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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.

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Which equation does the graph of the systems of equations solve?

Viktor [21]

Answer:

We conclude that option 'C' i.e. 1/3x+1=2x-4 is the correct option.

Step-by-step explanation:

From the given graph, it is clear that the two lines meet at the point (3, 2).

In other words,

at x =3, y = 2

Thus,

The point of intersection between two lines is:

(x, y) = (3, 2)

Here:

x = 3 is the value of the x-coordinate

y = 2 is the value of the y-coordinate

Now, checking the equation i.e. 1/3x+1=2x-4 to determine whether the equation contains the correct value of x-coordinate or not.

$\frac{1}{3}x+1=2x-4$

Subtract 1 from both sides

$\frac{1}{3}x+1-1=2x-4-1$

Simplify

$\frac{1}{3}x=2x-5$

subtract 2x from both sides

$\frac{1}{3}x-2x=2x-5-2x$

Simplify

$-\frac{5}{3}x=-5$

Multiply both sides by 5

$3\left(-\frac{5}{3}x\right)=3\left(-5\right)$

Simplify

$-5x=-15$

Divide both sides by -5

$\frac{-5x}{-5}=\frac{-15}{-5}$

Simplify

$x=3$

Therefore, the value of x = 3

Conclusion:

We conclude that option 'C' i.e. 1/3x+1=2x-4 is the correct option.

4 0

4 years ago

20 x 18 x 5 properties

Artemon [7]

20 x 18 x 5= 1,800
20 times 18 equals 360, then you mutiply 5 and get 1,800

8 0

3 years ago

the water level in a swimming pool increased from 4.5 feet to 6 feet what is the percent increase in the water level rounded to

yuradex [85]

The answer would be twenty five percent because four and one half is equal to seventy-five percent and one hundred minus seventy-five would be twenty-five.

8 0

4 years ago

15% converted to a fraction then simplified to lowest terms

mojhsa [17]

Percent means parts out tof 100 so 15%=15/100
divide by 5/5
3/20=lowet terms

4 0

4 years ago

Write expanded form 640,739

Rama09 [41]

600,00 + 40,00 + 700 + 30 + 9 is 640,639 in expanded form

8 0

4 years ago