This is a tough one. What we are looking for is how long (how much time) was spent in the mountains. So we are looking for t, time. 3 hours 48 minutes is 3.8 hours. Both have to be in terms of one or the other, you cant have unknown mountain time and plain time, so let's say that mountain time is t. That means that plain time is 3.8-t. Multiply the rates times the times for each and add them together and set them equal to the total distance. 90(3.8-t)+37.5t=300. Solve for t. The time spent in the mountains was 48 minutes
Answer:
C :She is incorrect because she should have squared each leg length and then found the sum
The answer would be 3n^2 + 2.
This can be found/proven by replacing "n" with term number (1,2,3,4...), then solving to get the final number. For example 3 * 1^2 + 2. You would first do 1^2, which is 1. Next, you would multiply 1 by 3, to get 3. Finally, you'd and the 2 to get 5. 5 is the 1st term, and you can use this same equation to get the rest of the terms you need.
I hope this helps!
Answer: Its factored form will be

Step-by-step explanation:
Since we have given that

So, we need to factor ,

Now,

Now, by hit and trial method, we put n=1,


So, n-1 is also factor of p(n).
Now,

So, its factored form will be
