Explain if 12.1 is rational or irrational

Answers

Answer 1
It is rational because it is a terminating decimal. It can be represented as a ratio of two integers (121/10)

Related Questions

Help!! 12am = 4, solve for a!! (literal equations)

Answers

12am=4 , for a okay get a by itself. am=4/12 a=4/12/m
a= 1/3m and start by dividing both sides by 12

The perimeter of the rectangular base of a monument is 210.5 feet. If the width is equal to its​ length, what are the dimensions of the​ base?

Answers

Final answer:

The length and the width of the base of the square monument are both 52.625 feet.

Explanation:

The question is asking for the dimensions of the base of a monument that has a rectangular shape and a total perimeter of 210.5 feet. Given that the length and width are the same (as it's a square), this implies that both the length and the width of the square are each half of the total perimeter.

We start by dividing the perimeter by 4, as the perimeter of a square is the sum of all four of its sides. So, the length or width of the base of the monument is 210.5 ft / 4 = 52.625 ft.

Learn more about Square Perimeter here:

https://brainly.com/question/29192128

#SPJ2

what does (-7)^2 eaqual??

Answers

[tex](-7)^2 = (-7)(-7) = 49[/tex]

So, 49 is the answer.

How to graph the function. compare the graph with the graph of f(x)=x

Answers

to graph this function, plot the y-intercept at 6. Then, continue plotting points that go up and over one. Some points are (1,7) (2,8) etc.

Compared to f(x) = x, it vertically shifted 6 up.

Hope this helped!

Type the correct answer in each box. Spell all words correctly, and use numerals instead of words for numbers. If necessary, use / for the fraction bar(s).


A scientist measures the diameter of a bacteria cell and yeast cell. She finds the diameter of a bacteria cell to be 0.0000021 meters and the diameter of a yeast cell to be 0.00000398 meters.

The approximate diameter of the bacteria cell is represented by point ----------
on the number line.
The approximate diameter of the yeast cell is represented by point -----------
on the number line.
The diameter of the bacteria cell is approximately ----------
times smaller than the diameter of the yeast cell.

Answers

Since there are 5 zeros after the decimal point in front of the 21, 0.0000021=2.1*10^(-6) (by moving the decimal 6 places to the right, and we have 6 instead of 5 because we have to account for moving the 2 in front of the decimal too). For 0.00000398, we can use a similar process to get 3.98*10^(-6). Since 2.1 rounds to 2 (since 1<5) and 3.98 rounds to 4 (since 9>5), we have the approximate diameter of the bacteria cell be 2*10^(-6) and the yeast cell be *10^(-6)

Since we want to find how many times smaller the bacteria cell is,. we divide the bacteria cell by the yeast cell to get (2*10^(-6))/(4*10^(-6))=1/2=2/4, meaning that the bacteria cell is half as big as the yeast cell and the yeast cell is 2 times as big as the bacteria cell (since the reciprocal of 1/2 is 2)

The approximate diameter of the bacteria cell shows that it would be best represented on the number line by point 2 x 10⁻⁶.

The approximate diameter of the yeast cell is best represented by the point 3 x 10⁻⁶.

Compared to the yeast cell, the approximate diameter of the bacteria cell is approximately 2 times smaller.

What points best represent the diameters of the yeast and bacteria cells?

To find the power of 10 that the first whole number needs to be multiplied by, count the number of zeros and the whole number.

The number of zeros and the first whole number for 0.0000021 is 6 so this is the number to multiply 10 by:

=  2 x 10⁻⁶

The same would apply to the number 0.00000398 as there are also five zeros so it becomes:

= 3 x 10⁻⁶

How much larger than the bacteria cell is the yeast cell?

You can find this as:

= Diameter of yeast cell / Diameter of bacteria cell

= 0.00000398 / 0.0000021

= 1.89

= 2 approx.

Find out more on the bacteria cell at https://brainly.com/question/3024933.

