Answer:
120
Step-by-step explanation:
n^2 has a factor of 18, so factors of 3^2·2. Since n^2 is a perfect square, we know n must have a factor of 3·2 = 6.
n^3 has a factor of 640, so factors of 2^7·5. Since n^3 is a perfect cube, we know n must have a factor of 2^3·5 = 40.
The least common multiple of 6 and 40 is 120.
The smallest positive integer n is 120.
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<em>Check</em>
120^2/18 = 800
120^3/640 = 2700
Let assume that is a rational number. Therefore it can be expressed as a fraction where and .
This means that is divisible by 7, and therefore also is divisible by 7.
So, where
Analogically to ------- is divisible by 7 and therefore so is .
But if both numbers and are divisible by 7, then which contradicts our earlier assumption that .
Therefore is an irrational number.
The coin should land on heads around 50 times
Answer:179.991
Subtract us google or siri
x=-57
