It is called the hardy Ramanujan's number, named after the Indian mathematician, Srinivasa Ramanujan, and British Mathematician G. H Hardy.
Hardy went to visit Ramanujan while he was ill. He noticed that the number of the taxi he went in was 1729, which he thought was a dull number.

1729 = 12³ + 1³
1729 = 10³ + 9³

Fujiwara claimed that he proved there are only four numbers that have the property. Even though it seems to be true, he never has shown his proof. No other natural number, other than 1729, can be expressed as a sum of the cubes of two natural numbers in two different ways.

4 0

4 years ago

Arya and Cody each manage a landscaping business. The equation y=15x+30 represents the cost, y, of x hours of landscaping throug

OLga [1]

Answer:

The answer is a

Step-by-step explanation:

7 0

3 years ago

Can someone please help me

neonofarm [45]

The perimeter of the rectangle is given by the formulae,

$Perimeter= 2(l+w)$

Where
$l = s + \frac{1}{2}$
is the length and
$w = s$
is the width of the rectangle.

Now let us substitute into the formula,

$Perimeter= 2(s+ \frac{1}{2} + s)$

$Perimeter= 2(2s+ \frac{1}{2} )$
The above expression corresponds to option
F.

Now when we expand the bracket, we obtain,
$Perimeter= 4s+ 1$
This also corresponds to option A.

The correct answers are

$A and F$

8 0

4 years ago

F(x) = -x2 - 9x - 22​

F(x) = -x2 - 9x - 22