Answer:
Step-by-step explanation:
Consider the quadratic equation, we have

Dividing the equation by a, we get

Put
on the other side,

Add
on both the sides,

completing the square, we have

Now, solving for x,


Multiply right side by
,

which is the required quadratic formula.
The first and third option.
Hope this helps.
Answer:
7.25
Step-by-step explanation:
10,9.75,9.5,9.25,
the rest of the sequence would look like
8, 7.75, 7.5, 7.25, 7, 6.75, 6.5, 6.25, 6 etc.
(the pattern is - .25 from the previous number.
so the 8th number in this sequence is 7.25
hope this helps!!:)
Answer:
17 will represent the batches of purple paint he wanted to make. It also represents the number of cup needed for each blue and red paint.
Step-by-step explanation: