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Likurg_2 [28]
3 years ago
7

Rationalise 1/√5 please tell​

Mathematics
1 answer:
Assoli18 [71]3 years ago
6 0

Answer:

Step-by-step explanation:

1/\sqrt{5}

=1\sqrt{5} *\sqrt{5}/\sqrt{5}

=1*\sqrt{5}/\sqrt{5}*\sqrt{5}

=1\sqrt{5}/5

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Is 30/12 and 40/16 equivalent?
Flura [38]
30/12 in simplest form is 5/2 (cause 6 * 5 = 30 and 6 * 2 = 12)
40/16 in simplest form is 5/2 (cause 8 * 2 = 16 and 8 * 5 =40)
so yes they're equivalent;
30/12 = 40/16
Hope that helps :D have a nice day!
5 0
3 years ago
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In which geometry is there no line parallel to a given line through a point not on the line?
tangare [24]

Answer:

Given a line and a point not on it, no lines parallel to the given line can be drawn through the point. you get an elliptic geometry.

Step-by-step explanation:

4 0
3 years ago
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Help! Will give brainliest and 5 stars rating and thanks
Morgarella [4.7K]

Answer:

x < -4 or x > 8

On a number line, make two arrows:

1) going towards left from -4 with an open circle at -4

2) going towards right from 8 with an open circle at 8

Step-by-step explanation:

l -4 +2x l -3 > 9

l -4 +2x l > 12

l 2x - 4 l > 12

2x - 4 > 12

2x > 16

x > 8

-2x + 4 > 12

-2x > 8

x < -4

On a number line, make two arrows:

1) going towards left from -4 with an open circle at -4

2) going towards right from 8 with an open circle at 8

8 0
3 years ago
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Which of the following is an even function? A.f(x) =(x-1)^2 b. F(x)=8x c.f(x) =x^2-x d.f(x)=7
pentagon [3]

Answer:

Step-by-step explanation:

A.f(x) =(x-1)^2  is even because of that even exponent, 2.

b. F(x)=8x  is odd because x has the exponent 1.

c.f(x) =x^2-x   is neither even nor odd

d.f(x)=7    is even because the exponent is even:  7^0

4 0
3 years ago
What are three solutions to the equation -8y=-3x+16?
andreyandreev [35.5K]
The answer is <span>Slope = 0.750/2.000 = 0.375 
x-intercept = 16/3 = 5.33333<span> 
y-intercept = 16/-8 = 2/-1 = -2.00000 hope this helps</span></span>
8 0
3 years ago
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