The difference of two rational numbers is an irrational number

Answers

Answer 1

The correct answer is false.

A rational number also includes the sum of two rational numbers.

An integer is the result of two integers.An integer is what separates two other integers.The following is the formula for subtracting two rational numbers:

a/b-c/d=ad-bc/bd

Since a/b and c/d are integers, and we know that a, b, c, and d are all rational numbers. Since ad and bc are both integers under our rule, it follows that ad - bc is also an integer. As a result, our rule states that ad, bc, and bd are all integers. As a result, we know that ad - bc and bd are integers and that the difference between two rational numbers is a number of the type a/b-c/d=ad-bc/bd is the precise definition of a rational number, where ad - bc and bd are integers. Thus, we may conclude that a rational number is the difference between two rational numbers.

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Related Questions

Find the quotient of The quantity 30 times ten raised to the negative twenty fourth power end quantity divided by the quantity 5 times ten raised to the negative twenty fourth power end quantity.. Write the final answer in scientific notation.


6 x 1048

6 x 1024

6 x 100

6 x 10−48

Answers

The quotient of the given problem using laws of exponents is; 6 * 10⁰

How to use the law of exponents?

We want to express the quotient of the quantity 30 times ten raised to the negative twenty fourth power end quantity divided by the quantity 5 times ten raised to the negative twenty fourth power end quantity.

This is;

(30 * 10⁻²⁴)/(5 * 10⁻²⁴)

Now, we can break this down into like terms to get;

(30/5) * (10⁻²⁴/10⁻²⁴)

= 6 * 1

Now, 1 can also be written as;

10⁰ = 1

Thus, the solution of the given problem is; 6 * 10⁰

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Find the equation of the line shown below

Answers

Answer:

Below in bold.

Step-by-step explanation:

The slope = rise / run

= 5/10

= 1/2.

General form of the straight line is

y = mx + c   where m = the slope and C is the y-intercept

Here m = 1/2. and c = 0

So, the answer is y = 1/2 x.

About how many times greater is the number
8.4493E13 than the number 7.994E-2 when
displayed on a calculator?

Answers

The number of times the number 8.4493E13 isgreater than the number 7.994E-2 when displayed on a calculator is 1.05696E15.

How do we use division to get the number times a number is greater than the other?

8.4493E13 = 84,493,000,000,000

7.994E-2 = 0.07994

The number of times the number 8.4493E13 isgreater than the number 7.994E-2 can be obtained by dividing 8.4493E13 by 7.994E-2 as follows:

Number of times greater = 8.4493E13 / 7.994E-2 = 84,493,000,000,000 / 0.07994

Number of times greater = 1,056,955,216,412,310

When displayed on a calculator, we will have:

Number of times greater = 1.05696E15

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reflection across y = x
(2,-2)
(3,-5)
(-2,-4)

Answers

1) (-2,2)

2) (-5,3)

3) (-4,-2)

Please help with all answers on this. And please explain how you got those answers!!! ​

Answers

8) The part shared by vector BC and vector CB is called the magnitude of the line segment.

9) (a) Another name for ∠C is ∠ACB.

(b) ∠ADF and ∠BDC are two angles with point D as the vertex.

(c) Another name for ∠1 is ∠FBD.

(d) Another name for ∠2 is ∠FDB.

8) There are two vectors : vector BC and vector CB.Both the vectors have the same magnitude, i.e., length, but opposite directions to each other.Hence, the vector BC and vector CB have a common magnitude, which is equal to the length of the line segment joining the points B and C.9) According to the given figure,a) The angle ∠C is formed using line segments CA and CB. So, another name for ∠C is ∠ACB.b) ∠ADF and ∠BDC are two angles with point D as the vertex.c) The angle ∠1 is formed using line segments BF and BD. So, another name for ∠1 is ∠FBD.d) The angle ∠2 is formed using line segments DF and DB. So, another name for ∠2 is ∠FDB.

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a rectangle has a width w and a length that is two more than its width. what is the perimeter of the rectangle? write and simplify an expression. a general expression for the perimeter is (select) . the simplified expression i

Answers

The perimeter of the rectangle is 4 + 4w, where w is the width of the rectangle.

In this question,

a rectangle has a width w

Let l be the length of the rectangle.

A  length that is two more than its width.

⇒ l = 2 + w

We know that the perimeter of the rectangle is P = 2 × (length + width)

So, for the length l = 2 + w and width w, the perimeter of the rectangle would be,

P = 2 × (w + (2 + w))

We simplify above expression.

