Answer:
ms girll i think you multiply
20
10
60/3 = 20
3 1/3 * 3 = 10/3 * 3 = 10
Mark brainliest please
Answer:
of a second
Step-by-step explanation:
We can convert each time into fractions.
11.74 is the same thing as 
and 11.69 is the same thing as 
.
We know that 11 - 11 = 0, so we can focus on the fractions for now.
Let's subtract 
from 
.
.
We can now simplify 
by dividing both the numerator and denominator by 5.
.
Hope this helped!
Among the coefficient signs (++-) there is one sign change, so Descarte's rule of signs tells you there is one positive real root. Changing x to -x does not affect the signs, so there is also one negative real root. Then there are two complex roots to bring the total number to 4, the degree of the polynomial.
The factorization is
f(x) = (x^2 +25)(x^2 -4)
Each of these can be factored using the form for factoring the difference of squares.
f(x) = (x -5i)(x +5i)(x -2)(x +2)
There are 2 real roots: ±2.
There are 2 imaginary roots: ±5i.
