A rate is a special ratio in which the two terms are in different units
I drove 25 miles per hour
For 7: because of the decimal place in the 0.6 it's not a huge number and it's not possible to get a big number like 15000
For 8: because again a fraction dividing is not going to do much you can't get a big difference like the number 30.
You can Calculate the mass of magnesium sulphate obtained from 5g of magnesium.
you need to give more info
Answer:
x^2-14x+49=(x-7)^2
Step-by-step explanation:
This is completing the square
X^2 -14x+__=(x-__)^2
x^2-14x+49=(x-7)^2
-14/2=7
7^2=49