P = 2 × (2 + 2w)

P = 4 + 4w

Therefore, the perimeter of the rectangle is 4 + 4w, where w is the width of the rectangle.

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Olivia purchases gifts for her mom and grandma for Mother’s Day the first pair as a pair of sunglasses for $16.35 and the second is a bracelet your total is 39 and $.75 how much did she spend on the bracelet

Answers

Olivia purchases gifts for her mom and grandma for Mother's Day. The  linear equations in first is a pair of sunglasses for $16.35 and the second is a bracelet. Her total spend $39.75.

She spend $23.4 on the bracelet.

Given that

Olivia purchases gifts for her mom and grandma for Mother’s Day.The  linear equations first is a pair of sunglasses for $16.35 and the second is a bracelet.She used total $39.75 for gifts.

o find

How much did she spend on the bracelet?

So, according to the question

We have

Total amount spend by her = $39.75.The amount of the pair of sunglasses = $16.35.

So, we can say that

The amount of bracelet = Total amount spend by her - The amount of the pair of sunglasses

Now, putting the all given values,

So, we get

                                             = $(39.75 - 16.35)

    The amount of bracelet = $ 23.4        

                                 

She spend $ 23.4 on bracelet for Mother’s Day.

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4(8)÷2(3)-10
explain please

Answers

Answer: 38

Step-by-step explanation:

4*8 =32

32/2=16

16*3=48

48-10=38

what number is equal to 4 hundreds 3 tens 7 ones and 19 thousandths

Answers

Answer:437.019

Step-by-step explanation:

If you add together

4 hundreds-400

3 tens-30

7 ones-7

19 thousandths-0.019

It equals 437.019

a concert manager counted 650 ticket receipts the day after a concert. the price for a student ticket was $11.50, and the price for an adult ticket was $13.00. the register confirms that $8,112.50 was taken in. how many student tickets and adult tickets were sold?

Answers

Based on the calculations, the number of student tickets and adult tickets that were sold are 225 tickets and 425 tickets respectively.

Given the following data:

Total ticket receipts = 650 tickets.

The price for a student ticket = $11.50.

The price for an adult ticket = $13.00.

Total revenue = $8,112.50.

Let T represent the total ticket.Let S represent price for a student ticket.Let A represent price for an adult ticket.Let R represent the total revenue.

What is an expression?

An expression can be defined as a mathematical equation which is used to show the relationship existing between two or more variables and numerical quantities.

How many student tickets and adult tickets were sold?

In order to determine the number of student tickets and adult tickets that were sold, we would translate the word problem into an algebraic expression as follows:

A + S = 650                              ......equation 1.

11.5S + 13A = 8,112.50              ......equation 2.

From eqn. 1, we have:

S = 650 - A                          ......equation 3.

Substituting eqn. 3 into eqn. 2, we have:

11.5(650 - A) + 13A = 8,112.50

7,475 - 11.5 A + 13A = 8,112.50

1.5A = 8,112.50 - 7,475

1.5A = 637.5

A = 637.5/1.5

A = 425 tickets.

For the student tickets, we have:

S = 650 - A

S = 650 - 425

S = 225 tickets.

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Solve inequality.
-b/5 ≥ -6

Answers

To solve the inequality, multiply both sides by (-5). The solution is b  ≤ 30 or (∞, 30]

Tips to solve linear inequalities:

Isolate the variable on one side by using subtraction or addition. Subtraction and addition will not change the inequality.Use division or multiplication to find the solution. Multiplication and division by a positive number will not the inequality. However, if we multiply or divide both sides with a negative number, we need to flip the inequality direction.

Interval notation is often used for the solution(s). Recall the differences between a bracket [ or ], and a parenthesis (  or ). A bracket means the endpoint is included in the solution while a parenthesis means the endpoint is not included in the solution. Remember, infinity ∞ always use a parenthesis.

Example:  x ≥ 2 can be written as [2, ∞), while

                x > 0 is written as (2, ∞)

The given problem:

-b/5 ≥ -6

Notice that the variable, b, is already isolated on the left side. Multiply both sides by (-5) and flip the sign of the inequality ( since we multiply it by a negative number):

-b/5 . (-5) ≤ -6 . (-5)

b  ≤ 30

Using the interval notation, the solution is (∞, 30]

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Solve the equation. − 3 ( 3 − 4 x ) = 5 ( x − 1 ) + 7 ( x + 2 ) Show each step you used to solve the equation. Determine whether the equation has one solution, no solution, or infinitely many solutions. Explain your reasoning.

