is −2π rational or irational?

Answers

Answer 1
Irrational.
Rational means that you can write it as a fraction, you cannot express pi as a fraction therefore it’s not rational

Related Questions

Abby earned $56 in 7 hours at her job today. She wants to know how much she could earn tomorrow if she works 34 hours at the same hourly rate.
How much will Rachel earn in 34 hours? please help me !!!

Answers

Answer:

It will be $85,  34÷ 4

will give you 8.5 then you multiply it by 10,× 10=85

Answer:

272

Step-by-step explanation:

56:7=8 (she earns 8$ in 1 hour)

8×34=272

Jasim has invested 600 dinars in a business at the rate of 4 % for 3 years. Find his

i- simple interst ?


ii- total amount after 3 years ​

Answers

Answer:

Simple interest=72dinars

Total amount=672dinars

Step-by-step explanation:

i.Simple interest=(P×R×T)/100

Interest=(600×4×3)/100=72dinars

ii.Total amount after 3years=Principal+Simple interest

=600+72=672 dinars

what is the area of the figure to the nearest hundredth

Answers

Answer:

7.75

Step-by-step explanation:

Is anyone else taking Algebra 2 honors on Edge nuity? let me know!!!!

Answers

Answer:

Nope

Step-by-step explanation:

I'm in 7th grade.

What is the difference between speed and velocity

Answers

Answer:

Speed is during an action and velocity is built up when your using speed in a direction

Step-by-step explanation:

Determine the leading coefficient of the polynomial p, which has exactly three roots: -1, 1 and 2, and for which p(3) = 24 is true.


Answers

Answer:

The polynomial is [tex]x^3-2x^2-x+2[/tex]

Leading coefficient is 1

Step-by-step explanation:

We need to determine the leading coefficient of polynomial p having roots

-1,1 and 2 and p(3)=24

Roots of polynomial are: -1,1,2

We can write them as:

x=-1, x=1, x=2

x+1=0, x-1=0, x-2=0

or:

(x+1)(x-1)(x-2)=0

Multiplying the terms to find the polynomial:

[tex](x+1)(x-1)(x-2)=0\\(x(x-1)+1(x-1))(x-2)=0\\(x^2-x+x-1)(x-2)=0\\(x^2-1)(x-2)=0\\x^2(x-2)-1(x-2)=0\\x^3-2x^2-x+2=0[/tex]

So, The polynomial is [tex]x^3-2x^2-x+2[/tex]

The leading coefficient is the coefficient with highest power So, in polynomial we have highest power [tex]x^3[/tex] so, leading coefficient is 1

A grocery store is offering a sale on bread and soup. Khalil buys four cans of soup and
three loaves of bread for $11.67. Ronda buys eight cans of soup and one loaf of bread for $12.89.
Homework. Help
a. Write equations for both Khalil's and Ronda's purchases.
b. Solve the system to find the price of one can of soup and the price of one loaf of bread

Answers

Answer:

a) cblo

2)$3.44

Step-by-step explanation:

4 cans and 3 loaves=11.67

8 cans and 1 loaf= 12.89.

Set up equation:

x=cans

y=loaves

[tex]4x+3y=11.67\\8x+y=12.89[/tex] This is the answer for question A.

Multiply eq1 by 2:

[tex]8x+6y=23.34[/tex]

Subtract eq3 by eq2:

[tex]5y=10.45\\y=2.09[/tex]

Substitute:

[tex]8x+2.09=12.89\\8x=10.8\\x=1.35[/tex]

One can of soup and one loaf of bread=

[tex]1.35+2.09 or 3.44[/tex]

So:

[tex]$3.44[/tex]

Hope this helps :D Please hit the crown if u can !!

a. The equation should be

4x + 3y = $11.67

8x + y = $12.89

b. The price of one can of soup and the price of one loaf of bread is $1.355 and $2.09

The calculation is as follows:

here we assume the soup be x and bread be y

So, the equations are

4x + 3y = $11.67 .........(1)

8x + y = $12.89.........(2)

Here we need to multiply by 2 in equation 1

8x + 6x = $23.34

8x + y = $12.89

5y = $10.45

y = $2.09

Now x should be

8($2.09) + y = $12.89

x = $1.355

Learn more: https://brainly.com/question/4804019?referrer=searchResults

What is the Mean of 2,10,18,14,6

Answers

Answer:

10

Step-by-step explanation:

2+10+18+14+6= 50

then divide by 5 to get mean = 10

Answer:

the answer is 10

Step-by-step explanation:

if you add up all the numbers you get 50

and if you divide it by the number of results, in this case 5, you get 10!

