Is 9.78778777... a rational or irrational number?

Answers

Answer 1

The answer is - Irrational

Answer 2

The given decimal number 9.78778777... is non-terminating and non-recurring it is an irrational number.

The given decimal number is 9.78778777....

We need to check whether the given decimal number is a rational or irrational number.

What are rational and irrational numbers?

Rational numbers: Rational numbers are in the form of p/q, where p and q can be any integer and q ≠ 0. This means that rational numbers include natural numbers, whole numbers, integers, fractions of integers, and decimals (terminating decimals and recurring decimals).

Irrational numbers: Irrational numbers are the set of real numbers that cannot be expressed in the form of a fraction, p/q where p and q are integers. The denominator q is not equal to zero (q ≠ 0). Also, the decimal expansion of an irrational number is neither terminating nor repeating.

So, from the definition of rational and irrational numbers, we can say the given decimal number 9.78778777... is irrational.

Since the given decimal number 9.78778777... is non-terminating and non-recurring it is an irrational number.

To learn more about rational and irrational numbers visit:

https://brainly.com/question/3386568.

#SPJ2

Related Questions

PLEASE ANSWER! 15 POINTS

Answers

Answer: 13/15

Step-by-step explanation:

1/5 + 2/3 = 13/15. Since 13/15 can’t be simplified, that’s your answer.

A seed company planted a floral mosaic of a national flag. The perimeter of the flag is 420 feet. Determine the flag's length and width if the length is 110 feet greater than the width. Use pencil and paper. Write three situations to which you could apply the resulting system of equations.
What is the length of the flag?

Answers

Answer:38

Step-by-step explanation:

What is 149/15 as a mixed number?

Answers

Answer:

its an improper

mixed : 9 14/15

Step-by-step explanation:

its a mixed number if the number at the tops in the limit and there is a number at the side that represents whole number(s)

Answer:

the answer is 9 14/15

Step-by-step explanation:

Step 1 - Find Whole Number

Calculate out how many times the denominator goes into the numerator. To do that, divide 149 by 15 and keep only what is to the left of the decimal point:

149 / 15 = 9.9333 = 9

Step 2 - Find New Numerator

Multiply the answer from Step 1 by the denominator and deduct that from the original numerator.

149 - (15 x 9) = 14

Step 3 - Get Solution

Keep the original denominator and use the answers from Step 1 and Step 2 to get the answer. 149/15 as a mixed number is:

The total cost of renting a banquet hall is a function of the number of hours the
hall is rented. The owner of the banquet hall charges $45 per half hour up to a
maximum of 5 hours and a $50 cleaning fee. The equation used to express the
situation is C = 45h + 50, where h is the number of half hours. What is the
greatest value in the range for this situation?

Answers

9514 1404 393

Answer:

$500

Step-by-step explanation:

The greatest rental time is 5 hours, which is 10 half-hours. The value of C for h=10 is ...

C = 45·10 +50 = 450 +50 = 500

The greatest value in the range for this situation is $500.

The obriens are buying new windows for their house. The company installs the new windows for 2100 the total cost for buying the windows and having them installed is 5323.50 of the o'briens pay 230.25 per window how many windows did they buy

Answers

Answer:

Step-by-step explanation:

Given that:

Cost of purchase and installation = 5323.50

Cost per window = 230.25

Cost of installation = 2100

Hence,

Total purchase cost of windows alone :

5323.50 - 2100 = 3,223.50

Therefore, the number of windows purchased is :

(Total purchase cost of windows alone / price per window)

(3,223.50 / 230.25)

= 14

Hence, 14 windows was purchased

EEEEEEEEEEEEEEEEEEEEEEEE

Answers

It would be c & d because -2<-1 is the correct answer

How do I solve this equation by completing the square. 4X^2 + 12x +5 = 21

Answers

The Answer is: x1=-4 x2=1.

If x to the first power is a line, and you multiply two lines together, what do you get? Think of the the exponent.

Answers

Answer: A quadratic equation (also called a parabola)

Step-by-step explanation:

A line can be written as:

f(x) = a*x + c

This is a polynomial with degree 1.

Now, of we have two lines:

f(x) = a*x + c

and:

g(x) = d*x + e

And we multiply them, we will get:

f(x)*g(x) = (a*x + c)*(d*x + e) = a*d*x^2 + a*e*x + c*d*x + c*e

We can rewrite this as:

= (a*d)*x^2 + (a*e + c*d)*x + (c*e)

This is a polynomial of degree = 2, this is a quadratic equation, then if you multiply two lines together, you get a quadratic equation (or a parabola)

Answer:

ax^2+ bx + c

Step-by-step explanation:

I get a parabola, that is, an equation of the second degree

PLEASE I NEED AN ANSWER NOW WILL MARK U BRAINLIEST!!!1!
how do u find y intercept without a graph for systems of equations? (y = x - 6)

Answers

Answer:

-6 is the y intercept.

the number added or subtracted from the x in the slope intercept form is always the y intercept

Step-by-step explanation:

plz mark me brainliest

Which table does NOT show y as a function of x?