Answers

Answer:

0=18

Step-by-step explanation:

-3(3 - 4x) = 5(x - 1) + 7(x + 2)

-3( -4x + 3) = 5(x - 1) + 7(x + 2)

Simplify 4G+ 16H - 8J = 32.
Select one:

O a. G + 4H-2J = 8
O b. G + 4H-2J = 32
O c.
2G+8H4J = 16
O d.
4G+ 2H-J = 4
O e. 12(G+ H-J) = 32

Answers

A you can divide all terms by 4

Find the perimeter and area of the figure if each unit on the graph measures 1 centimeter. Round answers to the nearest tenth, if necessary.
Perimeter:
Área:

Answers

The area and Perimeter of (ΔABC) are respectively; 17.5 square units and 24.16 units

What is the area and Perimeter of the Triangle?

The formula for the area of a triangle ABC with 3 coordinates is;

Area (ΔABC) = (¹/₂) |x₁(y₂ − y₃) + x₂(y₃ − y₁) + x₃(y₁ − y₂)|

The coordinates are;

(x₁, y₁) = (-6, 6)

(x₂, y₂) = (2, 3)

(x₃, y₃) = (-3, -2)

Thus;

Area (ΔABC) = (¹/₂) |-6(3 − (-2)) + 2(-2 − 6) + -3(3 − 6)|

Area (ΔABC) = (¹/₂)|-30 - 16 + 9|

Area (ΔABC) = ¹/₂ * |-35|

We are taking absolute value and so;

Area (ΔABC) = ¹/₂ * 35

Area (ΔABC) = 17.5 square units

To get the perimeter, we will use distance formula between two coordinates and we have;

AB = 8.544

BC = 7.071

AC = 8.544

Thus;

Perimeter = 2(8.544) + 7.071

Perimeter = 24.16 units

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Find the axis of symmetry of y=x^2

Answers

Answer:

Step-by-step explanation:

x^2 cannot be negative so the minimum value of x^2 is at (0.0)

When x = -1 y = 1 and when x = 1 y = 1

- and so on for all values of x

SO, y = x^2 is symmetrical about the y axis.

and the axis of symmetry is the y axis or we can write it as the line x = 0.

The graph of y = |x +4|-8 is reflected across the y-axis and then translated down 2 units. What is an equation of the transformed graph?
O A. y = -|x +4|-10
O B. y= |4 - x|-6
O C. y = -|x + 4|-6
D. y= |4 - x|-10

Answers

The equation of resulting graph upon undergoing the transformations as described in the task content is; Choice B; y= |4 - x|-6.

What is the equation of the resulting graph formed from the transformations as described in the task content?

It follows from the task content that the equation of the transformed graph be determined.

First, since the graph is reflected over the y-axis, the x-value becomes negative as; -x.

Hence, the resulting equation is;

y = |-x + 4|-8

y = |4 -x|-8

Also, when the graph is translated 2 units down; we have;

y -2 = |4 -x|-8

y = |4 -x|-8 +2

y = |4 -x| -6

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Can someone help??????

Answers

Answer:

rotate 180

Step-by-step explanation:

because you can try it urself

Brandon wants to ride his bicycle 21 miles this week. He has already ridden 6 miles. If he rides for 5 more days, write and solve an equation which can be used to determine xx, the average number of miles he would have to ride each day to meet his goal.

Equation: 5x+6=21

Solve: 5x+6=21
-6= -6
5x=15
5x/5 = 15/5
x =3
Answer: x = 3

Answers

Using proportions, it is found that he would have to ride his bike 3 miles a day to meet his goal.

What is a proportion?

A proportion is a fraction of a total amount, and the measures are related using a rule of three. Due to this, relations between variables, either direct(when both increase or both decrease) or inverse proportional(when one increases and the other decreases, or vice versa), can be built to find the desired measures in the problem, or equations to find these measures.

He has already ridden the bike for 6 miles, and needs to run 21 - 6 = 15 miles in 5 days, hence the average is given by:

x = 15/5 = 3 miles a day.

He would have to ride his bike 3 miles a day to meet his goal.

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Find the distance between the two points (9,1), (-8,7)

Answers

Step-by-step explanation:

use distance formula for answer

Complex numbers
I need help!

Answers

Answer:

1. i

2. -1

Step-by-step explanation:

The data set represents the number of students per faculty member for 20 public colleges 13 15 15 8 16 20 28 19 18 15 21 23 30 17 10 16 15 16 20 15. Use five classes.

Answers

The median and mode of the data set is

median =16mode =15

This is further explained below.

What are the median and mode?

