Is 1,815 a rational number?

Answers

Answer 1
If a number can be represented by a fraction, it is a rational number. So yes, 1815 is a rational number
Answer 2

Answer:

The square root of 1815 is a rational number if 1815 is a perfect square. It is an irrational number if it is not a perfect square. Since 1815 is not a perfect square, it is an irrational number.

Step-by-step explanation:

I comfirmed this, it’s most likely right! (;


Related Questions

How can you use powers and exponents to express known quantities

Answers

The most common ways is to indicate orders of magnitude through multiplying by powers of 10. I expect you’re at least seen something like 6.022∗1023

show up in your texts. The important part for this discussion is 1023

, because it gives us an idea of just how large this value is. If we wrote it all out, it would be: 602,200,000,000,000,000,000,000. You can do the same thing in the other direction, too. 10−28
Common value for certain types of physics, but a very, very small one.

Alternately, when dealing with probability, the function for determining the probability of series of independent events with the same odds is

where p is the probability of a certain outcome and n is the number of times the event occurs. For example, if we want to know what the odds of getting five heads in a row while flipping a coin we’re looking at 125
or 132

But the thing with powers of 10 is the most common I’ve seen, it even occasionally gets named Scientific Notation.

Find the volume of the box.
3
6 ft
5 Ft
The volume of the box is
cubic feet.

Answers

i think 90ft square

length x width x height
6 x 5 x 3
that equals 90
V=90 because v=lwh (v=5*6*3=90)

Raina, Chang, and Alonzo sent a total of 94 text messages during the weekend. Alonzo sent 3 times as many messages as Chang. Raina sent 9 more messages than Chang. How many messages did they each send​

Answers

Answer:

Chang sent 17 messages, Alonzo sent 51 and Raina sent 26.

Step-by-step explanation:

You turn the word problem into an algebraic expression and solve

Raina sent 51, Chang sent 17, and Alonzo sent 26 hopes this helps:)

Simplify: (7xy5)2 (I just forget what to do)​

Answers

Answer:

49x^2 y^10

Step-by-step explanation:

Step 1- 7^2 * x^2 (y^5)^2

Step 2- 49x^2 7 ^5*2

Step 3- 49x^2y^10

Write a unit rate for 53 pages in 2 hours

Answers

Answer: 26.5 pages/hr

Step-by-step explanation:

53 pgs/2 hours = 26.5 pages/hr

Paul gets money for each chore he completes around the house. He receives $5.00 for taking out the garbage all week, $10.00 for cleaning the bathroom, $3.00 for each time he empties the dishwasher, and $4.00 an hour for babysitting his younger sister. This week, he took out the garbage, emptied the dishwasher three times, and babysat his sister for five hours. How much money should he receive?

Answers

Answer

$30

Step-by-step explanation:

If I work Saturday and Sunday for an entire year making $11.00 an hour for 8 hours in a shift. How much did I earn in that year?

Answers

Answer:

$9,152

Step-by-step explanation:

terminating decimals are sometimes,never,always rational numbers ​

Answers

Answer: The answer is Always any number that can be made into a fraction or decimal is a rational number.

Step-by-step explanation:

Any number that can be written in fraction form is a rational number. This includes integers, terminating decimals, and repeating decimals as well as fractions. ... So, any terminating decimal is a rational number.

Simplify the following using a Property of Integer Exponents.

2,345⁰

Answers

It’s 1, anything to the zero power is one.

Anyone know how to do this??

Answers

Answer:180=x-5+2x+5 180=3x (cancel 5 with negative5)x=180/3x=60

Answer:

x = 60

Step-by-step explanation:

In order to make L parallel (||) to M, you want to prove that the angles are same-side interior angles since the Same-Side Interior Angle Theorem only works for parallel lines cut by a transversal.

In order to make the angles (marked with the expressions) same-side interior angles, they have to add up to 180 degrees because they are supplementary angles.

Make an equation where the two angles add up to (equal) 180.

(x - 5) + (2x + 5) = 180

Combine like terms on the left side of the equation.

3x = 180

Divide both sides of the equation by 3.

x = 60

60 is the value of x that will make L || M.


5 pencils and 3 pens costs £11.
4 pencils and 6 pens costs £16.
Find the cost of a pencil.
Find the cost of a pen.

