 0.52, 0.81 and 0.43

Now, we know that in ascending order we order from the smallest to the largest.

Ascending order of the given numbers:

0.4, 0.43, 0.52 and 0.81

Now, the first number is 0.4.

Adding 2 to this number:

0.4+2

2.4

Subtracting the number from 5:

5-2.4

2.6

Now, multiplying it by 100:

2.6*100

260

Hence, the ascending order of the given numbers will be 0.4, 0.43, 0.52 and 0.81 and the final number after performing all the indicated operations is 260.

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Answer: 3√14 units

Step-by-step explanation:

Let the length of the other leg equal to x

Hence, according to Pythagoras' theorem

[tex]x^2+(9\sqrt{2} )^2=(12\sqrt{2})^2 \\\\x^2+9^2(\sqrt{2)^2}=12^2(\sqrt{2})^2\\\\x^2+81(2)=144(2)\\\\x^2+162=288\\\\x^2+162-162=288-162\\\\x^2=126[/tex]

Extract the square root of both parts of the equation:

[tex]x=\sqrt{126} \\\\x=\sqrt{9(14)} \\\\x=3\sqrt{14}\ units[/tex]

The image of the point (-4, -1) after a rotation of 270 counterclockwise about the origin will be (-4, 1).

A spatial transformation is each mapping of feature space to itself and it maintains some spatial correlation between figures.

The point (- 4, -1) is in the fourth quadrant. After a rotation of 270 counterclockwise about the origin, then the coordinate would be in the third quadrant.  

Let the coordinate of (-x, -y) be the fourth quadrant. Then the coordinate in the third quadrant will be (-y, -x)

Therefore, The image of the point (-4, -1) after a rotation of 270 counterclockwise about the origin will be (-4, 1).

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Answer: $4

Step-by-step explanation:

75% = 3/4

If 4/4 = full price,

subtract 3/4

4/4 - 3/4 = 1/4 = 25% of the original price

25% = $1

75% = $3

$1 + $3 = $4

By applying the exterior angle of a triangle theorem, m<WUV = 19°

What is an exterior angle of a triangle?

The angle created by one side of a triangle and the subsequently extended side is known as the external angle of a triangle. A triangle has three exterior angles, and the sum of those three external angles is always 360 degrees.

Here, we have

The given parameters are;

ΔUVW with side UW extended to X

m∠UVW = (x + 19)°

m∠VWX = (5x +14)°

m∠WUV = (x + 13)°

Applying the exterior angle of a triangle theorem:

m∠WUV + m∠UVW = m∠VWX

(x + 13)° + (x + 19)° = (5x +14)°

2x + 32 = 5x + 14

32 - 14 = 5x - 2x

18 = 3x

x = 6°

Now, we put the value of x in m∠WUV = (x + 13)° and we get

m∠WUV = (6+13)°

m∠WUV = 19°

Hence, by applying the exterior angle of a triangle theorem, m<WUV = 19°

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Answer: 2.73 is the answer

Step-by-step explanation:

Answer:

[tex]log_{9} 59,049=5[/tex]

Step-by-step explanation:

The equation in logarithmic form is ㏒₉59,049 = 5

An equation is a mathematical statement with an 'equal to' symbol between two expressions that have equal values.

For example, 3x + 5 = 15.

Given is an equation, 9⁵ = 59,049, we need to convert it into logarithmic form.

So,

y = aˣ, then x = ㏒ₐY

Applying the same,

9⁵ = 59,049

㏒₉59,049 = 5

Hence, the equation in logarithmic form is ㏒₉59,049 = 5

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The required expression is 2x + 5 that equivalent to the expression, 3 + 2x − 9 − 4x + 11 + 5x − x.

The expressions that have identical values are called to be equivalent expressions.

The expression is given in the question following as:

⇒ 3 + 2x − 9 − 4x + 11 + 5x − x

We have to determine the equivalent expression to the given expression

As per the question, we have

⇒ 3 + 2x − 9 − 4x + 11 + 5x − x

Combine the like terms together in the above expression,

⇒ 2x - 4x + 5x - x + 3 - 9 + 11

⇒ 2x  + 5

Thus, the required expression is 2x + 5 that equivalent to the expression, 3 + 2x − 9 − 4x + 11 + 5x − x.

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If m is the centroid of triangle abc, am = 44, ce =54, and dm = 23, then each missing measure fm=88 and ce=44.

The center of the thing is represented by its centroid. The centroid of a triangle is the location where the triangle's three medians intersect. It can alternatively be described as the location where the three medians come together. A line connecting a side's midpoint and the triangle's opposite vertex is called the median.

Step 1: Identify each vertex's coordinates.

Step 2: Add together and divide by three all the x values from the coordinates of the three vertices.

Step 3: Add together all the y values from the three vertices and divide the result by three.