Generally, median = value of [tex]$\left(\frac{n+1}{2}\right)^{\text {th }}$[/tex] the position

- the value of [tex]$\left(\frac{20+1}{2}\right)^{\text {th }}$[/tex] the position

= value of the position

= value of [tex]$10^{\text {th }}$[/tex] position +0.5 (value of 10^th  position - value of 9th position)

Arranging the data below.

8,10,13,15,15,15,15,15,16,16,16$, $17,18,19,20,20,21,29,28,30

median =16+0.5(16-16)

median =16

mode = { value of maximum frequency }

mode =15

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The data set represents the number of students per faculty member for 20 public colleges 13 15 15 8 16 20 28 19 18 15 21 23 30 17 10 16 15 16 2[tex]$(10.5)^{\text {th }}$[/tex]0 15. Use five classes.

What is the median and mode of the data

8 divided by $3.09 round to the nearest cent

Answers

Answer: $0.39

Step-by-step explanation:

3.09/8=

0.38625=

0.38625=$0.39

2 1/5 divided by 5/7

Answers

Answer: 3.08

Step-by-step explanation: hope this helps!!!!

Answer:

3.08 or 77/25

Step-by-step explanation:

I find answering this problem easiest if you use paper and Thats what I used

2 1/5/ 5/7 = 77/25= 3 2/25= 3.08

Spelled result in words is seventy-seven twenty-fifths (or three and two twenty-fifths).

In the figure below, m Z1=(x+88)° and m2=3x°.
Find the angle measures.
J
1
2
m21=
m42=

Answers

Answer:

m<1 = 111 degrees, m<2 = 69 degrees

Step-by-step explanation:

The measure of angles 1 and 2 are supplementary, (two angles adding up to 180 degrees). Using this, set up the equation:

x + 88 + 3x = 180  

4x = 108

x=23 degrees

Next, substitute 23 into the given angles:

m<1 = (23 + 88) = 111 degrees

m<2 = 23 * 3 = 69 degrees

Thus, m<1 = 111 degrees, m<2 = 69 degrees. Hope this helps

Here are two box plots:
95
95
100
100
105
box plot A
105
box plot B
110
110
115
115
1. Which box plot has a greater median? v
2. Which box plot has a greater measure of variability

Answers

Answer:

Box plot B

Step-by-step explanation:

Hope this helps

You are solving a measurement problem where the numbers 4.514 x 10^−3, 3.09 x 10^7, and 2.80 x 10^3 are multiplied. How many significant digits should the product have?

Answers

The significant digits from the product of the values are 7

What are significant digits?

It is important to note the following;

Non-zero digits are always significantZeros between two significant digits are also significant

Given the values;

4.514 x 10^−33.09 x 10^72.80 x 10^3

Let's find the product

4.514 x 10^−3 × 3.09 x 10^7 × 2.80 x 10^3

39. 055128 × 10^-3 + 7 + 3

39. 055128  × 10^7

The significant digits are 7

Thus, the significant digits from the product of the values are 7

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An angle and a ray are drawn on a piece of paper, what is the maximum number of
points at which the two figures could intersect?
A. 0
B. 1
C. 2
D. 3
E. infinitely many

Answers

b, because since it’s a ray, there has to be a point on the angle where it intersects so i can only intersect once
B is going to be your answer

Which axis is triangle ABC reflected across?

Answers

Triangle ABC is reflected across the y-axis. The two congruent triangles are mirrored across the y-axis, thus they are reflected.

Question 6: Give the translation rule, any coordinate point will shift 4 units to the left and rise up 8 units.

Triangle ABC is reflected across the y-axis. The two congruent triangles are mirrored across the y-axis, thus they are reflected.

6: Give the translation rule, any coordinate point will shift 4 units to the left and rise up 8 units.

What is the  translation rule

The translation rule describes how each coordinate point of the original triangle ABC moves to form the reflected triangle after the reflection across the y-axis.

To reflect a triangle across the y-axis, all you need to do is change the sign of the x-coordinate while keeping  the y-coordinate the same. Using this rule, every point on the original triangle ABC will move 4 units to the left and go up 8 units to create the reflected triangle A'B'C' after the reflection.

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Find the area of a triangle with a base
of 10m and a height of 12m.
Area: 1/2(bxh)

Answers

Answer: 60m

Step-by-step explanation: The formula is 1/2(bxh)

the base is 10m and the height is 12m.

1/2(10 x 12) =

1/2(120) = 60

what is the slope intercept form of y=-3x+1

Answers

Answer:that is the slope intercept form

Step-by-step explanation: slope intercept form is y=mx+b

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