There are several methods of rounding, but in this case the 'best' one is probably to round up. Rounding down suggests that Kathy actually ran faster.
<span>26.2 (mile) * 6.2 (minutes/mile) = 162.44 rounded up => 163 minutes.</span>
Answer:
1) The student didn't add copper sulfate but instead he added calcium carbonate.
2) The heated solution should be left to get bigger crystals and should not be instantly allowed to evaporate.
3) He should use copper carbonate not calcium carbonate.
4) Sulfuric acid was added instead of hydrochloric acid.
5) Add solid excessively so that all of the acid is retained.
6) Filter the solution to remove unreacted solid.
7) Heat gently, so the crystals will start to appear.
Answer:
34^12 - which is approximately 2.386420684^18
Step-by-step explanation:
By the laws of indices:
(34^2)^6
= 34^(2*6)
= 34^12
- which is approximately 2.386420684^18
If i=imaginary number=√-1 then
√-1 times 237
if you want to simplify as in make it a whole number without the complex part then square the number
(237√-1)^2=(237)^2 times (√-1)^2=56169 times -1=-56169