Is 7/45 a terminting or repeating decimal

Answers

7/45 = 0.155 (with the 5's repeating)....so it is repeating

7/45 is a non-terminating and repeating decimal.

What is a rational number?

A rational number is a number that can be written in the form of p/q where q is not equal to zero.

Example:

1/2 is a rational number because it is terminating.

19/3 is a rational number because it is non-terminating and recurring.

We have,

7/45

= 0.155555555555

This means,

It is non-terminating.

It is a repeating decimal.

Thus,

7/45 is a non-terminating and repeating decimal.

Learn more about rational numbers here:

https://brainly.com/question/24398433

#SPJ2

elvin read 3/7 of the pages of the book he has 56 pages left to read how many pages has he already read

Answers

3/7 = x/56
7*8 =56
3*8 = 24

How many pairs of whole numbers have a sum of 99

Answers

Listing each pair could be one way to work this out

1 + 98
2 + 97
3 + 96
4 + 95
5 + 94
6 + 93
7 + 92
8 + 91
9 + 90
10 + 19

Keep going until we get to the point where the pairs of numbers start to reverse

48 + 51
49 + 50
51 + 48 ⇒ Here when the pairs start to reverse.

From 1 + 98 to 49 + 50 there are 49 pairs
Then from 51 + 48 to 98 +1 there are 48 pairs

Total pairs of whole numbers that add up to 99 is 49 + 48 = 97 pairs



Which statement best defines a universal law

A. It is in fact some of the time

B. It is in effect at all times

C. It changes over time

D. It operates only under specific times

Answers

Answer: B. It is in effect at all times.

Explanation:
By definition, a universal law is immutable, meaning that it does not change and it is in effect at all times. 

This definition should be appled within the scope of what "universal" means.
For example, the law of "Cause and Effect" is stated in physics by Newton's third law: To every action, there is an equal and opposite reaction.  

Discussion:
Our perception of the universe is limited usually to our solar system, within a physical and material universe. We cannot be certain that our accepted universal laws apply in the same manner in a nonmaterial or spiritual universe.
The term universal law is mostly used in law and ethics and describes law or principle that is universal acceptable, applicable and translated. The universal law is the most legitimate law.
According this explanation, the following statement best defines a universal law:
B. It is in effect at all time.

what is 3x - 7 = 8x +23

Answers

3x-7 = 8x +23
-3x. -3x
-7= 5x+23
-30=5x
X= -6

    A scuba diver is swimming 15 feet below the water’s surface. The diver swims up slowly at 0.5 feet per second for 4 seconds; and then stops to look at an eel. Finally, the diver swims up for 3 more seconds at 0.4 feet per second. What is the diver’s new depth? Enter your answer in the box.

Answers

11.8 feet.

15 feet -(0.5feet×4)
=15feet-2feet
=13 feet
13feet-(0.4feet×3)
=13feet-1.2feet
=11.8 feet

Answer:

-11.8

Step-by-step explanation:

because the scuba diver was below sea level and the key word is below sea level which is negative

HOW DO I SOLVE THIS 1/5(6+3+1)2

Answers

First clear the bracket
1/5(6+3+1)2
1/5(10)2
Then multiply
1/5(20)
1/5 *(20)
20/5
=4

Hope it helps!

A bus service drives passengers between Milwaukee and Chicago every day. They travel from city to city eight times each day. The distance between the two cities is 89 miles..In February there are 28 days. The company's budget allows for 28,000 total miles for February. Do you think the budget is reasonable? Explain

Answers

First calculate the total distance covered each day:

distance per day = 89 miles * 8 = 712 miles / day

 

Then calculate for the whole month (28 days):

distance = 712 miles / day * 28 days = 19,936 miles

 

Since the actual distance is lesser than the budget, hence it is reasonable.

A triangle has one angle measuring 3x degrees. A second angle measures 2x + 20 degrees and the third angle measures 4x -20 degrees. What is the value of x

Answers

Answer:

20

Step-by-step explanation:

the comment below or above me has everything right except one thing. 4 plus 2 plus 3 equals 9, Not 10. 180 divided by 9 equals 20 and there's your answer

The value of x = 20.

