Which number is rational?

A. -2.1010010001...
B. -0.8974512...
C. 1.3547569...
D. 5.3333333...

HELP!!!!

Answers

Answer 1
d
hope this helps
this is because the .3 is repeating but it is the same number repeating(it is a pattern)

Related Questions

Simplify the expression:
3+9+2k–2

Answers

Answer:

2k+10

Step-by-step explanation:

Good luck!

List the steps for developing a model.

Answers

Answer:

This is for mathematical modeling. . .

Step-by-step explanation:

Mathematical Modeling-

There are four steps to mathematical modeling:

1. Identify the problem and develop a well-defined question.

2.Look for relations and connections between the variables that are involved.

3. Translate features and relationships you have identified into a mathematical model

4. Verify that the mathematical model accurately represents the situation under investigation.

(7TH GRADE MATH) Based on her recipe, Elena knows that 5 servings of granola have 1,750 calories.
Wrote an equation to represent the relationship between the number of calories and the number of servings of granola. (think y=kx)

Answers

Answer:

under y is 700 im guessing under the two would be like 1/2 i dont know k

If you want to buy an item in a store that costs $15 and is on sale for 15% off, then how much would the item actually cost you after the discount? Round to the nearest cent.

Answers

You would have to suck a ban

Answer:

its 10 or 20 which every cause its 0.15 cents

Step-by-step explanation:

Mrs. Wells has a swimming pool that is 12 m long and 4 m wide in her backyard.
What is the area of the space that the pool covers in her backyard?

Answers

Answer:

48.

Step-by-step explanation:

To find area, you need to multiply. If you multiply 12x4 you get 48, if that makes sense.

An 8-question true or false quiz is given to a class. If Lee guessed every question,
how many would she expect to be correct?

Answers

Answer:  4

Work Shown:

n = number of questions = 8

p = probability of getting a question correct = 1/2 = 0.5

n*p = number of questions we expect Lee to get correct

n*p = 8*0.5

n*p = 4

We expect Lee gets about 4 questions correct.

4 question that lee guessed would be correct.

There  8 question of true and false.
Lee guessed every question.

What is probability?

Probability can be defined as ratio of favorable outcomes to the sample of events.

Here,
Probability of guessing right answer = 1/2 = 0.5
Probability of lee guessing right answer out of 8 question.
= 0.5 x 8
= 4

Thus, 4 question that lee guessed would be correct.


Learn more about probability here:
https://brainly.com/question/11234923

#SPJ2

!answer please please with explanation

Answers

Answer:

D

Step-by-step explanation:

1.013^(t+25)=(1.013^t) x (1.013^25)

plz help I k ow she is incorr3ct but idk if it's c or d
for 15 pts!!!​

Answers

Answer:

c

Step-by-step explanation:

Holly is correct because repeating decimals are always rational numbers. Option A

One city has a population of about 2,840,000 people. Another city has
about 3,120,000 people. About how many people live in both cities?

Answers

Answer:

5,960,000

Step-by-step explanation:

Population in one city= 2,840,000

Population in another city= 3,120,000

Population living in both cities= 2,840,000 + 3,120,000 = 5,960,000

                                                 

The types of problems found on ancient papyri, books, and tablets focuses primarily on problems that relate to daily life. The solution methods for many ancient cultures are generally verbal, with mathematical statements written out in words. Why did most ancient cultures primarily write out their mathematical texts in words?

Answers

Answer:

Most ancient societies had symbols to represent numbers, but they did not have symbols to represent operations or unknown quantities. Thus, the problems and solutions to the problems had to be written in word form.

Step-by-step explanation:

Sample response :)

Answer:

Most ancient societies had symbols to represent numbers, but they did not have symbols to represent operations or unknown quantities. Thus, the problems and solutions to the problems had to be written in word form.

Step-by-step explanation:

2.75 + (-2)+(-6.25)
I am so bad at math please help me

Answers

Answer:

-5.5

Step-by-step explanation:

2.75+(-2)+(-6.25)=-5.5

-5.5 :))


hope this helped :))

helpppp meeeeeeeeeee

Answers

im not that fam wit dat but here is how u find the x

Step-by-step explanation:

(THIS AND EXAMPLE!!!!)

To evaluate a function, substitute the input (the given number or expression) for the function's variable (place holder, x).

...

Replace the x with the number or expression.

Given the function f (x) = 3x - 5, find f (4). ...

