Answer:
82cm
Step-by-step explanation:
26+26+15+15=82
Answer:
See below
Step-by-step explanation:
1. B
2. C
3. C
4. A
5. D
6. B
7. A
8. D
Answer:
12.5
Step-by-step explanation:
According to the problem we start with 6000 gal of E10 which means there is 10% of ethanol in this 6000, with ths information we can calculate the amount of ethanol already in the mixture:
The relationship between ethanol and total fluid can be represented like this:
Based on this relationship we can build the one that we are looking for:
the total solution will be:
where X is the E5 solution volume
and the TotalEthanol would be:
where E5ethanol (5% Ethanol 95% Gasoline) would be:
Now replacing in the relationship we found before:
Solving for X:
We should mix 1500 gal of E5 to make an E9 mixture
Answer:
We can reject the null hypothesis. There is significant evidence that p<0.31 at α = 0.01
Step-by-step explanation:
To test the the claim p < 0.31, null and alternative hypotheses are:
: p=0.31
: p<0.31
For α = 0.01, one tailed test critical value is -2.33
For z=-3.36 , p value is ≈ 0.0004
Since p-value<significance level (0.0004<0.01), we can reject the null hypothesis. There is significant evidence that p<0.31 at α = 0.01