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miskamm [114]
3 years ago
11

Rationalise the denominator 10/root 2

Mathematics
2 answers:
natali 33 [55]3 years ago
7 0
So,

A denominator is rationalized when there are no irrational or imaginary numbers in it.  Since the square root of 2 is irrational, we just need to multiply the fraction by the square root of 2 over the square root of 2.

\frac{10}{ \sqrt{2} }

Multiply the fraction by the square root of 2 over the square root of 2.
\frac{10\sqrt{2}}{ \sqrt{2}*\sqrt{2} }

Simplify.
\frac{10\sqrt{2}}{2}

5\sqrt{2}

The denominator is now 1, which is a rational number.
Vikentia [17]3 years ago
3 0
Multiply the numerator and denominator by √2
10√2/2
Simplify
5√2
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deff fn [24]

Answer:

y = \frac{7}{2} x - 11

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

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m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (2, - 4) and (x₂, y₂ ) = (6, 10)

m = \frac{10+4}{6-2} = \frac{14}{4} = \frac{7}{2} , thus

y = \frac{7}{2} x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (2, - 4) , then

- 4 = 7 + c ⇒ c = - 4 - 7 = - 11

y = \frac{7}{2} x - 11 ← equation of line

7 0
2 years ago
Abner wants to create a shopping budget where he spends less than $80 per month on clothes. He also wants to spend at least thre
strojnjashka [21]

Answer:

D) Abner can spend $60 per month on school clothes and $20 per month on gym clothes and stay within his budget.

Step-by-step explanation:

In the problem it states that Abner will spend 3 times more on (s)school clothes than (g) gym clothes.

So it would appear as s ≥ 3g.

If we plug in $60 as s (school clothes) and $20 as g (gym clothes), the statement is true.

60 ≥ 3(20)

60 ≥ 60. These numbers make the linear system true.

If you have trouble with this, an easy way to find this answer is simply creating the linear system that represents the problem, (he will buy 3 times more school clothes than gym clothes) s ≥  3g and plug in each variable from the answer choices until you find the variables that make the linear system true.


6 0
3 years ago
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W/5=3 what does w equal
m_a_m_a [10]

Answer:

w=15

Step-by-step explanation:

w/5=3

multiply by 5 on both sides

w=3*5

∴ w=15

7 0
3 years ago
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Which expression represents the following calculation?
mrs_skeptik [129]

Answer:

7.4 x (87-24)

Step-by-step explanation:

The translation is that you multiply the difference of two numbers. So you must get the difference first, that's why you put parenthesis around 87-24. Your answers are sideways and are hard to read, so I'll just give you the correct answer without the answer choice.

5 0
2 years ago
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A triangle has a side length of 3/4 inch and a side length of 3 inches. What could be the length, in inches, of the third side?
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To solve this problem you must apply the proccedure shown below:

 1- If the triangle is a rigth triangle, you must apply the Pythagorean Theorem. Taking the length 3 inches as the hypotenuse, which is the longest side of the triangle, you have:

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