Answers

Answer:

The pencil is £1 and the pen is £2

Step-by-step explanation:

Let the pencil be p and let the pen be f.

5p + 3f = 11

4p + 6f = 16

the top one multiplies by two:

10p + 6f = 22

4p + 6f = 16    subtract

6p = £6

pencil = £1

Then you substitute the value of the pencil into the equation and find the value of the pen.

can someone answer these two for me?? thank you so much

Answers

Answer:

for first pic it's CD and for second pic that's option 1

Answer:

1=1

2=2

Step-by-step explanation:

hope this helps if they are wrong let me know i will fix it for you

I HAVE 2 MIN PLEASE HELP ME PLEASE

Answers

Answer:

The answer is -91.  7 times -13 is -91.

MARK ME BRAINLIEST!!

A square piece of plywood has sides that are 10 feet long. What is the piece of plywood's area

Answers

I don’t really understand the question, but if you’re looking for the area, it would be 100 feet since you have to do “Side x Side”. Hope this helps!

Answer:

100ft^2

Step-by-step explanation:

The area of a square is always one of the side's length multiplied by itself.

10 x 10 = 100ft^2

HELP ME ASAP THANK YOU !!

Answers

Answer:

B

Step-by-step explanation:

It is actually A

5-2x=4-2x+4
5=8
but 5 cannot equal 8 therefore there are no solutions

Solve the equation a = m – n for the variable m.

Answers

M = a+n
you would need to add variable n to both side in order to get variable m by itself :))

Answer:

[tex]\rightsquigarrow\quad\sf{m=a+n}[/tex]

In-depth explanation:

Hi there, let's solve this equation.

Let's rearrange the equation a = m - n for m.

m - n = a

Add n to each side:

m = a + n

Therefore, m = a + n.

Which expression represents a negative value?
2 - |-7 + 31
5- |-12 + 91
15| + |-111
9 - 18 - 141

Answers

Answer:

9-18-141

Step-by-step explanation:

9-18= -9

-9-141= (-150)

A basketball hoop has a
diameter of approximately
18 inches. What is the
circumference of the
basketball hoop?

Answers

The perimeter of the basketball hoop is 18π inches.

The circumference of a circle can be found using the formula:

C = πd

where C is the circumference and d is the diameter of the circle.

In this case, the diameter of the basketball hoop is approximately 18 inches. So we can plug this value into the formula to get:

C = π(18)

Using a calculator or approximating π to 3.14, we can evaluate this expression to get:

C ≈ 56.52 inches

Therefore, the circumference of the basketball hoop is approximately 56.52 inches.

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Find the greatest common divisor of 63 and 42

Answers

Answer:

21

Step-by-step explanation:

What is the distance from (−3, 1) to (−1, 5)? Round your answer to the nearest hundredth.

3.60
4.12
4.47
5.66

Answers

Answer: 4.47 is the correct one :)

Answer:

4.47

Step-by-step explanation:

took the test

The variance of a distribution is 195. What is the standard deviation, rounded to the nearest thousandth? fill in the blank 1

Answers

Answer:√29.5= 5.43139

Step-by-step explanation:

The diameter of a circle is 101010 units.

What is the radius of the circle?

(in units)

Answers

Radius is always half of the diameter. So just divide your diameter by 2 for the answer :)

good luck!

Answer:

5

Step-by-step explanation:

Branliest plz

Evaluate Z=2X+5 solve for z

Answers

Answer:

z=2x+5

Step-by-step explanation:

Choose the letter of the correct answer Write the chosen letter on a separate sheet of
1. The measure of the volume of a rectangular solid is a'b - 63b27a-9ab? Find the dimensions of the
solid
A.(a + 3b). (a - 3b), and (ab + 7)
C. (a + 3b). (3a - 3b), and (ab + )
B.(3a+ 3b). (a - 3b), and (ab + 7)
D. (a + 3b). (a-35), and (ab + 3)
2. The floor plan for a rectangular building states that the length of the building is to be 8 meters more than
times its width. If the floor area is to be 256 square meters, what must be the length and width of the building?
A.6 meters long and 16 meters wide C. 8 meters long and 32 meters wide
B.30 meters long and 10 meters wide D. 32 meters long and 8 meters wide
3. The area of the dining room is 130 square units. If the width is 3 meter less than its length what is the weidin
of the room?
A. 10 units
B. 11 units
C 12 units
D. 13 units
D. 2b + 10
4. One of the factors of 2b2 + 15b-50 is b +10. What is the other factor?
A.2b - 10
B. 2-5
0. 2b +5
5. The area of the nachos is 15x - 10x square centimeters. If the base is 5x centimeters, which is the length of
the height?
A. 3x - 2 cm.
B. 3x + 2 cm
C. 6x-4 cm
D. 6x + 4 cm
pose​

