Answer:
they saved the same amount of money each month
Step-by-step explanation:
Answer: I believe it is yellow star?
Step-by-step explanation:
Hello there,
For problem one
The mile is an appropriate unit to measure the distance run over a one-week period.
For problem two
The pound is an appropriate unit to measure the weight of a bag of sugar.
For problem three
The yard is an appropriate unit to measure the distance run on a football field.
Hope this helps!
Multiply the original DE by xy:
xy2(1+x2y4+1−−−−−−−√)dx+2x2ydy=0(1)
Let v=xy2, so that dv=y2dx+2xydy. Then (1) becomes
x(y2dx+2xydy)+xy2x2y4+1−−−−−−−√dxxdv+vv2+1−−−−−√dx=0=0
This final equation is easily recognized as separable:
dxxln|x|+CKxvKx2y2−1K2x4y4−2Kx2y2y2=−dvvv2+1−−−−−√=ln∣∣∣v2+1−−−−−√+1v∣∣∣=v2+1−−−−−√+1=x2y4+1−−−−−−−√=x2y4=2KK2x2−1integrate both sides
