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9966 [12]
3 years ago
12

Is 1,815 a rational number?

Mathematics
2 answers:
Brut [27]3 years ago
7 0

Answer:

The square root of 1815 is a rational number if 1815 is a perfect square. It is an irrational number if it is not a perfect square. Since 1815 is not a perfect square, it is an irrational number.

Step-by-step explanation:

I comfirmed this, it’s most likely right! (;

rewona [7]3 years ago
3 0
If a number can be represented by a fraction, it is a rational number. So yes, 1815 is a rational number
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Please help me thanks
allsm [11]
Smallest side that is opposite the angle is the smallest angle so this would be D for the answer!
6 0
3 years ago
There are three numbers a ,b,c where a>b and b>c. Describe the positions of the numbers on a number line ????
geniusboy [140]
A is the greatest number and C is the least number.
4 0
3 years ago
Read 2 more answers
a chord of 12cm long of 8cm is away from the of the circle what is the lenght of the chord which is 6cm away from the centre
lana66690 [7]

Answer:

The length of the chord is 16 cm

Step-by-step explanation:

Mathematically, a line from the center of the circle to a chord divides the chord into 2 equal portions

From the first part of the question, we can get the radius of the circle

The radius form the hypotenuse, the two-portions of the chord (12/2 = 6 cm) and the distance from the center to the chord forms the other side of the triangle

Thus, by Pythagoras’ theorem; the square of the hypotenuse equals the sum of the squares of the two other sides

Thus,

r^2 = 8^2 + 6^2

r^2= 64 + 36

r^2 = 100

r = 10 cm

Now, we want to get a chord length which is 6 cm away from the circle center

let the half-portion that forms the right triangle be c

Using Pythagoras’ theorem;

10^2 = 6^2 + c^2

c^2 = 100-36

c^2 = 64

c = 8

The full

length of the chord is 2 * 8 = 16 cm

5 0
3 years ago
The city bus station runs buses every 15 minutes. Find the probability that a passenger who arrives at a random time will not ha
Paul [167]
The answer to your problem is A 1/3, is the possibility for a passenger who arrives at noon.
3 0
3 years ago
PLEASE HELP ME! :(
snow_lady [41]
Here, I'll do the first one for you.
When they are talking about a number, use "x".
Since it says twice a number, you say 2x. Or 3x for three times the number
2x+12=3x-31
Then use algebra to find x. Get the numbers on one side and all the x's on the other.
2x+12+31=3x-31+31
2x+43-2x=3x-2x
x=43

Now do the rest on your own!

5 0
3 years ago
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