You said that (xy) = 16, and (x+y) = 4 .
From the second equation you can get [ x = 4 - y ],
then substitude that for 'x' in the first equation, and
finally, rearrange the first equation to read
<u>x² - 4x + 16 = 0</u>
Don't even try to factor that quadratic equation. Go straight
to the quadratic formula, and the two solutions you find are ...
<em>x = 2 + i 2√3</em>
and
<em>x = 2 - i 2√3</em> .
Those are the two number that do what you want.
There are no <u>real</u> numbers that can do it.
Answer:
Distance between the national parks is 275 miles.
Step-by-step explanation:
We have given,
Average speed of train = 55 miles per hour
Total time taken = 5 hours
We need to find the distance between the national park.
i.e Distance = Average speed × time taken
Distance = 55 × 5
Distance = 275 miles
Hence the distance between the national parks is 275 miles.
Answer:
reject the null hypothesis. There is sufficient evidence to support the claim that the cans of diet soda have mean weights that are lower than the mean weight for the regular soda.
Step-by-step explanation:
I hope this helps, I'm in 11th grade and I'm pretty sure the answer is correct. Good Luck!!!
Answer:
5 times
Step-by-step explanation:
have a good day/night :)
For this question, all you have to do is subtract 6 from 10 to get 4. 4 + 6 is 10. z = 4.