Answers

Answer:

Step-by-step explanation:

I don’t really know what to say haha, it’s easy

can someone help me understand this

Answers

Answer:

The answer for the question is E.

quick!! write an equation in slope intercept form using points (-3,0) (3,-4) !

Answers

Answer:

i dunno but the slope is -4/6

Step-by-step explanation:

y=-2/3x -2 this is the slips intercept form
You do y1-y2/x2-x1 and then find the rest using y=mx+b

I need help one this question.

Answers

Answer:

-2

Step-by-step explanation:

the y-intercept is -2

Answer:

y=2x-2

Step-by-step explanation:

Find the slope.

y1-y2/x1-x2

2-(-2)/2-0

That gives you 4/2 or a slope of 2.

The y intercept is at -2.

Y=2x-2

can someone answer the questions on my page if so ill give all the correct answers brainlist.

Answers

Oh okay that’s a bet

someone please solve and find the corresponding angles thanks

Answers

the correct option is b

In a football stadium, 43% of the crowd cheering for Team A, and 52% of the crowd is female. 19% of the crowd is cheering for Team A and female . What is the probability that a randomly selected Person from the crowd are cheering for Team A or female?

Answers

P(TeamA) = 0,43
P(Female) = 0,52
P(TeamA and Female) = 0,19
P(TeamA or Female) = ?

P(TeamA or Female) = P(TeamA) + P(Female) - P(TeamA and Female) <=>

P(TeamA or Female) = 0,43 + 0,52 - 0,19 <=>

P(TeamA or Female) = 0,76 or 76%

15PTS PLEASE HELP ASAP!
(dont write random answers pls))

Answers

Answer:

i think the answer is (-8,-12) but i may be wrong plese correct me if i am

Step-by-step explanation:

y = m + mnp
Solve for n.
pls help me

Answers

Answer:

n = y - m/mp

Step-by-step explanation:

y = m + mnp

y - m = mnp

y - m/mp = mnp/mp

y - m/mp = n

can you please help me with this

Answers

Answer:

Dot plot

Step-by-step explanation:

Each dot on on 0.84 represents each plane. 5 planes had a average cruising speed of 0.84.

Even if you don’t think it is an independent variable, _____ is usually always plotted on the “x” axis.

Help?

Answers

Answer:

Y axis is dependent

Step-by-step explanation:

and x axis is independent, so if its on the x axis, its alwasy a independent variable, hope it helped Lol

v=u + at
u= 2
a= -5
t = 1/2
Work out the value of v.

Answers

Answer:

V= -1/2

Step-by-step explanation:

You would have to add U+AT to get V

If A=-5 and T=1/2, then -5*1/2= -2.5 (A*T)

Then, adding U (which is 2), gives -.5, or -1/2

what is the quotient of 6 1/4 ÷ (-5/8)

Answers

Answer: -10

Step-by-step explanation:

1. Convert 6 1/4 to an improper fraction

25/4

2. Find the quotient using the keep, change, flip method

- Keep the first fraction (25/4)

- Change the division sign to a multiplication sign

- Flip the second fraction (i.e. find the reciprocal)

-5/8 -> -8/5

3. Multiply and solve by multiplying the numerators and denominators together respectively

25/4 * -8/5

25*-8 = -200

4*5 = 20

-200/20 = -10

Answer:

[tex]-\frac{12}{5}[/tex]

Step-by-step explanation:

I need help with this

Answers

Answer:

24.3470022334

Step-by-step explanation:

I hope this helps. It really isn’t too hard. All you need to do is find the multiples of 24

Find two numbers with sum 82 and difference 30.

Answers

Answer: I think it would be 112.

Step-by-step explanation:

What is the ratio 28 : 35 written in lowest terms?
A.9: 15
B.7:19
C.4:5
D.3:7

Answers

Answer:

4:5

Step-by-step explanation:

both sides divide by 7

transversals angles

Answers

B. 2 because it is inside and on the same side as 1

please help me i don’t understand how to do this

Answers

what do u need help with?

SOMEONE ANWSER QUICK !

If you want to solve the system of equations below using the elimination methiod, which of the following should NOT be
your first step:

-3x + 4y = 0
2 - 2y = 8

A)Multiply every term in the bottom equation by 3.

B) Multiply every term of the bottom equation by 2.

C) Multiply every term of the bottom equation by -3.

D Multiply every term of the top equation by 2, and every term of the bottom equation by 4.

Answers

Answer:

I think that the answer would be C because you have to multiply the term at the top. This would mean you would not do C. Sorry if this is wrong. At least you have your eliminating process now. lol so doing C is out of the box, which makes C your answer.