We have the three angles of a triangle.

We have to measure the value of x.

Th sum of all the angles of a triangle is ?

The sum of all the angles of a triangle is 180°.

According to the question, we have -

∠1 = 3x

∠2 = 2x + 20

∠3 = 4x - 20

The sum of all the angles of triangle is 180°. Therefore -

3x + 2x + 20 + 4x - 20 = 180

9x = 180

x =20

Hence, the value of x = 20.

To solve more questions on Triangles, visit the link below-

https://brainly.com/question/25950519

#SPJ2

Would you be more or less likely to take a job in which the type of work is enjoyable to you? Why?

Answers

more likely because you are doing a job that you enjoy doing.

How do you solve this 2/5c+4-1/5c= -9

Answers

Final answer:

To solve the equation 2/5c + 4 - 1/5c = -9, eliminate the fractions and simplify. Find a common denominator, combine terms, and solve for c. The solution is c = 0.

Explanation:

To solve the equation 2/5c + 4 - 1/5c = -9, we need to eliminate the fractions and simplify the equation.

First, find a common denominator for the fractions, which is 5c:

Multiply the entire equation by 5c:2c + 20c - c = -45c

Combining like terms:

21c = -45cAdd 45c to both sides:21c + 45c = 0

Combine the terms on the left side:

66c = 0;Divide both sides by 66 to solve for c:c = 0

Therefore, the solution to the equation is c = 0.

Complete the factoring
7y+42=7()

Answers

7y + 42 = 7(y + 6)

Hope this helps.
7y+42=7
+42 +42
7y=49
%7 %7
Y=7 that's the answer

Why is 101 not in the sequence?

Answers

You are moving up in 4's, so your sequence should always be even, it can never be odd so 101 can never be part of the sequence.

What is the product of 0.4 and 2.5

Answers

.4 × 2.5 = 1. product means multiply / sum would be addition
the product of 0.4 x 2.5 equals to 1. 

a
[1] Angle Addition Postulate[2] Subtraction Property of Equality
b
[1] Substitution Property of Equality [2] Transitive Property of Equality
c
[1] Segment Addition Postulate [2] Definition of Congruent Segments
d
[1] Segment Addition Postulate[2] Substitution Property of Equality

Answers

The answer is D. First, it is the segment addition postulate because the two segments make up the whole. Second, it's substitution because you are substituting EF + FG for FH.

Hope this helps!

Answer:

d:(1)Segment addition Postulate

(2).Substitution Property of equality.

Step-by-step explanation:

We are given that

EG=FH

We have to write a justification for each step.

1.EG=FH

Given information

2.EG=EF+FG

Segment addition Postulate

3.FH=FG+GH

Segment addition postulate

4.EF+FG=FG+GH

Substitute property of equality

[tex]EF=GH[/tex]

Subtraction property of equality

Answer:d:(1)Segment addition Postulate

(2).Substitution Property of equality.

(-8x) divided by (-2)

Answers

the answer is 4x hope this helps


At 5 a.m., the temperature at an airport was −9.4°F . Six hours later, the temperature was 2.8°F . Which expression represents the total temperature change over the six hours?

I need help with this now!

Answers

-9.4 + x6 = 2.8 this is an equation for the question

Answer:

(-9.8 + x) = 2.8

Step-by-step explanation:

The temperature at an airport at 5:00 am was -9.4° F.

Six hours later the temperature was 2.8° F.

Let temperature change in the 6 hours is = x° F

Then the temperature after six hours from -9.8° F will be = (-9.8 + x)° F

And the expression representing the change will be

(-9.8 + x) = 2.8

write the chemical symbol for the ion with 12 protons and 10 electrons

Answers

MG+2 your welcome :)

the perimeter of a rectangle is 332 cm and the width is 76 cm. Find the rectangle's length

Answers

332/2 =166

166-76 = 90

length = 90 cm



Kate is allowed to work no more than 20 hours a week. She has already worked 13 hours this week. At most, how many more hours CAN she work? Write an inequality and solve.

