B because you don’t know exactly how many times she’s gonna grab the marbles
There would be 8 tigers in the exhibit. Hope this helps.
Answer:
a) The correct option is C: 4x
b) The correct option is B: 2x
Step-by-step explanation:
a) Usually when we have a real number multiplying a variable, we do not need to write the multiplication symbol.
So instead of writing:
4×x
We can write:
4x
And this will be equivalent.
Then in this case the correct option is C.
b) We know that if we have the multiplication of A by n, this will be equivalent to add A n times.
Then if we have the sum of A, for example, 4 times, we have:
A + A + A + A
And this can be written as 4*A
In this case, we have the expression x + x.
So we are adding x two times, then this can be written as: 2*x, or, as we said earlier, this also can be written as 2x.
Then the correct option is option B.
Survive because your persevering through a tough time
Answer:
The value of x at this instant is 3.
Step-by-step explanation:
Let 
, we get an additional equation by implicit differentiation:
(1)
From the first equation we find that:
(2)
By applying (2) in (1), we get the resulting expression:
(3)
If we know that 
and 
, then the first derivative of x in time is:
From (1) we determine the value of x at this instant:
The value of x at this instant is 3.
