Answer:
`49 MPH
Step-by-step explanation:
If it took them 15 hours to go 735 miles, and you are trying to find the average rate, then divide the miles by the time (in hours), so for this specific problem, it would be 735 divided by 15 hours, and you will find the answer as 49. (MPH)
Answer:

then Radias equal to 5.5676
Step-by-step explanation:
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There's nothing to multiply. However, you can factor it to get (x + 4)(x - 4).
The Answer Is
X = 3
Hope this Helps
-2x^2=-15-5
-2x^2=-10
x^2=-5
X≠R i am not quite sure but...hope it helps :)