Answers

This question was not properly written

Complete Question

Choose the letter of the correct answer Write the chosen letter on a separate sheet of

1. The measure of the volume of a rectangular solid is a²b - 63b²-9ab³? Find the dimensions of the

solid

A.(a + 3b). (a - 3b), and (ab + 7)

C. (a + 3b). (3a - 3b), and (ab + 3 )

B.(3a+ 3b). (a - 3b), and (ab + 7)

D. (a + 3b). (a-3b), and (ab + 3)

2. The floor plan for a rectangular building states that the length of the building is to be 8 meters more than

times its width. If the floor area is to be 256 square meters, what must be the length and width of the building?

A.6 meters long and 16 meters wide C. 8 meters long and 32 meters wide

B.30 meters long and 10 meters wide D. 32 meters long and 8 meters wide

3. The area of the dining room is 130 square units. If the width is 3 meter less than its length what is the weidin

of the room?

A. 10 units

B. 11 units

C 12 units

D. 13 units

4. One of the factors of 2b2 + 15b-50 is b +10. What is the other factor?

A.2b - 10

B. 2-5

C. 2b +5

D. 2b + 10

5. The area of the nachos is 15x² - 10x square centimeters. If the base is 5x centimeters, which is the length of

the height?

A. 3x - 2 cm.

B. 3x + 2 cm

C. 6x-4 cm

D. 6x + 4 cm

Answer:

1 A.(a + 3b). (a - 3b), and (ab + 7)

2 D. 32 meters long and 8 meters wide

3 A. 10 units

4 B. 2b -5

5. C. 6x - 4 cm

Step-by-step explanation:

Choose the letter of the correct answer Write the chosen letter on a separate sheet of

1. The measure of the volume of a rectangular solid is a²b - 63b²-9ab³? Find the dimensions of the

solid

We pick the options one after the other

A.(a + 3b). (a - 3b), and (ab + 7)

(a² -3ab + 3ab -9b²)(ab + 7)

(a² - 9b²) (ab + 7)

a²b - 9ab³ - 63b²

C. (a + 3b). (3a - 3b), and (ab + 7 )

(3a² - 3ab + 3ab -9b³)(ab + 3)

(3a² - 9b³)(ab + 3)

3a³b + 21ab² - 9b⁴a - 27b³

B.(3a+ 3b). (a - 3b), and (ab + 7)

(3a² - 9ab + 3ab - 9b²)(ab + 7)

(3a² - 6ab - 9b²)(ab + 7)

3a³b +21a² - 6a²b² + 42ab - 9ab³ - 63

D. (a + 3b). (a-3b), and (ab + 3)

(a² -3ab + 3ab - 9b²)(ab + 3)

(a² - 9b²) (ab + 3)

a³b + 3a² - 9ab³ - 27b²

Therefore, option A.(a + 3b). (a - 3b), and (ab + 7) is the correct option

2. The floor plan for a rectangular building states that the length of the building is to be 8 meters more than 3 times its width . If the floor area is to be 256 square meters, what must be the length and width of the building?

Area of a rectangle = Length × Width

Length of the building is to be 8 meters more than times its width.

= Length = 3W + 8

Area = 256m²

Hence:

256 =( 3W + 8 )× W

256 = 3W² + 8W

= 3W² + 8W - 256

Factorise

= 3W(W - 8) + 32(W - 8)

= (3W + 32) ( W - 8)

W - 8 = 0

W = Width = 8m

Length = 3W + 8

Length = 3(8) + 8

= 24 + 8

= 32m.

D. 32 meters long and 8 meters wide

3. The area of the dining room is 130 square units. If the width is 3 meter less than its length what is the width

of the room?

