Answer:
Step-by-step explanation:
Let x represent the number of seventh graders in the choir:
48=x/2
x=96
D. square the binomial inside the parentheses
5
x
+
15
+
2
x
=
24
+
4
x
Add
5
x
and
2
x
.
7
x
+
15
=
24
+
4
x
Move all terms containing
x
to the left side of the equation.
3
x
+
15
=
24
Move all terms not containing
x
to the right side of the equation.
3
x
=
9
Divide each term by
3
and simplify.
x
=
3
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
This is written in vertex notation, meaning that (c,d) is the vertex. We know that c is positive and d is negative, meaning the vertex will be in the 4th quadrant. As for whether the parabola opens upwards or downwards, the quadratic term has a positive coefficient of 1, meaning the parabola opens upwards.
Hope this helps!
