Is the following number irrational?
-8.7


Is The Following Number Irrational?-8.7

Answers

Answer 1

Answer:

No.

Step-by-step explanation:

Rational numbers are any of the following:

Integers (positive whole numbers, negative whole numbers, or zero).Fractions e.g. 3/4Terminating (with an end) or repeating decimals e.g. 0.2 or 0.333333... or 0.343434...

Irrational numbers are thus defined as:

Non-terminating (unending), non-repeating decimal numbers. e.g. π, surds ( [tex]\sqrt{2}[/tex] ).

This means that -8.7 is not irrational, as it is not an unending, non-repeating number: an easy way to remember how to answer this is to look at whether the number has been expressed in decimal form if it has (unless you have been told that it has been rounded) it must be rational, as it can be written as a decimal number.


Related Questions

What is the y-intercept of the line graphed on the grid?

Answers

Answer:

it is -4 because it is where the line touches the graph

Answer:

Looks like it could be -3.5

Step-by-step explanation:

The y-intercept is the point where the line crosses the y-axis.

Equivalent fraction with a denominator of 10, 100, or 1000 and a decimal with 1/2


Answers

Answer:

5/10

50/100

500/1000

Step-by-step explanation:

5/10 is equal to 1/2

50/100 is equal to 1/2

500/1000 is equal to 1/2

do any of y’all know how to do number 7?

Answers

Answer:

f(-3) = 2

f(-1) = 2

f(8) = 1

Step-by-step explanation:

Yep! For any function f(x), you find the y value corresponding the x value. For example, in this question, it asks us to find f(-3). Therefore, you go to the line, x = -3, and see where it intersect the function (the y value). Your answer would be the y value.

The value corresponding to f(-3) seems to be 2.

The value corresponding to f(-1) seems to be -2.

The value corresponding to f(8) seems to be 1.

HELP PLS ITS BEEEN AN HOUR im going to cry ):

Answers

Answer: Don't cry please you'll be okay.

Step-by-step explanation:

is kurapika kurta hot

Answers

Answer:

really hot❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤

Answer:

YES yes YES!!!

Step-by-step explanation:

convert the rate of $480/day to the equialent rate in dollars/hour.

Answers

Answer:

It would be $20 per each hour

Step-by-step explanation:

Divide  480  by  24 .

Answer:

$20/ hour

Step-by-step explanation:

24 hours in a day

Divide $480/ 25

ASAP MULTIPLE CHOICE WILL MARK BRAINLIEST
Write a conditional for the Venn Diagram.

the figure is a rhombus
the figure is a square
If
then
the figure is not a rhombus
the figure is not a square

Answers

Answer:

If the figure is a rhombus then the figure is not a square

Step-by-step explanation:

Hope this helped, Have an amazing day!

if the figure is a rhombus the figure is a square


i need help with this please help asap

Answers

Step-by-step explanation:

4^5 (-2)^9/4^8 (-2)^3

= 4^(5 - 8) (-2^(9 - 3))

= 4^-3 (-2^6)

= (-2)^6/4^3

1). (-2)^a/4^b

a = 6, b = 3

2). c/d

c = -2, d = 4

help please!! thanks :)

Answers

Answer:

I think it's B not sure though.

Help ASAP!!!!!!!!!!!!!!

Answers

Answer:

cause 2+2≠⁴

Step-by-step explanation:

10¥6

8910111213

aans =t-5

write the segment addition posutlate for the poins described

Answers

Answer:

Segment Addition Postulate:  2 points A and C, a third point B lies on the line segment AC if and only if the distances between the points satisfy the equation AB + BC = AC.

Step-by-step explanation:

Answer: Segment Addition Postulate: 2 points A and C, a third point B lies on the line segment AC if and only if the distances between the points satisfy the equation AB + BC = AC.

hope this helped you kiddo.

Step-by-step explanation:

Pablo bought 5 CDs that were each the same price. Including sales tax, he paid a total of $74.50. Each CD had a tax of $0.80. What was the price of each CD before tax?

Answers

Answer:

Step-by-step explanation:

74.50=5x+5(.80)

74.5=5x+4

-4          -4

70.5=5x

5        5

$14.10=x

Your purchase at the grocery store is $42 and there is an 8% sales tax. What is
the amount of tax
you
will pay?

Answers

$45.36 you will pay
Put 42 in ur calculator and then add 8% and then press enter u will get 45.36

Or other way to do it 8% basically mean 8 divided by 100 calculate it u will get 0.08 multiply this number by 42 u will get 3.36 this is how much tax u should pay so add it to the price without tax 42+3.36= 45.36.

Austin is planning a canoe trip with his dad and brother. They are taking a cooler and a few supplies that weigh a total of 89 pounds with them. The canoe has a maximum weight limit of 765 pounds. Which inequality can be used to find p, the average allowable weight in pounds for each person in the canoe? 3p − 89 ≥ 765 ⊝ 3p − 89 ≤ 765 ⊝ 3p + 89 ≥ 765 ⊝ 3p + 89 ≤ 765 ⊝ CLEAR ALL

Answers

Answer:

C

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

i did the test and got it right

3p + 89 ≤ 765

Evaluate the expression if a = -3, b = 64, c = 4, and d = 36.
4a? + 2c

Answers

Answer:

-4

Step-by-step explanation:

4(-3)+2(4)=-4

Ram’s father is 38 years old. His age is three more than five times the age
of Ram. What is Ram’s age?​

Answers

Answer:

7

Step-by-step explanation:

7 times 5 =35

35+3=38

correct answer is 7 years old

Answer:

Ram is 7

Step-by-step explanation:

38-3

=35 divided by 5

=7

In a sale a clothes shop reduces its price by 35% a shirt usually costs $36 how much after the sale?