Step-by-step explanation:

If a 70 kg person on a 15 kg sled is pushed with a force of 300 N, what will be person's
acceleration?

Answers

4 m/s

Explanation:
From Newton’s second Law
F = ma

a
=
F
m
=
300 N
60 kg + 15 kg
=
300 N
75 kg
=
4 m/s
2

Which value of x makes the equation x + 7 = 21 true?
O A. 7
O B. 14
O c. 21
OD. 28

Answers

Answer:

b. 14

Step-by-step explanation:

Other Questions

Write a ratio equivalent to the ratio 10:15. a. 15:10 c. 10:30 b. 80:120 d. 40:75 She needs a little less than 4 pounds to make 12 turkey burgers because 1/3 times 12 is about 3.99 pounds. But she only has 3 3/8 pounds which is about 3.375 pounds. What is the concentration of a solution made by diluting 35 mL of 6.0 M HCl to a final volume of 750 mL?If 2.49g of CuNO3 is dissolved in water to make O.830M solution, what is the volume of the solution in milliliters?How many moles of NaOH are present in 13.5mL of 0.17 M NaOH? Which shows the numbers Nine-tenths, 0.3, 0.8, Five-tenths, and Two-tenths in order from least to greatest?0.3, Five-tenths, Nine-tenths, Two-tenths, 0.8Two-tenths, 0.3, Five-tenths, 0.8, Nine-tenthsFive-tenths, Two-tenths, 0.3, 0.8, Nine-tenthsNine-tenths, 0.8, Five-tenths, 0.3, Two-tenths 3. Which countries have the MOST amount of freedom for citizens?UK and RussiaRussia and GermanyUK and GermanyRussia and France Right triangle FGH has midsegments of 15,36, and 39 centimeters given that area of a triangle is represented by the formula A=1/2bh determine the area of triangle FGHA.180cm2B.1080cm2C.1170cm2D.2160cm2 PLEASEEE ANSWER ASAP!! Which atmospheric layer gets warmer as altitude increases and contains the ozone layer?mesospherestratospherethermospheretroposphere The Congress of Vienna tried to re-establish the monarchies (kings) and ensure stability and peace in Europe after Napoleon's disruptions and destruction a.true b.false Many things can alter your heart rate including: exercise, diet, nutrition, sugar, and caffeineTrue or false help pls my math teacher is rude In the accompanying diagram of ABC, AB = 6, BC = 8, and AC = 12. Points X, Y, and Z are midpoints of AB, BC, and AC, respectively. Find the perimeter of quadrilateral XYCZ. Question 8 of 15Which of the following distinguishes electromagnetic waves from mechanicalwaves?A. They carry energy.B. They have frequencies.C. They have wavelengths.D. They don't require a medium to travel through. What does a host cell provide for a virus? *O A source of thermal energy.O Protection from the environment.O Mechanisms for genetic replication.O Large molecules as a food source. What did Alexander the Great do once he became king?A. He took control of India.B. He unified the Greek city-states.C. He conquered the Persian Empire.D. He destroyed Macedonias military. Sophia spent $75.00 of her $225.00 paycheck on new shoes. What percent of her paycheck did she spend on the new pair of shoes?Your answer:if you do solve please make an explanation :) Anyone taking Midterms today? :( Jaguar Plastics Company has been operating for three years. At December 31 of last year, the accounting records reflected the following: Cash 23000 Accounts payable 21000 Investments (short-term) 34000 Notes receivable (long-term) 36000Accounts receivable 4200 Accrued liabilities payable 5300 Inventory 26000 Additional paid-in capital 90900 Equipment 49000 Retained earnings 33900Factory building 101000 Notes payable (current) 48,000Intangibles 4100 During the current year, the company had the following summarized activities: a. Purchased short-term investments for $8,400 cash. b. Lent $5,600 to a supplier who signed a two-year note. c. Purchased equipment that cost $23,000; paid $5,600 cash and signed a one-year note for the balance. d. Hired a new president at the end of the year. The contract was for $87,000 per year plus options to purchase company stock at a set price based on company performance. The new president begins her position on January 1 of next year. e. Issued an additional 1,400 shares of $0.50 par value common stock for $11,000 cash. f. Borrowed $16,000 cash from a local bank, payable in three months. g. Purchased a patent (an intangible asset) for $1,900 cash. h. Built an addition to the factory for $30,000; paid $8,100 in cash and signed a three-year note for the balance. i. Returned defective equipment to the manufacturer, receiving a cash refund of $3,100. Required: Post the current year transactions to T-accounts for each of the accounts on the balance sheet. 6th grade math i mark as brainliest Y en pasado igual por fa The benefits of good nutrition include which of the following?A) All of the above.B) Give you energy to keep going.C) Give your body food for growth.D) Keep you healthy.