Find the value of h (b) = 3b2 - 2b + 1 when b = -3. ...

Find g (2w) when g (x) = x2 - 2x + 1.

8. Calculate the length of r or st

Answers

9514 1404 393

Answer:

  30 miles

Step-by-step explanation:

The Law of Sines is used for this purpose. The angle at R is the difference ...

  180° -(23° +34°) = 123°

Then the length r satisfies ...

  ST/sin(R) = RT/sin(S)

  ST/sin(123°) = (20 mi)/sin(34°)

  ST = (20 mi)sin(123°)/sin(34°) ≈ 30.00 mi

The length of r or ST is 30 miles.

Right 20 7 and 500/22000 in decimal form

Answers

Answer:

20.7 and 500.200

Step-by-step explanation:

Answer:

20/7 = 2.8571

500/22000 = 0.0227

Step-by-step explanation:

Mai purchased a prepaid phone card for $25. Long distance calls cost 19 cents a minute using this card. Mai used her card only once to make a long distance call. If the remaining credit on her card is $22.34, how many minutes did her call last?

Answers

14 minutes

25-22.34
2.66 / 0.19
=14

Please, help, this is for my best friend! I will mark Brainliest.

Answers

Answer:

[tex]y = - \frac{3}{20} x + 900 \\ \\ y = - \frac{20}{3} x + 6000[/tex]

Step-by-step explanation:

[tex] \\ part \: a. \:( food \: expenses) \\ to \: solve \: these \: problems \: we \: surmone \\ \: the \: following \: laws : \to \\m = \frac{ y_{2} -y_{1} }{x_{2} - x_{1}} = \frac{815 - 812}{390 - 410} = - \frac{3}{20} = - 0.15 \\ the \: general \: slope \:i ntercept \: form \: is : \\ y = mx + c \\ to \: find \: c \: lets\: insert \: any \: two \: pairs \: for \: x \: and \: y \to \\ 812 = - \frac{3}{20} (410) + c \\ 16,240 = - 3(410) + 20c \\ c = \frac{1747}{2} \\ c = 873.5 \\ \\ therefore \: y = - \frac{3}{20} x + 900 \: (i.e \: to \: he \: nearest \: thousand). \\ \\ \\ part \: b. \: (medical \: expenses) \\ to \: be \: able \: to \: solve \: these \: problems \: we \: surmone \\ \: the \: following \: laws : \to \\m = \frac{ y_{2} -y_{1} }{x_{2} - x_{1}} = \frac{390 - 410}{815 - 812} = - \frac{20}{3} = - 6.667 \\ the \: general \: slope \:i ntercept \: form \: is : \\ y = mx + c \\ lets \: find \: c \: by \: insert \: any \: two \: pairs \: for \: x \: and \: y \to \\ 410 = - \frac{20}{3} (812) + c \\ 1230 = - 20(812) + 3c \\ c = \frac{17470}{3} \\ c = 5823.3333 \\ \\ therefore \: y = - \frac{20}{3} x + 6000 \: (i.e \: to \: he \: nearest \: thousand). \\ \\ [/tex]

Answer:

y= -3/20x+90

y= -20/3x+6000

Step-by-step explanation:

Two-third of Leon's tropical fish in his tank is equal to one-fourth of harry's tropical fish in his tank Find the ratio of the no. Of Leon's tropical fish to the no. Of harry's tropical fish What fraction of the number of harry's tropical fish is the number of Leon's tropical fish

Answers

Answer:

L : H Ratio = 3 : 8  , L as a fraction of H = 3/8

Step-by-step explanation:

Let the no. of Leon's tropical fish be = L

Let the no. of Harry's tropical fish be = H

Given : 2/3 L = 1/4 H

L / H = 1/4 (3/2)

L : H = 3 : 8

Let total fishes or common ratio = x

L = 3/11  (x) , H = 8/11 (x)

Fraction L / H = [ 3/11 (x) ] / [ 8/11 (x) ]

L / H = 3/8

What are the answers for questions for #’s 4, 6 and 8. You can answer the others if you want but don’t have to! Thank you!!! 15 POINTS!!!!!