798/6 plsssssss help

Answers

Answer:

133

Step-by-step explanation:

If you divide 798 by 6 you would get 133

Plz mark brainliest

Answer:

133

The question wasn't really specific, so I guess this is the answer? If the question is something else, I can edit this answer or delete it if I can't solve.

can someone help with 2.7 please, step by step for better understanding pls, it’d be much appreciated... i don’t have much points left to ask for more help :(

Answers

56 mm = 5.6 cm since there are 10 mm in a cm, so we divide by 10 to go from mm to cm.

Since the diameter is 5.6 cm, this means 12 such cans lead to 12*5.6 = 67.2 cm of length needed to house 12 cans along this row.

Similarly, if we had 6 cans along each column, then 6*5.6 = 33.6 cm is needed for this

The diagram below shows what I mean. This diagram is a top-down view of the box. In other words, it's a birds-eye view.

The last dimension we need to take care of is the height of the box. That would be 2*5.6 = 11.2 cm since there are 2 cans along the height

Therefore, the smallest box possible has dimensions of 67.2 cm by 33.6 cm by 11.2 cm

You could have bigger boxes of course, though you'll need to place cushions inside so the cans don't rattle around. The smallest box dimensions listed above are ideal to avoid wasting too much cushion material (you'll still may need some form of cushion though just not as much).

i neeeed helpppp asapp​

Answers

Answer:

C

Step-by-step explanation:

You can't divide 12 by 9, if you want a number with no decimals that is.

Are the lines shown below parallel? Explain

Answers

Answer:

C. No, the slopes are not the same

tiffany answered 90% of questions on her math test correctly there were 50 questions on the test how many questions did tiffany answer correctly

Answers

45 questions

.9 x50 = 45

answer please serious answers only

Answers

Answer:

u = -7/4

Step-by-step explanation:

This is correct because to find the perpendicular, you need to find the opposite reciprocal of the slope. In this case, the slope is 4/7, so the opposite reciprocal is -7/4.

Answer:

[tex]\displaystyle m_u=-\frac{7}{4}[/tex]

Step-by-step explanation:

Perpendicular Lines

If two lines t and u are perpendicular and have slopes mt and mu respectively, then the following relationship is satisfied:

[tex]m_t\cdot m_u=-1[/tex]

Knowing line t has a slope of \frac{4}{7}, then the slope of line u can be found by solving for mu:

[tex]\displaystyle m_u=-\frac{1}{m_t}[/tex]

[tex]\displaystyle m_u=-\frac{1}{\frac{4}{7}}[/tex]

Operating:

[tex]\mathbf{\displaystyle m_u=-\frac{7}{4}}[/tex]

Helpp me plzzz!!

A.) Side - Side - Side
B.) Side - Angle - Side
C.) Angle - Side - Angle
D.) Angle - Angle - Side
E.) Hypotenuse - Leg

Answers

Answer:

side angle side. Seems contrary

Answer:

side angle side. Seems contrary

Step-by-step explanation:

A number is 25 more than its 5/6th part. Find the number

Answers

Answer:

150

Step-by-step explanation:

25x6=150

25x5=125

150-125=25

150
Explanation
25x6=150
25x5=125
150-125=25

Rewrite the proportion 7:21 = 3:9 as a proportion using fractions.

A) 7/9 = 3/21
B) 7/21 = 3/9
C) 21/7 = 3/9
D) 7/21 = 9/3

Answers

Answer:

7/21=3/9 is the proportion of 7:21=3:9

The population of ages at inauguration of all U.S. Presidents who had professions in the military is​ 62, 46,​ 68, 64, 57. Why does it not make sense to construct a histogram for this data​ set? Choose the correct answer below.
A. There must be an even number of data values in the data set to create a histogram.
B. This data set would yield a histogram that is not​ bell-shaped.
C. Adequate class boundaries for a histogram cannot be found with this data set.
D. With a data set that is so​ small, the true nature of the distribution cannot be seen with a histogram.

Answers

Answer:

The correct option is D.

Step-by-step explanation:

A histogram is a bar chart wherein the horizontal scale signifies class interval (or classes of data values) and the vertical scale signifies frequencies or percentages. The altitudes of the columns relate to the frequency values, and the columns are drawn together without breaks.

The histogram has the following properties:

• Shows the shape of distribution

• Shows the location of center

• Shows the spread of data

• Helps in identifying outliers

Since the sample collected is so small, the true nature of the distribution cannot be seen with a histogram.

Thus, the correct option is D.