Answers

Knowing Kate has worked 13 hours already, we write:
13
Knowing Kate can work no more than 20 hours a week, we write:
20 - 13 = 7
This represents the maximum amount of hours, 7, Kate can work the rest of the week. However, she may work less than 7 hours, we can represent this number with x, and thus we represent it as an inequality like so:
x ≤ 7 hours

The number of hours in a week of Kate should be less than or equal to 20. Then the inequality is x + 13 ≤ 20.

What is inequality?

Inequality is simply a type of equation that does not have an equal sign in it. Inequality is defined as a statement about the relative size as well as is used to compare two statements.

Kate is allowed to work no more than 20 hours a week.

She has already worked 13 hours this week.

Let in this week, the number of hours remaining will be x.

then the inequality equation will be given as

13 + x ≤ 20

More about the inequality link is given below.

https://brainly.com/question/19491153

solve -3.2=2.5+1.2m

Answers

-3.2=2.5+1.2m
-2.5 -2.5
------
-5.7/1.2= -4.75

m= -4.75

Giving away brainliest (assuming there is more than one person answering, of course)
Basic Cookie Recipe:
1/2 cup shortening. 1/2 teaspoon baking soda
1/2 cup butter 2 cups chocolate chips
2 1/2 cups flour. 1/3 cup cocoa
1 cup brown sugar. 1 teaspoon vanilla
1/4 cup granulated sugar

To enrich Choco flavor, you want to add more cocoa to the recipe. Because cocoa is bitter, you need to increase the amount of GRANULATED sugar in the recipe. Write an equation to describe how the amount of GRANULATED sugar, s, in the recipe relates to the amount of cocoa, c. If the amount of cocoa is tripled, how much more granulated sugar should you add? Explain reasoning (or not, but please).

Answers

1/3 cup of coco and  1/4 cup granulated sugar 

i say you just add 1/3 add one more third and you wont have to add any more sugar are there any answer choices im sorry if i didnt help if there are any answer choices i could answerin the comments please mark me brainliest please

One movie club charges a $100 membership fee and $10 for each movie. Another club charges no membership fee but movies cost $15 each. Write and solve an equation to find the number of movies you need to buy for the cost of each movie club to be the same.

HELP!!!

Answers

The first movie club is
y=10x+100
The second movie club is
y=15x
You can set them equal to each other getting 15x=10x+100
Subtract the 10x from both sides
5x=100
X=20 or the number of movies needed to make the amount be the same is 20 movies

Multiply. 7x3/4 Enter your answer as an improper fraction, in simplified form.

Answers

[tex] \frac{7x3}{4} [/tex]

[tex] \frac{21}{4} [/tex]

The simplified form of fraction 21/4 is 3 4/7.

We have,

To multiply 7 by 3/4, you can multiply the numerator (7) by the numerator (3) and the denominator (4) by the denominator (1):

= 7 x 3 = 21 (numerator)

= 1  x 4 = 4 (denominator)

So, the result is 21/4.

However, we can simplify this improper fraction further.

Since 21 and 4 have a common factor of 7, we can divide both the numerator and denominator by 7:

21 ÷ 7 = 3 (numerator)

4 ÷ 7 = 4/7 (denominator)

Therefore,

The simplified form of fraction 21/4 is 3 4/7.

Learn more about fractions here:

https://brainly.com/question/24370499

#SPJ6

alexis divided a 1 3/4 pound bag of apples among 3 friends. how many pounds of apples did each friend receive?

Answers

1 pound ÷ 3 friends = 1/3 pound per friend

then 3/4 apples split between 3 friends = 1/4 pound per friend

turn those into decimals 1/4 = 0.25
1/3 = 0.33 now add, 0.25 plus 0.33 equals 0.58 pounds of apples are given to each friend.

in fraction form that would be 58/100 or 29/50 and that's as low as the fraction can go.

