Answer:
4j=-4
j=-1
Step-by-step explanation:
Answer: 49
Step-by-step explanation:
Answer:
y= -5
Step-by-step explanation:
-3(4) +9y = 57
-12 + 9y = 57
-12 + 12 + 9y = 57 + 12
9y/9 = -45
y= -5
Answer:

Step-by-step explanation:
we know that
The quadratic equation in standard form is equal to

we have

This is a quadratic equation in vertex form
Convert to standard form

Apply distributive property

Combine like terms
----> quadratic equation in standard form
Answer:
30:4
Step-by-step explanation: