Answer:
0.71875
Step-by-step explanation:
Answer:

Step-by-step explanation:
A parabola has the following format:

If a is positive, it's minium value is:

In which

Factoring:
, in which
are the intercepts.
In this question:

So

Suppose a = 1, we have:


The minimum value will be:

We want this minimum value to be -4, which is 4 times the current minimum value, so we need to multiply a by 4. Then

And the parabola is:

The answer is B x is greater than -5 and less than 3
Answer:
c=18
Step-by-step explanation:
Answer: Its irrational since it has a decimal.