2.8a^2=55
a^2=55/2.8
a= square root of 55/2.8
Answer:
2 6/9. 2 24/36
Step-by-step explanation:
Step-by-step explanation:
To add integers on the number line, you move forward, and you face right (the positive direction) when you add a positive number. As with positive numbers, to add negative integers on the number line, you move forward, but you face left (the negative direction) when you add a negative number.
