All categories

3 years ago

Is the number 3 squared rational?

2 answers:

6 0

No it isn’t

there is always an odd exponent. So it could not have been made by squaring a rational number.This means that the value that was squared to make 2 (ie the square root of 2) cannot be a rational number. In other words, the square root of 2 is irrational.

Pachacha [2.7K]3 years ago

3 0

Yes The square of any rational number is rational.

You might be interested in

I need help with questions #3-4. I’m not sure if my steps are correct

zheka24 [161]

I'm not sure what you're supposed to round to, but since this is money, I would suggest including the dollar sign in front of the answers and including round to the hundredth's decimal place. Otherwise, you're answers are correct.

7 0

4 years ago

PLEASE HELP WILL GIVE BRAINLIEST AND 5.0 RATING

marusya05 [52]

Answer:

point z is the correct answer.

Step-by-step explanation:

y = (4, 0.5)

w = (4, -0.5)

x= (4, -1.5)

6 0

3 years ago

Read 2 more answers

HELP!! Will give brainliest

Alexxx [7]

Answer:

my brother said it was

Step-by-step explanation:

1400.053...

6 0

3 years ago

Fernando wants to purchase a new laptop for 2323000 columbian pesos. the electronic store has a financing offer. Fernando pays t

Nesterboy [21]

Answer:

i) 3.38%

ii) 23846 pesos

Step-by-step explanation:

The formula for Simple Interest =

Principal × Rate × Time

Simple Interest is calculated as:

Amount(after t years) - Principal(initial amount

From the question,

Amount = 2480000 pesos

Principal = 2323000 pesos

Simple Interest = (2480000 - 2323000)pesos

= 157000 pesos

i. What is the simple interest rate the electronics store is charging if he ends up paying it 2480000 pesos in total?

This means we are to find r, hence:

Simple Interest = Principal × Rate × Time

Time = 2 years

157,000= 2323000 × R × 2

R = 157,000/2323000 × 2

R = 157,000/4646000

R = 0.03379250968

Simple Interest rate = 0.03379250968

Converting to percentage

= 3.379250968%

≈ Approximately 3.38%

ii. How much is weekly payment to the electronics store? Round your answer to the nearest Peso.

We are told in the question that:

Fernando pays the electronic store in weekly installments over two years.

52 weeks = 1 year

Hences

2 years = 52 × 2 = 104 weeks

Weekly payments = 2480000 pesos/104 weeks

= 23846.1538462 pesos

Approximately to the nearest peso = 23846 pesos

6 0

4 years ago

Insert two rational number between 1.3 bar and 1.4 bar

jok3333 [9.3K]

General method:

Given numbers are 1.3 bar and 1.4 bar

1.3 bar = 1.333...
1.4 bar = 1.444...

Two rational numbers between them

= 1.3222... and 1.43333...

Mean Method:

Let X = 1.333... → → →eqn(i)

since the periodicity is 1 then multiply eqn(i) with 10

⇛10×X = 1.333...×10

⇛10X = 13.333... → → →eqn(ii)

Subtract eqn(ii)-eqn(i)

10X = 13.333...

X = 1.333...

(-)

____________

9X = 12.000...

____________

⇛9X = 12

⇛X = 12/9

⇛X = 4/3

and

Let X = 1.444... → → →eqn(i)

since the periodicity is 1 then multiply eqn(i) with 10

⇛10×X = 1.444...×10

⇛10X = 14.444...→ → →eqn(ii)

Subtract eqn(ii)-eqn(i)

10X = 14.444...

X = 1.444...

(-)

____________

9X = 13.000...

____________

⇛9X = 13

⇛X = 13/9

Now we have 12/9 and 13/9

The rational number between them by mean method (a+b)/2

⇛{(12/9)+(13/9)}/2

⇛(25/9)/2

⇛25/18

and Second rational number

⇛{(12/9)+(25/18)}/2

⇛{(24+25)/18}/2

⇛(49/18)/2

⇛49/36

Answer: The two rational numbers between them are 25/18 and 49/36.

also read similar questions: INSERT TWO RATIONAL NUMBERS BETWEEN 2 AND 3. How to find them?

brainly.com/question/85169?referrer

8 0

3 years ago