Step-by-step explanation:
if x is equal to - 1
Then
2x² + 5x + 6
= 2* ( -1)² + 5 * (- 1) + 6
= 2 - 5 + 6
= 8 - 5
= 3
Hope it will help :)❤
Answer:
x=2
Step-by-step explanation:

Add 14 to both sides

Square root it
x=2
Answer:
Option 4
Step-by-step explanation:
You divide 1/2 by the whole problem
5x-15=20
and go from there its too long to explain but its option 4
Answer:
80 m/s
Step-by-step explanation:
Answer:
It’s a 1/2 chance it’s heads.
Step-by-step explanation:
Because there’s two sides