Answers

Answer:

$23.40

Step-by-step explanation:

[tex]36(1 - .35) = 23.40[/tex]

The answer is $23.40

a turtle traveled 1/10 miles in 1/2 hour, what was the turtles rate in miles per hour

Answers

Answer:

.2 mph

Step-by-step explanation:

what is the ratio of softballs to the total number of balls if there are 3 softballs and 184 is the total?​

Answers

i divided 3 (softballs) into 184 and i got 1/61 (rounded down) so for every 1 softball theres 61 other balls.
hope this helped!

Step-by-step explanation:

Question:-

what is the ratio of softballs to the total number of balls if there are 3 softballs and 184 is the total?

Answer:-

Ratio will be according to given units.

So, Softball : Total Balls

3: 184

Since it cannot be simplified further this is the answer.

Hope it helps ☃️

Find the volume of a rectangular crate with dimensions 3 ft by 4 ft by 8 ft.​

Answers

Answer:

96 feet^3 (feet cubed)

Step-by-step explanation:

Volume is solved with the equation length*width*height, so in this case, 3*4=12 and 12*8=96.

Answer:

192

Step-by-step explanation:

3 times 4 is 24. 24 times 8 is 192

Which figure has reflection symmetry?

Answers

Answer:

the arrow :)

Step-by-step explanation:

The arrow has reflection symmetry

1. Which equation shows the proportional
relationship in the table?
Time (weeks) 2 5 10
Trees Planted 130 325 650
A y = 2x
B y = 65x
C y = 130x
D y = 2x + 130
please help.

Answers

Answer:

B. [tex] y = 65x [/tex]

Step-by-step explanation:

Equation showing a proportional relationship between two quantities, is usually written as [tex] y = kx [/tex]. Where,

y = output/dependent variable

x = input/independent variable

k = constant of proportionality that exists between each pair of values given.

In this case:

y = trees planted

x = time (weeks)

To find the constant of proportionality, k, use any given pair as (x, y). Let's use (10, 650).

Substitute y = 650 and x = 10 into [tex] y = kx [/tex], and solve for the value of k.

[tex] 650 = k(10) [/tex]

Divide both sides by 10

[tex] \frac{650}{10} = k [/tex]

[tex] 65 = k [/tex]

[tex] k = 65 [/tex]

Substitute k = 65 into [tex] y = kx [/tex] to generate the equation that shows the proportional relationship in the table:

[tex] y = 65x [/tex]

A chair costs $155. What is the total cost with a 30% discount and 5.5% sales tax?

Answers

Answer:

$114.46

Step-by-step explanation:

Mirna earned $120 baby-sitting during the spring break. She needs to save $90 for the German Club trip. She wants to spend the remainder of the money shopping. Use s for the amount of money Mirna can spend. Enter your inequality in the most simplified form.

Answers

Answer:

$30

Step-by-step explanation:

s + 90 = 120

s = 120 - 90

s = 30

There are commonly used four inequalities:

Less than = <

Greater than = >

Less than and equal = ≤

Greater than and equal = ≥

The most simplified inequality form of the amount of money s to spend on shopping is

s ≤ 30

Where s is the amount to spend.

What is inequality?

It shows a relationship between two numbers or two expressions.

There are commonly used four inequalities:

Less than = <

Greater than = >

Less than and equal = ≤

Greater than and equal = ≥

We have,

Mirna earned $120 babysitting during spring break.

She needs to save $90 for the German Club trip.

She wants to spend the remainder of the money shopping.

This means,

The remainder amount,

= 120 - 90

= $30

We can write an inequality as,

s ≤ 120 - 90

s ≤ 30

Where s is the amount of money to spend on shopping.

Thus,

The most simplified inequality form of the amount of money s to spend on shopping is

s ≤ 30

Learn more about inequalities here:

https://brainly.com/question/20383699

#SPJ5

The sum of three consecutive even integers is 126. Let x represent the first integer, x + 2 represent the second integer, and x + 4 represent the third integer.

Which equation can be used to find the first integer?




3x + 126 = 2x + 6

3x + 6 = 126

2x + 6 = 126

3x = 2x + 6

Answers

Answer:

3x + 6 = 126

Step-by-step explanation:

If you add all of them

x + x+2 + x+4 = 126

simplify the left-side

3x+6=126

subtract 6 from both sides and you get

3x = 120

divide both sides by 3

x=4

true or false -5 > -9

Answers

Answer:

True

Step-by-step explanation:

Positive Number = 7 > 5

Negative numbers : -5 > -7

True ! -9 means it’s further and -5 means it’s closer which means it’s colder

is -4.67 a rational number

Answers

Answer:

No

Step-by-step explanation:

A local parking garage charges $2.50 per hour. If Jason parks in the parking
garage for 3 hours, how much will he need to pay.

Answers

Answer:

$7.50

Step-by-step explanation:

what is the range of y = -x + 3 if the domain is {-2,0,2,4}?

Answers

Answer:

i dont know

Step-by-step explanation:

i is spelt with i, and so on.  

Round 9.8846387057 to the nearest whole number.

Answers

Answer:

10

Step-by-step explanation:

Hey there! The answer is 10 because if it is 9.5 or higher you will round it up to the nearest number. In this case, you are rounding 9.88, so you round up to the nearest whole number, which is 10.

~I hope I helped you! :)~

Answer:

10

Step-by-step explanation:

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