Since Alexis divided a 1 3/4 pound bag of apples among 3 friends, the pounds of apples that each friend receives is 7/12 pounds.

Number of pounds of bags of apple to share = 1 3/4

Number of friends to share the apple = 3 friends

Therefore, in order to get the number of pounds of apples that each person gets, we'll need to divide 1 3/4 by 3 and this will be:

= 1 3/4 ÷ 3

= 7/4 ÷ 3

= 7/4 × 1/3

= 7/12

Therefore, the pounds of apples that each friend receives is 7/12 pounds of apple.

Read related link on:

https://brainly.com/question/5599199

Other Questions
What must her minimum speed be just as she leaves the top of the cliff so that she will miss the ledge at the bottom, which is w = 1.75 m wide and h = 8.00 m below the top of the cliff? Assume a nations economy is operating above full employment. if business taxes increase, how will output, employment, and price level likely change? output / employment / price level During a test crash an airbag inflates to stop a dummy's forward motion. the dummy's mass is 75kg. If the net force on the dummy is 825n toward the rear of the car , what is the dummy's deceleration. 25. What is (2.5 X 102)(6.3 X 105) in scientific notation? Show all your work below a. 1.575 X 107 b. 1.575 X 106 c. 1.575 X 1010 d. 1.575 X 108 What is the most common inorganic compound in living things? An emt uses the abbreviation cpap when speaking to another emt. this is an appropriate use of an abbreviation because: PRECIPITATION can take the form of rain, sleet, hail or snow. Question 2 options: True FalseA TORNADO is believed to be caused by two levels of rotating air traveling in different directions and/or speeds.Question 3 options:TrueFalseThe weathering of the Earth's surface is known asQuestion 4 options:implosion.corrosion.erosion.evaporation. After 1688, Britain relaxed their enforcement of colonial rules, especially trade laws. What was this new policy called? Explain the advantage for melanin granules being located in the deep layer of the epidermis Explain how voting helps protect limited government and promote the rule of law Soon after taking an aspirin, a patient has absorbed 320 mg of the drug. After 2 hours, only 80 mg remain. Find an exponential model for the amount of aspirin in the bloodstream after t hours. Rewrite (10+3)5 using the Distributive Property. Then simplify. A woman is brought into an emergency room after a severe automobile accident. She's unconscious and badly injured. Her husband arrives at the emergency room at the same time as she arrives in the ambulance. the doctor explains the wife's condition to her husband and asks for permission to operate on her.The husband agrees to the operation. The husband 's approval for the operation is called ________ consentA. MutualB. SubstitutedC. ContractualD. Informed Select from the drop-down menu to correctly identify the property shown.4.8 + (3.2 + (1.6)) = (3.2 + (1.6)) + (4.8)A. Associative PropertyB. Commutative PropertyC. Opposite of a Sum Property If |x| = 6 then x = -6 or What are all the positive integers that are in the solution set for m < 3 Choose all that apply. Which of the following is an example of a primary source? a. a diary entry written during the time period that is being studied b.a letter written during the time period that is being studied c.a newspaper article published thirty years after the event that is being studied d.a book about an event that is written by a historian Which will you likely have to provide if you apply to a four-year college One way to make a data table stand out on the screen and help bring the viewers attention to it is to add a shadow behind the table. How can a PowerPoint user add a shadow to a table?by choosing the Layout tab under Table Tools, clicking on Effects, and selecting Shadowby choosing the Layout tab under Table Tools, clicking on Shading, and selecting Shadowby choosing the Design tab under Table Tools, clicking on Effects, and selecting Shadowby choosing the Design tab under Table Tools, clicking on Shading, and selecting Shadow ____ come tan rpido como tAlgo NingunasAlgunos Nadiawhich best completes the phrase? Steam Workshop Downloader