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3 years ago

Is the square root of 75/3 a rational or irrational number?

Mathematics

2 answers:

madreJ [45]3 years ago

8 0

The square root of 75 / 3 ======> Irrational number

square root of 75 / 3

Index Value (n): 75

Number (x): 3

Given Value square root 75 / 3 =======> is IRRATIONAL

The Value is: 1.0147559739645253

Hope that helps!!!!! : )

erma4kov [3.2K]3 years ago

6 0

The square root of 75/3 is a irrational number

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What value of x is in the solution set of 4x – 12 5 16 + 8x?

TEA [102]

Answer:

$4x-12= 16 +8x$

And we can subtract 4x in both sides and we got:

$-12 = 16 +4x$

Now we can subtract in both sides 16 and we got:

$-28 = 4x$

And if we divide both sides by 4 we got:

$x = -7$

And the best solution would be:

-7

Step-by-step explanation:

For this case we assume the following equation:

$4x-12= 16 +8x$

And we can subtract 4x in both sides and we got:

$-12 = 16 +4x$

Now we can subtract in both sides 16 and we got:

$-28 = 4x$

And if we divide both sides by 4 we got:

$x = -7$

And the best solution would be:

-7

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3 years ago

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ira [324]

Answer:

Step-by-step explanation:

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3 years ago

How do I do number 1 and 2? I've tried them several times, but I still can't get it.

AlladinOne [14]

For question 1, you need to look at the number and decide on the closest square numbers.
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For question 2, when we find the area of a 4-sided shape, we have to multiply the 2 adjacent sides. In this case, as the shape is a square when we multiply the 2 sides it is this same as squaring 1 side. This means that when we find the side from an area of a square you take the square root.
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3 years ago

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3 years ago

Please help with 7, 8, and 9, please put in step by step as this is a study guide for a test!

Anika [276]

Answer:

7. f(x) = -6/7x +12/7

8a. (-∞, -3)∪(-3, ∞); b. f(6) = 2/3

9a. f(-3) = -33; b. f(5a) = -50a² +25a

Step-by-step explanation:

7. You are given two points: (2, 0), (-5, 6). It is often useful to start with the 2-point form of the equation of a line:

y = (y2 -y1)/(x2 -x1)(x -x1) +y1

y = (6 -0)/(-5-2)(x -2) +0

y = -6/7(x -2) . . . simplify

y = -6/7x +12/7 . . . slope-intercept form

f(x) = -6/7x +12/7 . . . . the desired functional form

a. The <em>domain</em> is the set of x-values for which the function is defined. It will be undefined when the denominator is zero. So, the domain is all real numbers except x=-3. That can be written as ...

-∞ < x < -3 ∪ -3 < x < ∞

b. Put 6 where x is and do the arithmetic.

$f(6)=\dfrac{6}{6+3}=\dfrac{6}{9}\\\\\boxed{f(6)=\dfrac{2}{3}}$

a. Put -3 where x is and do the arithmetic.

$f(-3)=-2(-3)^2+5(-3)=-2\cdot9-15\\\\\boxed{f(-3)=-33}$

b. Put 5a where x is and simplify.

$f(5a)=-2(5a)^2+5(5a)=-2(25a^2)+25a\\\\\boxed{f(5a)=-50a^2+25a}$

6 0

3 years ago