The equation whose roots are multiplied by 3 of those of 2x^2 + 3x – 1=0 is
1 answer:
Answer:
I have got the answer
Step-by-step explanation:
Let the roots of 2x² + 3x - 1 = 0 be a and
To find:
The quadratic equation whose roots are 3a
Solution:
See picture attahed
The rest of explanation is given in your previously asked question see there I have also answered it
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Answer:
Average speed in mph with which he goes to parent's place = 75 mph
Average speed with he comes back = 50 mph
Explanation:
Distance between Jamie's house and parent's house = 510 miles.
Let u be the average speed in mph with which he goes to their place.
We have the average speed of coming back = (u -25) mph
Total time of journey considering both ways = 17 hours.
Time taken to go their home = 510/u hours
Time taken for coming back = 510/(u-25) hours
So total time =
Equating both times we have
u = 75 mph or u =10 mph
If the average speed in mph with which he goes to their place = 75 mph, average speed with he comes back = 75-25 = 50 mph
If the average speed in mph with which he goes to their place = 75 mph, average speed with he comes back = 10-25 = -15 mph(Not possible)
So, Average speed in mph with which he goes to parent's place = 75 mph
Average speed with he comes back = 50 mph