A. 10 units

B. 11 units

C 12 units

D. 13 units

Area = Length × Width

The width is 3 meter less than its length

W = L - 3

Area = 130 square units

Hence:

130 = L (L - 3)

130 = L² - 3L

L² - 3L - 130

= L² + 10L - 13L - 130

= L(L + 10) - 13(L + 10)

= (L - 13) (L + 10)

L - 13 = 0

L = Length = 13 units

L + 10 = 0

L = -10 units.

W = L - 3

L = 13 units

W = 13 - 3

W = 10 units

Therefore, the width of the room is 10 units

A. 10 units

4. One of the factors of 2b² + 15b-50 is b + 10. What is the other factor?

A.2b - 10

B. 2b -5

C. 2b +5

D. 2b + 10

2b² + 15b -50

One of the factors is b +10.

We factorise

2b² + 15b - 50

= 2b² + 20b - 5b - 50

= 2b(b + 10) - 5(b + 10)

= (2b - 5) (b + 10)

The other factor is 2b - 5

B. 2b -5

5. The area of the nachos is 15x² - 10x square centimeters. If the base is 5x centimeters, which is the length of

the height?

A. 3x - 2 cm.

B. 3x + 2 cm

C. 6x-4 cm

D. 6x + 4 cm

Nachos are triangular in shape

Area of a triangle = 1/2 × Base × height

A = 1/2 bh

A = bh/2

2A = bh

h = 2A/b

The area of the nachos is 15x - 10x square centimeters. If the base is 5x centimeters,

h = 2(15x² - 10x)/5x

h = 30x² - 20x/5x

h = 30x²/5x - 20x/5x

= 6x - 4 cm

the length of the height is:

C. 6x - 4 cm

Which graph shows a set of ordered pairs that represent a function?

Answers

Answer:

The middle one is a function because there is only 1  x value distributing 1 y value

Step-by-step explanation:

Answer:

#3, on the top right corner

Step-by-step explanation:

The perimeter of the rectangle below is 54 units. Find the value of x

Answers

Answer: x=5

Step-by-step explanation:

3x appears two times and so does 2x +2. That created the equation 3x + 3x + 2x + 2 + 2x + 2=54. Combine like terms. You get 10x +4=54. Then you solve. Inverse operation: You subtract 4 from 54. Which is 50, then divide by 10. X=5

The value of the x for the given rectangle is 5 units.

What is the perimeter of a rectangle?

The whole distance that a rectangle's boundaries, or its sides, the cover is known as its perimeter. Given that a rectangle has four sides, the perimeter of the rectangle will be equal to the sum of its four sides.

Given, The perimeter of the rectangle below is 54 units.

Also given the length of the rectangle = 3x

and the width of rectangle = 2x + 2

Since, Perimeter of rectangle = 2 *( length + width)

Perimeter of rectangle = 2 * (3x + 2x + 2)

Since we have a perimeter

54 = 2 *(5 x + 2)

5x + 2 = 27

5x = 25

x = 5

Therefore, For the given rectangle, the value of x is 5 units.

Learn more about rectangles here:

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(x + 1)(x - 3)(x - 4)

Answers

Answer:

Simplified:

x^3 - 6x^2 + 5x + 12

Roots:

-1

3

4

Your answer is x^3-6x^2+5x+12

Some number minus 11 is equal to the product of the number and 18.

Answers

Answer:

n - 11 = 18n

Step-by-step explanation:

n−11=18n

Step 1: Subtract 18n from both sides.

n−11−18n=18n−18n

−17n−11=0

Step 2: Add 11 to both sides.

−17n−11+11=0+11

−17n=11

Step 3: Divide both sides by -17.

−17n−17=11−17

n=−1117

Answer:

n = −11/17

Hello, Can you please help me with this problem? It's due at 9:00 pm (Please answer the whole thing if you can!) This is not for me it's for my little sister.

Update : I give you The picture

Answers

1) 6 3+3+3+3+3+3=18 3•6=18
2)6 7+7+7+7+7+7 =42 7•6=42
3)13 8+8+8+8+8+8+8+8+8+8+8+8+8=104
13•8=104
4) 12 14+14+14+14+14+14+14+14+14+14+14+14 14•12=168

Explain and correct the error made by a student who simplified this expression
–2x + 7x + 8 (–2 + 7 + 8)x 13x

Answers

Answer:

−11(−3−3x) ( i think)

Step-by-step explanation:

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