Answer:
14
Step-by-step explanation:
5 - ( - 9 ) = 5 + 9 = 14
The double negative becomes positive.
-Chetan K
Answer:
A.
Step-by-step explanation:
Answer:
.
Step-by-step explanation:
We are given the graph of a sinusoidal function.
From the graph we see that,
The given graph is represented by the function
<em>Now, 'If a function f(x) is of period P, then f(bx) has period '.</em>
So, we get,
As, have period .
Then, have period i.e. .
Since, 'Frequency is the reciprocal of the period',
We have,
Frequency of the given function is .
Answer:
100/5
Step-by-step explanation:
Answer:
9 days
Step-by-step explanation:
Let x = days taken by C to do it alone
In one day, A can do: 1/12 (part of the whole work)
In one day, B can do: 1/18 (part of the whole work)
In one day, C can do: 1/x (part of the whole work)
In one day,together A, B and C can do: 1/4 (part of the whole work)
we have this equation:
1/x + 1/12 + 1/18 = 1/4
--> 1/x = 1/4 - 1/12 - 1/18 = 1/9
--> x = 9 (days)