7 units !! Can you mark me braliest?
I THINK it’s the first or third
Answer:
63
Step-by-step explanation:
This is because 25% of 84 is 21. He knows how to play 21 songs. 84-21=63.
63 is how many songs he does NOT know how to play.
Step-by-step explanation:
Using the Intermediate Value Theorem, the following is applied:
"If f(x) is a continuous on interval [a,b] and we have two points f(a) and f(b) then there must be some value c such that f(a)<f(c)<f(b).
So here there must be a c such that

Note: F(c)=0, the questions that the function have a solution between 0 and 1, so that means we must have some value, c such that f(c)=0 that exists
Next, plug in the x values into the function


Since cubic functions are continuous and -4<0<4, then there is a solution c that lies between f(0) and f(1)
So lets just simplify them first
1 batch = 2 3/4 so...
11/4 cups
and you need to make 3 1/2 batch so..
7/2 batch
then you just multiply it...
11/4 x 7/2
=77/8
=9 5/8
so you will need 9 5/8 cups