Solve. f/9 - 21 = -27f=

Answers

Step-by-step explanation:

f/9+27f=21

f(1/9+27)=21

f(244/9)=21

f=189/244

Please help me ASAP! I’m stupid so I don’t know what to do

Answers

Answer:

Step-by-step explanation:90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you

Answer:

∠5

Step-by-step explanation:

So basically it's what it sounds like. They alternate inside. If it was alternate exterior it would means that they would alternate on the outside. Kinda hard to explain, but easy once you understand it.

Solve each system by graphing or using a table. Check your answers.
- 2x +y = 2
- x + 2y = -2
Use the graphing tool to graph the system.
Click to
enlarge
graph
What is the solution to the system of equations? Select the correct choice below and, if necessary, fill in the
answer box to complete your choice.
O A. The solution is
(Type an ordered pair.)
B. There are infinitely many solutions.
OC. There is no solution.

Answers

Answer: there is no solution

Amanda is making white oatmeal cookies with raisins and pecans for her club.The recipe makes seventeen of the big,chewy kind of oatmeal cookies with lots of raisins and nuts.It takes one-fourth of a cup of nuts and one-half of a cup of raisins just for the seventeen cookies!There are thirty-four members in Amanda's club .If she makes exactly thirty-four cookies,how many cups of nuts will she need ?

Answers

Answer:

1/2 cup of nuts

Step-by-step explanation:

If it takes 1/4 cups of nuts to make 17 cookies

Then it takes 1/4 * 1/17  = 1/68 cups of nut to make 1 cookie

So,

If 1/68 cups of nut are needed to make 1 cookie

To make 34 cookies we need;

34 * 1/68 = 1/2 cup of nuts

Write an equation of the line passing through the point (2,8) that is perpendicular to the line 2x-3y=7

Answers

Answer:

y = (-3/2x) + (35/4)

Step-by-step explanation:

So the perpendicular line will have a slope that is the opposite reciprocal of the other line's slope. Solve for the original line's slope first:

2x - 3y = 7 --> -3y = -2x + 7 --> y = (2x/3) - (7/3)

So, the slope of the perpendicular line will be (-3/2x)

Solve for the y-intercept of the perpendicular like by using the linear equation and substituting in (2,8):

8 = (-3/(2*2)) + b --> (32/4) = -(3/4) + b --> b = (35/4)

So, y = (-3/2x) + (35/4)

Hope that helps! :D

if one apple cost 5 rupee orange cost 0.5 rupee and grape cost 0.25 rupee . find the number of apple orange ad grape we can buy from 20 rupee.

Answers

Answer:

3

Step-by-step explanation:

Add all the costs of the fruit.

5.75

Then divide it by 20.

= 3.4782.....

You can't have a quarter or half and apple so you round down.

Son answer is 3.

Hope this has helped!

75=-5(3+6m) I need this​

Answers

Are you finding m? If so here is the answer:

75 = -5(3 + 6m)

Distribute:
75 = -15 - 30m

Add 15 to both sides:
75 = -15 - 30m
+15 +15
90 = -30m

Divide by -30 on both sides:
90/-30 = (-30m)/-30

You should get: m = -3

you convert 71,100,000 into scientific notation?

Answers

7.11x10^7 would be 71,100,000 in scientific notation

I WILL GIVE BRAINLIEST
Given ΔDEF : ΔRST, find x.



12
15
16
64

Answers

Answer:

The answer would be 12, I am very sure. :)

BRAINLIST!!

The Kims drove 450 miles in each direction to Grandmother's house and back again. If their
car gets 25 miles per gallon and their cost for gasoline was $3.25 per gallon for the trip to
Grandmother's house, but $3.50 per gallon for the return trip, how much more money did they
spend for gasoline returning from Grandmother's house than they spent going to Grandmother's?
A) $2.25
B) $4.50
C) $6.25
D) $9.00

Answers

The trip there is 58.5$ and the trip back is 63$. 63-58.5= 4.50. Which makes the answer B

Helpp me pleasee I need help

Answers

Answer:

1/2 teaspoon

Step-by-step explanation:

1/4 + 1/4 = 1/2

Answer:

1/2 teaspoon

Step-by-step explanation:

because 1/4 + 1/4 is 2/4 and simplified it is 1/2

what is the simplified product of 3/8 * 1/2 * 2/3?

A) 1/8
B) 2/16
C) 3/24
D) 6/48​

Answers

Answer:

option A, 1/8

Step-by-step explanation:

[tex]\frac{3}{8}[/tex] × [tex]\frac{1}{2}[/tex] × [tex]\frac{2}{3}[/tex]

⇒  3 × 1 × 2/8 × 2 × 3

⇒ 6/48

⇒ 1/8

therefore, option A is the correct option

   

Answer:

A. 1/8

Step-by-step explanation:

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