Answer:
Step-by-step explanation:
another way to express 52+24 is 4(13+6)
Answer:
A I think
Step-by-step explanation:
Answer: it will take 2.5 hours for both people to meet after person B leaves.
Step-by-step explanation:
The distance between the house of person A and his cousin's house is 234 miles.
At the point where they meet, they would have travelled 234 miles.
Person A travelled at an average speed of 44 miles per hour.
Let t represent the time spent by Person A in travelling from his house to the point where they meet.
Distance = speed × time
Distance covered by person A would be
44 × t = 44t
One and half hours later, person B leaves his house to visit person A, travelling at an average speed of 62 miles per hour. This means that total time spent by person B in travelling to the point where they meet is (t - 0.5) hours. Distance covered would be
62(t - 0.5) = 62t - 31
Since the total distance covered is 234 miles, then
44t + 62t - 31 = 234
106t = 234 + 31 = 265
t = 265/106 = 2.5 hours
<span><span>The derivative is:
y= 4<span>(<span><span>x</span></span></span></span></span>³<span><span><span><span>−<span>x</span></span></span></span></span>²<span><span><span><span>+x+1</span>)</span><span>e</span></span></span>×<span><span><span>/</span></span><span><span>(<span><span>x</span></span></span></span></span>²<span><span><span><span>+1</span>)</span></span></span>²