Simple,
first find out how many fluid ounces there are in 1 cup
1 cup=8 fluid ounces
That means for Anu:
2*8=16
Anu has drunk 16 fluid ounces.
Now, Jan, we know that she drinks 2x (twice) as much as Anu...
So,
4 cups:
4*8=32
Thus, it means that Jan has drunk 32 fluid ounces.
Answer:
Approximation f(25.3)=5.03 (real value=5.0299)
The approximation can be written as f(x)=0.1x+2.5
Step-by-step explanation:
We have to approximate
with a linear function.
To approximate a function, we can use the Taylor series.

The point a should be a point where the value of f(a) is known or easy to calculate.
In this case, the appropiate value for a is a=25.
Then we calculate the Taylor series with a number of terms needed to make a linear estimation.

The value of f'(a) needs the first derivate:

Then

We evaluate for x=25.3

If we rearrange the approximation to be in the form mx+b we have:

Then, m=0.1 and b=2.5.
In this use SOHCAHTOA and according to this we will use CAH on your calculator do cos(72)times 4= 1.23 should be the answer
It would be more than 100 inches because in one foot is 12 inches, so take 100 x 12 = 1200 inches
The other equation could be
2y - 6x = -6
Solving:-
y - 3x = -3..........(1)
2y - 6x = -6........(2)
multiplyng the first equation by 2 gives
2y - 6x = -6
so equations (1) and (2) are the same equation
If we graph them they will be the same line
Every point on that line will be a solution.
So there are infinitely many solutions