Step 4: The centroid coordinate is determined from the values collected in stages 2 and 3.

the ratio of both segments is 2:1.

where;

am = 44 and dm = 23

the longer segment is double of shorter one:

2*23 = 46.

Therefore,

fm = 46-23

= <<23=23>>23

now finding ce:

= 2*44

= 88, so

ce measures

= 88-44

=44.

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Cuties and naval oranges are interchangeable, therefore when Cuties' price drops, more mandarin oranges will be consumed by consumers, increasing the demand for naval oranges .

As the Mandarin oranges are an alternative for navel oranges, a decrease in the price of Mandarin oranges will result in more people purchasing Mandarin oranges.

The Federal Water Pollution Control Act Amendments of 1972 were passed in response to growing public knowledge of and concern over water pollution (33 U.S.C. 1251 et seq.).

This law was modified in 1977 (P.L. 95-217), and as a result, it became known as the Clean Water Act (CWA).

Given constant levels of the other determinants—tastes, income, prices of related goods, expectations, and the number of buyers—the demand curve is defined as the relationship between the price of the good and the amount or quantity the consumer is willing and able to purchase in a given time period.

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Based on the residual plot, is a linear model is not appropriate for summarizing this relationship. Therefore, the correct answer option is: C. A linear model is not appropriate because the residual plot shows a clear pattern.

In Mathematics, a residual plot is sometimes referred to as scatter plot and it can be defined as a type of graph which is used for the graphical representation of the values of two (2) variables, with the resulting points showing any association or correlation (relationship) between the data set.

Mathematically, a linear model can be represented by this mathematical expression; y = mx + b.

Where:

By critically observing the residual plot (scatter plot) which shows a relationship between the residuals and quarters since January 2011, we can reasonably infer and logically deduce that a linear model is not appropriate because there is a clear pattern between the data points.

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A = -x² + 20 is a quadratic function in standard form that depicts each area as a function of width.

A quadratic in mathematics is a particular kind of problem that involves squaring, or multiplying a variable by itself. This terminology comes from the fact that a square's area equals the product of its side length and itself. Quadratum, the Greek word meaning square, is where the word "quadratic" originates.

Now, give the x and y labels to the two sides.

We are aware that a rectangle's area is;

A = length * width

Thus;

A = xy

Given that she has 40 feet of fencing, the following follows:

y = 0.5(40) - x

y = 20 - x

Consequently, the area in the quadratic function formula is;

A = x(20 - x)

A = 20x - x²

A = -x² + 20

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Answer:

For every 3 tablespoons of cocoa, Nate uses 1 tablespoon of sugar.

Step-by-step explanation:

Since the sugar is halved, the cocoa should be halved as well. 6/2 is 3.

Hello,

I hope you and your family are doing well!

To find the total area of all four walls of the room, you need to find the area of each wall separately and then add them all together. The area of a wall is the product of its height and width.

The width of each wall is 50 meters, and the height of each wall is 10 meters, so the area of each wall is 50 * 10 = 500 square meters. There are four walls in the room, so the total area of all four walls is 500 * 4 = 2000 square meters.

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Happy Holidays!

Answer: 2200

Step-by-step explanation: I looked it up

As an object's mass and the energy difference between it and the barrier's energy increase, the probability that it will tunnel through the barrier diminishes.

And although while the functionality shows that the wave function never fully hits zero, this explains why tunneling is common at the nanoscale but insignificant at the larger scale. The probability of tunneling declines exponentially with the square root of the mass of the particle (smaller particles may more easily tunnel through barriers than larger ones) and the barrier thickness.

Three requirements must be satisfied for a quantum particle to appreciably tunnel through a barrier ,

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Answer: The expression you provided is a quadratic function in the form of H(x) = ax^2 + bx + c, where a = -7, b = 10, and c = -5. The graph of this function is a parabola with the vertex located at x = -b/2a = -10/(-14) = 5/7. The y-coordinate of the vertex can be found by plugging the x-coordinate into the original function, giving us H(5/7) = (-7)(5/7)^2 + 10(5/7) - 5 = -5/7 + 25/7 - 5 = 0. This means that the vertex of the parabola is located at the point (5/7, 0). The general form of the quadratic function is H(x) = -7(x - 5/7)^2.

In linear equation, Clark rode 2 kilometres more than Denise .

What in mathematics is a linear equation?

A linear equation is a first-order (linear) term plus a constant in the algebraic form y=mx+b, where m is the slope and b is the y-intercept. Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables.

                       Equations whose variables have a power of one are called linear equations. One example with only one variable is where ax+b = 0, where a and b are real values and x is the variable.

Denise rode 3 kilometres .

Clark rode 5000 metres which is 5 kilometres .

So , Clark rode 2 kilometres more than Denise .

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Step-by-step explanation:

The diagram is very helpful, so really go off of that. Coordinates are written in the form (x,y). If you look at the signs (either there's a negative sign, - , or no sign at all, meaning it's +) for each number in a coordinate pair, you can see where each coordinate should go.