Answers

Answer:

[tex]question \: \: 4. : \\ 320 \: miles = 3 \: inches. \\ question \: \: 6. : \\586 \frac{2}{3} \: miles = 5.5 \: inches.\\ question \: \: 8. : \\ 9 \frac{1}{10} \: inches =1,092 \: feets.[/tex]

Step-by-step explanation:

[tex]question \: \: 4. : \\ if \: 80 \: miles = \frac{3}{4} \: inch \\ 320 \: miles = \frac{ \frac{3}{4} \: inch \times 320 \: miles }{80 \: miles} \\ \\ 320 \: miles \: = \frac{3}{4} \: inch \: \times 4 \\ 320 \: miles = 3 \: inches. \\ \\ question \: \: 6. : \\ if \: 80 \: miles = \frac{3}{4} \: inch \\ \\ 586 \frac{2}{3} \: miles = \frac{ \frac{3}{4} \: inches \times586 \frac{2}{3} \: miles }{80 \: miles} \\ \\ 586 \frac{2}{3} \: miles = \frac{440}{80} \: inches\\ \\ 586 \frac{2}{3} \: miles = 5.5 \: inches. \\ \\ question \: \: 8. : \\ if \: 1 \: inche = 120 \: feets \\ 9 \frac{1}{10} \: inches = \frac{9 \frac{1}{10} \: inches \times 120 \: feets }{1 \: inche} \\ \\ 9 \frac{1}{10} \: inches = \frac{91 \times 120}{10} \: feets \\ \\ 9 \frac{1}{10} \: inches =1,092 \: feets.[/tex]

- 9/14 over 2/7 in simplest form step by step

Answers

Answer:

-63/28 or 2 1/4

Step-by-step explanation:

when dividing you will be multiplying by the reciprocal of the second fraction. SO it will be...

-9/14 times 7/2

this is... -63/28

Answer:

-9/4

Step-by-step explanation:

   -9

  -----

   14

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

     2

    ----

      7

To divide -9/14 by 2/7, invert 2/7 and multiply instead:

   -9        7

 ------- * -----

   14        2

Reducing, we get:

(-9)(1)

---------  = -9/4

(2)(2)


19. Express 9/4

as a decimal fraction.
Record your answer and fill in the bubbles on your answer document. Be
sure to use the correct place value.

Answers

9/4

(8+1)/4

8/4 + 1/4

2 + 0,25

2,25


If Hailey buys 10 shirts at 10% off and each shirt costs s dollars, which expression is NOT equivalent to the situation?

Answers

Answer:

9.90 per shirt

Step-by-step explanation:

10-.10=9.90

Algebra, help please ASAP

Answers

(-3x +4)(2x -1) Aka question A

Bruh I’m dumb pleaseeeee help

Answers

Answer:

m is the slope

x is the variable

b is the y-intercept

please help

..dffdfd

Answers

Answer:

4 and 15

Step-by-step explanation:

The amounts of household waste generated in a region during two years were 23,400,000tons and 48,100,000tons. what was the total household waste generated over these two years in the region, expressed in scientific notation? (1 point)​

Answers

7.15x10^7 I have to keep typing because the answer requires it to be 20 characters long

what is 32% of 65?????????????????????????????????????

Answers

Answer:20.8 is the correct answer

Step-by-step explanation:asked Siri

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

kayla and 9968

Step-by-step explanation:

Answer:

Jeff, 9968

Step-by-step explanation:

you can take the tens and ones of the number you are multiplying by and use those number to multiply by the first number

50 is in the tens

6 is in the ones

178×56= 9968

Burcu öğretmen elindeki 96 pembe kâğıdı erkek öğrencilere 136 mavi kâğıdı kız öğrencilere her bir öğrenci eşit sayıda kağıt alıcak şekilde paylaştırıyor sınıftaki öğrenci sayısı 30 dan fazla olduğuna Göre sınıf mevcudu en az kaçtır​

Answers

Answer:bsnsnsksnsbs so yeah that’s your answer

Step-by-step explanation:

Suppose that Ashley’s brother, Alex, makes the same dive in 4 increments instead of 6. Write a numerical expression to represent Alex’s elevation change in feet per increment.

Answers

Answer:

Step-by-step explanation:

There is one negative number in the expression so the solution will be negative there isn’t a -1 in the denominator to cancel out the -1 in the numerator

Answer: -60  ft/4 increments

Step-by-step explanation:

Rotations are usually how many degrees?

Answers

Answer:

360

Step-by-step explanation: a rotation is 80 times 4

Answer:

360

Step-by-step explanation:

Because that's the degree of the angle when you spin

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