Answer:
Step-by-step explanation:
pythagorean theorum: a^2 + b^2 = c^2
40 x40 = 1600
30 x 30=900
1600+900= 2500
Square root of 2500 =50
1. $350*1.08=$378
2. $378*1.08=$408.24
3. $408.24*1.08=$440.899
4. $440.889*1.08=$476.17
5. $476.17*1.08=$514.26
Ellie need to wait 5 years. She will earn $14.26 after 5 years for own needs.
Since the cotangent function is defined as

we have that the cotangent equals zero at
, because we have

So, the limit simply becomes

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