What is the domain of the function expressed by this formula?

Y= 1/x - 7

Answer:

  (x, y, z) = (-4, -5, 2)

Step-by-step explanation:

You want the solution to the 3×3 system of equations ...

There are many tools available for solving a system of equations. A typical hand-held graphing calculator offers at least two methods. An online graphing calculator solution is shown in the attachment.

For the attached solution, we defined z in terms of x and y using the second equation. This effectively reduces the system to a 2×2 system, which is easily solved. The same "substitution" method can be used when solving the system by hand.

The graph shows the solution to be (x, y, z) = (-4, -5, 2).

Using z = -4x -4y -34 from the second equation, the system reduces to ...

  3x -y -4(-4x -4y -34) = -15

  19x +15y = -151

and

  2x +3y +5(-4x -4y -34) = -13

  -18x -17y = 157

Writing these equations in general form, we have ...

The "cross multiplication method" gives the solution for x and y as ...

  D = (19)(17) -(18)(15) = 53

  x = (15(157) -17(151))/D = -212/53 = -4

  y = (151(18) -157(19))/D = -265/53 = -5

Then z is ...

  z = -4(-4) -4(-5) -34 = 16 +20 -34 = 2

The solution is (x, y, z) = (-4, -5, 2).

__

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Answer:five more than y

Step-by-step explanation:

The answer to this question is:

The actual distance between the two towns = 130 km

Given that according to  the map scale,

Distance between two towns = 2.6cm

Given that the scale of map =

                                           1cm = 50km

So, we are asked to find the actual distance between them.

For finding the distance between two towns, we have to multiply the distance from the map by the scale of the map.

Distance between two towns * scale of the map

= 2.6 * 50 km

= 130 km

Therefore, actual distance between the two towns = 130 km

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Answer:

2 groups of 3/8 are in one

Step-by-step explanation:

making up 6/8 because you can add another 3/8 to it.

Answer: v=M^3

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer: 4.631*10^5

Step-by-step explanation:

463,100=

400,000+63,100=

4*100,000+(63,100/100,000)*100,000=

4*10^5+(631/1000)*10^5=

4*10^5+0.631*10^5=

(4+0.631)*10^5=4.631*10^5

The value of exponents when 463,100 is written in scientific notation is 5.

The number system is a way to represent or express numbers.

A decimal number is a very common number that we use frequently.

Since the decimal number system employs ten digits from 0 to 9, it has a base of 10.

Any of the multiple sets of symbols and the guidelines for utilizing them to represent numbers are included in the Number System.

Scientific notation is a way to represent numbers in exponents form of 10

For example 2.245 × 10³

Given that,

Number of books in library = 463,100

Multiply and divide by 10⁵

⇒ 463,100 × 10⁵/10⁵

⇒ 4.63100 × 10⁵

Hence "The value of exponents when 463,100 is written in scientific notation is 5".

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you have to get x and y by themselves on their own sides of the equation. What you do too one side you do to the other.

3x+2y=4

-3x -3x

2y=-3x+4

/2 /2

y= -3/2x+2

the Slope is the value by the x and the y is the one without a variable. sometimes equation do not have a y intercept which means they pass through the origin.

in this equation the slope is -3/2 and the y intercept is (0,2).

Greetings from Brasil...

We know that:

48 = 8 · 6
and 8 - 2 = 6, so

48 = 8 · 6 = 8 · (8 - 2)

then

X · (X - 2) = 48

X · (X - 2) = 8 · 6

We can conclude that

By evaluating the given linear relation, we conclude that the complete table is:

x:  2, 0, 1, 14/3

y: 0, -3, -3/2, 4

Here we have the linear relation:

9x - 6y = 18

And we want to complete the given table, to do so, we just need to evaluate the relation in the given values and with that we can find the missing ones.

For example, the first pair has y = 0.

Evaluating that we get:

9x - 6*0 = 18

9x = 18

x = 18/9 = 2

Then we have the pair (2, 0).

The second has x = 0, replacing that we get:

9*0 - 6*y = 18

y = 18/-6 = -3

So we have the pair (0, -3)

The third has x = 1, replacing that:

9*1 - 6y = 18

-6y = 18 - 9 = 9

y = 9/-6 = -3/2

So we have the pair (1, -3/2)

The last value on the table is y = 4, replacing that:

9x - 6*4 = 18

9x - 24 = 18

9x = 18 + 24 = 42

x = 42/9 = 14/3

Then the complete table is:

x:  2, 0, 1, 14/3

y: 0, -3, -3/2, 4

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Answer:7:15 pm

Step-by-step explanation:

We know he went to bed at 9:00 PM and spent 1 hr and 45 minutes playing games. Start by subtracting one hour away, so we get 8:00 PM. subtract 45 minutes from that and he would have started playing at 7:15 PM.