If you look at the last example (3, -3), the first digit is positive + and the second digit is negative - . When you look at the diagram, coordinates in the form of (+, -) are put in quadrant 4.

The equation of a line perpendicular to y 7 = - 4/3x that pass through the point (-8, -1) is 3x-4y=20 where x-intercept is 3 and y-intercept is -4.

A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. The variables in the preceding equation are y and x, and it is occasionally referred to as a "linear equation of two variables.

The formula for a straight line is y=mx+c where c is the height at which the line intersects the y-axis, often known as the y-intercept, and m is the gradient.

Given line ;

y 7 = - 4/3x

now comparing it with y=mx+c to find the value of m and we found;

m1=-4/3

now if two lines are perpendicular then,

m1.m2=-1

m2=3/4

now finding the equation of line passing through the point (-8, -1)

x1=-8

y1=-1

(y−y1)=m(x−x1)

Y+1=(3/4)(x+8)

Y+1=(3x/4)+(24/4)

Y=(3x/4)+(6)-1

Y=(3x+20)/4

4y=3x+20

rearrange;

3x-4y=20

this is our required value.

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The dividend yield per stock share per year is 9.88 %

What Is the Dividend Yield?

The dividend yield, expressed as a percentage, is a financial ratio (dividend/price) that shows how much a company pays out in dividends each year relative to its stock price.

Given,

The stock price per share is = $85

Quarterly dividend is = $2.10

Now, for to find Dividend yield

Dividend Yield = Annual Dividends Per Share / Price per share

Annual Dividends Per Share = 4 * $2. 10

                                                = $8.4

Price per share = $85

Now, plug in the values

Dividend Yield = 8.4 / 85

                         = 0.0988

Now, in percentage is

Dividend Yield = 0.0988 * 100

                          = 9.88 %

Hence, the dividend yield per stock share per year is 9.88 %

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a) Using a system of equations, the amount invested in the mutual fund that earned 6% was $1,600.

b) The amount invested in the mutual fund that earned 4% was $200.

A system of equations is two or more equations solved concurrently.

A system of equations is also called simultaneous equations.

Total investment = $1,800

Profit from investment A = 6%

Profit from investment B = 4%

The total investment profit = $76

Let A = Investment A and B = Investment B

A + B = 1,800

A = 1,800 - B

0.06A + 0.04B = 76

0.06(1,800 - B) + 0.04B = 76

108 - 0.06B + 0.04B = 76

108 - 0.02B = 76

-0.02B = -32

B = 1,600

A = 200 (1,800 - 1,600)

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Practicing mathematics will bring Peace and Harmony in your life It provides us with a method for comprehending patterns, quantifying relationships, and making future predictions.

In the absence of animosity and violence, peace is the idea of communal friendship and harmony.

Critical thinking about our surroundings is referred to as analytical thinking. Our capacity for reasoning is what allows us to approach problems logically. The ability to think critically and rationally is crucial since it aids in issue solving and solution seeking.

Understanding the world through mathematics also helps us develop mental discipline. Math fosters logical reasoning, critical analysis, inventiveness, abstract or spatial thinking, problem-solving aptitude, and even good communication abilities.

Therefore, It gives us a way of understanding patterns, measuring relationships, and forecasting the future.

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Answer:

a - April

b - may

c - they neither made nor lost money that month

hope that helps :)

Step-by-step explanation:

Answer: a) - March

              b) - May

              c)- it neither made nor lost money that month

Step-by-step explanation:

a) - because -386 is the least out of all of them

b) - because 271 was the most out of all of them

c) - it didn't lose or make it just stayed the same as it was

Answer: n= 1

Step-by-step explanation:

8n+7=-4n+19

First, subtract 7 from both sides

8n = 4n +12

Then add 4n from both sides

12n = 12

Then divide by 12 from both sides

n= 1

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Answer: n = 1

Step-by-step explanation:

First, you could start off by bringing the -4n to the left side:

8n + 7 = -4n+19  →  12n + 7 = 19

Next, you take the 7 on the left side of the equals sign and subtract it from the 19:

12n + 7 = 19 → 12n = 12

Finally, you divide the 12 on the right by the 12 on the left:

12n = 12  →  n = 12/12

A number over itself will always be 1, so n = 1.

When reflected across a line of symmetry, a shape having that line of symmetry will fall on itself. These are the actual claims:

(1) The rectangle's diagonals will line up exactly with one another.

(2) A rectangle's diagonals are symmetry lines.

We deduce from the question that the rectangle is mirrored across the symmetry line.

When done, the rectangle's half will fall directly on the other half.

This indicates that the rectangle's diagonal will line up perfectly with the opposite diagonal.

According to the aforementioned claim, a rectangle's diagonal is also its line of symmetry.

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