Step-by-step explanation:
solved in the picture....
Answer:
Step-by-step explanation:
2b^2 - 3b + 4a^2........a =-6 and b = 8
now we sub
2(8^2) - 3(8) + 4(-6^2)
2(64) - 24 + 4(36)
128 - 24 + 144
272 - 24
248 <==
Answer:
pretty sure its the first one
Step-by-step explanation:
So using the conversion of 1 metric ton to kg, we see that there are 1000 kg in 1 ton. Then we can divide 40 by 1000 to find the decimal:

Then to convert this decimal to a percentage, we must multiply by 100%:

So now we know that 40 kg is 4% of 1 ton.