Answer:
$10
Step-by-step explanation:
If Erin wants 3 CD's at $10 a piece, that is $30 total. She has $20 which means you find the difference. Total needed: $30 - Money in hand: $20 = $10
Please mark answer as Brainliest and give 5 stars.
Answer:-8/15
Step-by-step explanation:
Answer:
The standard form of the parabola is
Step-by-step explanation:
The standard form of a parabola is
.
In order to convert into the standard form, we first separate the variables:
we now divided both sides by 2 to remove the coefficient from and get:
.
We complete the square on the left side by adding 3 to both sides:
now we bring the right side into the form by first multiplying the equation by :
and then we multiplying both sides by to get
.
Here we see that
Thus, finally we have the equation of the parabola in the standard form: