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

F(x)=-4x+3 vertical translation of 5 units down

Answers

Answer:

Gigi Jojo Jojo hip-hop Dutch him

so do Cob zoom from chick dunno drink gum

Step-by-step explanation:

hjjjhb. bjkn

jkk.

hj. hm.

gin

ghb.

8vb.

ucnluh itg.hboy

Use the graph to answer the question.
Which rational function is shown on the graph?
y
O Rx) = x+1
fa
x²+1
f(x) =
x + 1
Ax) = x + 1
10
10
O fx) =*+1

Answers

Answer:

C. f(x)=x-1/x+1

Step-by-step explanation:

edge2020

Functions can be represented by tables and equations

The function represented by the table is f(x) = x + 1

From the table, we have the following ordered pairs

(x,y) = (-1,0) (0,1) (1,2) and (2,3)

Notice that the difference between the x and y values is 1.

So, we have:

y - x = 1

Add 1 to both sides

y = x + 1

Express as a function

f(x) = x + 1

Hence, the function represented by the table is f(x) = x + 1

Read more about linear functions at:

https://brainly.com/question/15602982

A dolphin can leap 15 feet out of the water. The world record high jump for a human is 8
feet. How much higher can a dolphin leap than a human?

Answers

Answer:

7 feet

Step-by-step explanation:

becuse you do 15-8 and get 7

I NEED HELP ASAP YOU WILL BE LOVED

Answers

Answer:

Keplers Third Law

Step-by-step explanation:

Kepler's Third Law relates the period of an orbit to the radius of an orbit, if the orbit is circular, and to the semimajor axis if the orbit is elliptical.

Let's derive it for a circular orbit, assuming a mass m is orbiting a mass M, with r being the radius of the orbit.

ΣF = ma

GmM/r2 = mv2/r

Cancelling the m's and a factor of r gives:

GM/r = v2

We can bring in the period using:

v = 2πr / T

This gives GM/r = 4π2r2/T2

Re-arranging gives:

Kepler's Third Law: T2 = (4π2/GM) r3

For an system like the solar system, M is the mass of the Sun. So the constant in the brackets is the same for every planet, and we get the relationship that the period of the orbit is proportional to r3/2.

The same with satellites orbiting the Earth - in that case M is the mass of the Earth, but again the larger the orbit the larger the period.

From the diagram below, if the measure of < <= 30°, and side AB = 16, then side AC =

Select one:
a.
b.8
C.32
d. 16

plsss help it’s for geometry 2

Answers

Answer:

32

Step-by-step explanation:

The length of AC as per he sine of an angle is 32.

What is the sine of an angle in a right angle triangle?

The sine of an angle is the ratio of the height and the hypotenuse of the triangle.

Given, ∠C = 30°

AB = 16

Therefore, sin ∠C = (AB/AC)

Therefore, sin (30°) = 16/AC

⇒ (1/2) = 16/AC

⇒ AC = 2 × 16

⇒ AC = 32

Learn more about the sine of an angle here: https://brainly.com/question/22688137

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A car increases, then decreases, its speed. Which table could represent the speed of the car? A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 43, 41, 42, 43. A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 47, 49, 48, 47. A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 45, 45, 43, 41. A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 43, 41, 41, 41.

Answers

Answer:

The speed increases (45—>47—>49) then decreases (48—>47) over time.

Step-by-step explanation:

HOPE THIS HELPED ✨

Answer: The speed increases (45—>47—>49) then decreases (48—>47) over time.

Each output of a function is 0.25 greater than the corresponding input. Which equation is a rule for
the function?
O y = 0.25x
O y = x/0.25
O y = x +0.25
O y = x - 0.25

Answers

Answer:

A. y = x+0.25

1. Two phone plans offer 500 free minutes per month. Plan A charges $29.99 per month with a charge of $0.45 for each additional minute. Plan B charges $34.99 per month with a charge of $0.40 for each additional minute. 1. Write an inequality to find the number of additional minutes, m, for which Plan A costs more than Plan B for any given month.​

Answers

 

Step-by-step explanation:

Plan A costs 100 minutes more than Plan B for the given month.​

What is inequality?

Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.

Plan A is $29.99 per month plus $0.45 per minute further than the allotted time. Plan B costs $34.99 per month plus $0.40 for each additional minute.

According to the given question, we can write the inequality would be as:

⇒ 29.99 + 0.45m > 34.99 + 0.40m

⇒ 0.45m - 0.40m > 34.99 - 29.99

Apply the subtraction operation, and we get

⇒ 0.05m > 5

⇒ m > 5/0.05

Apply the division operation, and we get

⇒ m > 100 minutes

Therefore, Plan A costs 100 minutes more than Plan B for the given month.​

Learn more about inequalities here :

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Solve for S pls!!!

