Answer:
a’s average speed is 60km/h
Step-by-step explanation:
x = a’s average speed
60/40 = 90/x
Cross multiplication:
60x = 40x90
60x=3600
Divide both sides by 60
x= 60
250 millilitres
There are 2000 millilitres in 2 litres.
so 2000/8= 250ml
the cup holds 250ml
Hope I helped
Answer:
Step-by-step explanation:
In limits and continuity of a function, for a function to be continuous, the left hand limit of the function must be equal to the left hand limit and they must be equal to the limit of the function at that point. Mathematically;
All continuous functions are known to exist but discontinuous functions doesn't exist.
From the question, the point we are considering is at n =3
Given
but f(3)= 6
As we can see, the left hand limit of the function isn't equal to the left hand limit, this shows that the limit of the function isn't continuous and since all discontinuous function does not exists then lim x → 3 f ( x ) does not exist.
In some cases, there are better solutions than factoring. Consider, for example the quadratic equation x^2+x+1, which is much easier to solve using the quadratic formula than by factoring.