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Naily [24]
3 years ago
11

If n is a rational number then n2 is always less than n

Mathematics
1 answer:
stiv31 [10]3 years ago
6 0

That easiliy false. You can prove this by observing that all integers are, in particular, rational numbers. So, for instance, you can think of 4 as \frac{4}{1}, so 4 \in \mathbb{Z}\subset\mathbb{Q}

And obviously, you have 4^2=16>4

It is true that the square of every rational number between 0 and 1 is smaller than the number itself.

But since not all rational numbers are between 0 and 1, the general claim is false.

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How do I solve for X?
Dmitriy789 [7]

The value of x in the special right triangle is 39.60 ft.

<h3>Right angle triangle</h3>

Right angle triangle has one of its angles as 90 degrees. The side and angles can be found using trigonometric ratios.

Therefore, let's find the base of the triangle with 30 degrees.

sin 30° = opposite / hypotenuse

1 / 2 = 7 / b

b = 14 ft

Let's use the value(14 ft) to find the height of the biggest triangle.

sin 30 = opposite / hypotenuse

sin 30 = 14 / h

0.5h = 14

h = 14 / 0.5

h = 28 ft

Therefore, let's find the value of x .

sin 45° = 28 / x

x = 28 / 0.70710678118

x = 39.5979797464

x = 39.60 ft

learn more on right triangle here: brainly.com/question/10412877

8 0
2 years ago
You buy a bunch of snacks from the grocery story that cost $9.50. You also have a 10% off your total purchase coupon. The tax ra
Bond [772]

Answer:

889 or 900

Step-by-step explanation:

I found 4 percent of 9.50 and added it, then found 10 percent and added it.

4 0
2 years ago
Can someone please help me?
Oliga [24]
1/36 because you have 36 different possibilities when rolling it twice and getting and a 4 then a 6 is only 1 possibility out of the 36
1/4 because there is 3/6 chance on one roll and second roll
We said with 2 rolls there is 36 possibility (6x6)
So 3x3=9 which the amount of possibility to get a even number
9/36 simplify is 1/4 (divided by 9 the top and bottom)
Hope this helps!
Hahah my insta is ___genan___
6 0
2 years ago
Read 2 more answers
3) 7(-2k + 4) - 6 = 7k - 20 can someone help I have more ​
Amanda [17]

Answer:

Step-by-step explanation:

4 0
3 years ago
Pls help me almost due
iVinArrow [24]

Answer: disagree its backwards

Step-by-step explanation: the x intercept always comes first so its actually (-4,2)

6 0
3 years ago
Read 2 more answers
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