5s = 3s + 30

Answers

S = 15 should be the correct answer

Answer:

s= 15

Step-by-step explanation:

3 x 15 = 45

30 + 45 = 75

75 divided by s(15) =

5

this is how I got my answer

good luck and I hope this helps! :)

and can I get a brainliest? you don't have to, though

Your bank account has a balance of $12 . You deposit $60 . What is your new balance?

Answers

Answer:

$72

Step-by-step explanation:

Just add it together

Your new balance is $72

3b+2(b-3)=4 Solve for b.

Answers

Answer:

b = 2

Step-by-step explanation:

3b + 2(b - 3) = 4

--distributive property-- 2(b - 3) = 2b - 6

3b + 2b - 6 = 4

(add like terms)

5b - 6 = 4

(add 6 to both sides)

5b = 10

(divide both sides by 5 to get b alone)

b = 2

plz help me out! What is the result when x^3 + 6x^2 + 10x + 25 is divided by x+ 5?

Answers

Answer:

x² + x + 5

Step-by-step explanation:

Using Synthetic division

 - 5 | 1    6    10     25

        ↓  - 5   - 5   - 25

       -----------------------

        1    1      5      0 ← remainder

Since the remainder is zero then (x + 5) is a factor of the polynomial

The Quotient = x² + x + 5

Thus

x³ + 6x² + 10x + 25 = (x + 5)(x² + x + 5)

The red lines on the diagram show the layout for a running event. Runners will race around the triangle-shaped grassy area. What is the total length of the race course? what is The total distance in km.

Answers

Answer:

Total distance = 5.754 km

Step-by-step explanation:

Red lines of the right triangle show the layout of the race course.

Total length of the race course = Perimeter of the triangle

Perimeter of the triangle = Sum of the measures of all three sides

                                         = 1.83 + 1.524 + 2.4

                                         = 5.754 km

Therefore, total distance of the race course is 5.754 km.

Answer:

5.754

Step-by-step explanation:

If the temperature at 7:00 am was - 7 degrees C and the temperature rose
8 degrees C during the morning, what was the temperature by noon?

Answers

Answer:

Temperature in noon = 1°C

Step-by-step explanation:

Given:

Temperature on 7:00 Am = -7°C

Temperature rose = 8°C

Find:

Temperature in noon

Computation:

Temperature in noon = Temperature on 7:00 Am + Temperature rose

Temperature in noon = -7°C + 8°C

Temperature in noon = 1°C

can someone please help me with this question ​

Answers

Answer:6

Step-by-step explanation:

What does the word range mean in algebra

Answers

Answer:

The difference between the lowest and highest values. In {4, 6, 9, 3, 7} the lowest value is 3, and the highest is 9, so the range is 9 − 3 = 6. Range can also mean all the output values of a function.

Step-by-step explanation:

Hope this helps!

The range is the set of all possible output values

write 2x X(5y-y)/2 in a simplified form

Answers

Answer : the simplified form is 4xy.

Emery borrowed money from her brother to buy a new phone and is paying off a fixed amount each week. After 2 weeks, she will owe $456, and after 5 weeks, she will owe $228.

a. Write an equation in point-slope form to represent the situation.

b. What was the original amount Emery owed?
608$
c. How much is being paid each week?
76$

I only need the answer to question 1

Answers

Answer:

A. $608 B. $76

Hope this helps

Answer:

[tex]y=5w+2w=228[/tex]

Step-by-step explanation:

You have at most $3.65 to make copies for a school project. Each copy costs $0.25. Write and solve an inequality that represents the number of copies you can make.

Answers

The equation for the problem is [tex]0.25x[/tex] ≤ [tex]3.65[/tex]

Hope it helps!

You can make the maximum number of copies would be 14.6 which is determined by the inequality 0.25x ≤ 3.65 where x represents the number of copies.

What is inequality?

Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.

What are Arithmetic operations?

Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions. The operator that performs the arithmetic operation is called the arithmetic operator.

You have at most $3.65 to make copies for a school project. Each copy costs $0.25 which is given in the question.

As per the given condition, the required inequality would be:

⇒ 0.25x ≤ 3.65

Here x represents the number of copies

⇒ 0.25x ≤ 3.65

Divided by 0.25 both sides of the inequality, and we get

⇒ x ≤ 3.65/0.25

⇒ x ≤ 14.6

Therefore, you can make the maximum number of copies would be 14.6.

Learn more about inequalities here:

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--a cuando a=-4 y b=7?
Cual es el valor de ese problema?

Answers

Answer:  es -4 + 7 = 3

Step-by-step explanation:

Need Help ASAP
The following federal tax table is for weekly earnings of a single person.

(Table is in the picture I took)

How will the federal tax affect a gross weekly pay of $740 for a single person claiming 1 exemption?

Answer choices:
A.) It increases gross pay by $62
B.) It decreases gross pay by $62
C.) It increases gross pay by $65
D.) It decreases gross pay by $65

Answers

Answer:

id choose B but it could also be D

Step-by-step explanation:

either way I would still choose B

If you simplified 10/15 as a fraction what would the answer be

Answers

Answer:

2/3

Step-by-step explanation:

10/15 can be divided by 5

I have three squares and I want to divide them by 3/4 How many pieces would I have

Answers

Cant help I’m sorry

9. you work a part time job and got your first paycheck from $210. your hourly wage is $8.25. Write and equation that models this situation

a. 8.75 = 210x
b. 210 = 8.75 + x
c. 210 = 8.75 - x
d. 210 = 8.75x

10. you work a part time job and got your first paycheck from $210. your hourly wage is $8.75. how many hours did you work?

a. 3.5
b. 8
c. 4
d. 1

Answers

Answer:

9.= D

10.= 3.5

Step-by-step explanation:

Please help me!!!! Due in 1 hour, whoever helps me will get a brainliest!

Answers

Answer:

1.) The ratio of peaches to oranges 5 : 4

2.) 3 : 12

3.) I have 8 fruits in total, but 2 blueberries. The ratio using numbers would be: 8 : 4

4.)

- 11 : 14

- 14 : 25

- 25 : 11

- 14 : 11

5.) a. False

b. True

c. False

d. True

e. True

Alice is correct. The ratio is 6 : 9 because the question asks what the ratio is of students playing volleyball (6) TO basketball (9).  

Hope this helped and I answered on time :)

Step-by-step explanation:

The Quadratic when written in factored form is (x-3)(x+9)=0. What are the roots?
3 and 9
-3 and 9
3 and -9
-3 and -9

Answers

Set both equal to 0
(x-3) = 0
x = 3
(x+9) = 0
x = -9
So 3 and -9

Marlene decided to buy 2 bags of apples weighing 3 1/4 pounds each, instead of 3 bags weighing 2 2/5 pounds each. Did she end up with more apples or fewer apples by buying the bigger bags?

To find the total weight of 2 bags of apples weighing 3 and 1/4 pounds, multiply.

Answer Choices: 5 1/4, 5 1/2, 6 1/4, 6 1/2.

To find the total weight of 3 bags weighing 2 and 2/5 pounds, multiply.

Answer Choices: 5 2/5, 6 2/5, 7 1/5, 7 2/5.

She ended up purchasing [fewer, more, the same amount of,] apples by buying the bigger bags.

SHORT QUESTION (answer if you are too lazy to rad all of this lol like me): Multiply 3 and 1/4 times 2, Multiply 2 and 2/5 times 3. Thanks <3

I will mark brainliest if the answer is correct :) But you have to ask for brainliest too! Thanks so much, I really need a quick answer :)

Answers

The first fill in the blank is 6 1/2

The second one is 7 1/5

So, she ended up buying fewer apples

Can I have a brainliest?

Answer:

The first fill in the blank is 6 1/2

The second one is 7 1/5

She ended up buying fewer apples

Step-by-step explanation:

What is an equation of the line that passes through the point (-3,-7)(−3,−7) and is parallel to the line 3x-y=53x−y=5?

Answers

Answer:

y  = -3x-14

Step-by-step explanation:

Any line parallel to  

y

=

3

x

+

6

will be in the form  

y

=

3

x

+

c

for some constant  

c

If  

(

x

,

y

)

=

(

3

,

5

)

is a solution to such an equation, then replacing  

y

with  

(

5

)

and  

x

with  

(

3

)

gives

5

=

(

3

)

(

3

)

+

c

5

=

9

+

c

c

=

14

So the desired parallel line would have the equation

y

=

3

x

14

A gym offers kickboxing classes 22 of the 30 days in October. What decimal is equivalent to the fraction of days in October that classes were offered at the gym?

Answers

0.290332258 i’m not sure what you want it rounded to.

explaination:
figure out how many days that is (9) then divide that by how many days in october (31)

Help match them with the answer I would really appreciate it

Answers

Answer:

Graph 1 goes with the equation [tex]y = \frac{1}{2}x - 7[/tex]

Graph 2 goes to the equation y = [tex]-\frac{3}{4}x + 9[/tex]

Graph 3 goes to the equation y = x + 10

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