Answer: no it is not
Step-by-step explanation: any number that repeats forever cannot be written as a rational way or a fraction. So it is not rational.
The unknown number is n. So n is the unknown variable in the equation.
In order to write an equation in which n is included we must know some dependence of n with other values.
We know that <span>the difference of three times a number and 44 is −19. So, we can write:
3*n-44=-19
3*n=-19+44
3*n=25
n=25/3
</span>
Answer:
Step-by-step explanation:
We will represent the length of the rectangle as
and the width as
.
From this problem, we can say
. We can also deduct an equation from the second sentence:

(from substitution)



Using this value for
, we can find
:


The length of the rectangle is 23 cm and the width of the rectangle is 18 cm.
Answer:Note that the Pythagorean Theorem only works with right triangles. You can use the Pythagorean Theorem to find the length of the hypotenuse of a right triangle if you know the length of the triangle's other two sides, called the legs.
Step-by-step explanation:Hope this helps :)