The number of subsets of A is 16

Given that the numbers in the subset are 1,2,3,4

The number of elements are 4

The number of subsets can be calculated as follows

2⁴

= 16

Hence the number of subsets of A is 16

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Answer:

-6

Step-by-step explanation:

1.2 = 12/10

so

12/10 x (-5) = -60/10 = -6

Answer:

Infinite number of solutions

No unique solution

Step-by-step explanation:

5x - 2y = 10    (1)

y = 5/2x - 5       (2)

Multiply (2) by 2 to get
2y = 5x - 10  

Rewrite the above equation as 5x - 2y = 10 (3)

Since both equations are the same, we are provided with a single equation in 2 variables there are infinite solutions

Required answer:

Detailed explanation:

To find the slope of the line, given that it passes through two points, use the formula:

[tex]\bf{m=\dfrac{y_2-y_1}{x_2-x_1}}[/tex]

Where:

Plug in the data:

[tex]\bf{m=\dfrac{6-6}{3-(-4)}=\dfrac{0}{3+4}=\dfrac{0}{7}=\boxed{\bf{0}}[/tex]

- - - - - - - - - - - - - - - - - - - - - -

Given the pair of points: (-5,8) and (-5,-6), plug them into the slope formula:

[tex]\bf{m=\dfrac{y_2-y_1}{x_2-x_1}}[/tex]

Evaluate:

[tex]\bf{m=\dfrac{-6-8}{-5(-5)}=\dfrac{-14}{-5+5}=\dfrac{-14}{0}=\boxed{\bf{Not\:De fined}}[/tex]

- - - - - - - - - - - - - - - - - - - - - - -

when it tells you what R is then you show a number line with -4 less then R

Answer:

20.75

Step-by-step explanation:

1cm=10mm

so:1mm=0.1cm

0.1/2=0.05

if it asks lower bound:

5.2-0.05=5.15 +

6.3-0.05=6.25 +

9.4-0.05=9.35

The distance between the two points rounding to the nearest tenth is

9.2 units.

Given that the two points are (-1,4) and (8,2).

We are required to find the distance between two given points.

Distance is basically a numerical or occasionally qualitative measurement of how far apart objects or points are.

The points are (-1,4) and (8,2).

The formula to calculate the distance between two points (x,y),(,a,b) is as under:

Distance=[tex]\sqrt{(a-x)^{2} +(b-y)^{2} }[/tex]

Distance=[tex]\sqrt{(8+1)^{2} +(2-4)^{2} }[/tex]

=[tex]\sqrt{(9)^{2} +(-2)^{2} }[/tex]

=[tex]\sqrt{81+4}[/tex]

=[tex]\sqrt{85}[/tex]

=9.2195

After rounding off to nearest tenth we will get 9.2.

Hence the distance between the two points rounding to the nearest tenth is 9.2 units.

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Consider the provided phrase.

Four times the sum of five and a number

Let the number is n and the sum of five and a number can be written as:

[tex]n+5[/tex]

Thus, four times the sum of five and a number can be written as:

[tex]4(n+5)[/tex]

Hence, the required expression is [tex]4(n+5)[/tex].

What is phrase in math?

In mathematics, we may use a phrase to describe an expression. When we describe an expression in words that incorporates a variable, we are doing so by using an algebraic expression. An example of this may be the phrase "greater than" (an expression with a variable).

run the numbers. to conduct a rational analysis of an issue. You can do the math because I was the last person to depart yesterday night and the first person to arrive this morning, and since only the overweight security guy was present. on April 7, 2005, by Dave L. Flag.

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The length expression is 6 + w

The given parameters are:

Length =6 more than the width

Width = w

Perimeter = 60

Subsitute Width = w in Length =6 more than the width

This gives

Length =6 more than the w

More than mean +

So, we have

Length = 6 + w

Hence,  the length expression is 6 + w

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The question you are asking doesn't provide a ton of info on what you are looking for, however:

________________________________________________________

An integer is a number with no fraction part or decimal, and it contains both negative and positive numbers, including the number 0 on a X and Y graph.

________________________________________________________

Hope this kind of helps you to better understand the topic and hopefully get closer to the answer you seek. Good luck!

Answer:

The rightmost figure

Step-by-step explanation:

That is the only figure where there are 4 points of intersection. It is a rhombus inscribed in a square

Answer:

acute

Step-by-step explanation:

acute: degrees are all less than 90*

right angles: have a 90* angle

obtuse angle: has an angle greater than 90*

Answer:

2+[tex]x^{2}[/tex]

Step-by-step explanation:

Converted from word to standard form.

Answer:

230

Step-by-step explanation: