Use the rule of 72 for the monthly compound:
About 10.3 years
Answer: ![x^{10}](https://tex.z-dn.net/?f=x%5E%7B10%7D)
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Answer:
After 8 hrs both candles would've burned out completely, so they'll, more or less, be at the same height.
Answer:
She goes from 4 to -4 west which is 8 blocks west
Then she goes south from +2 to -2 on the y axis which is 4 blocks south
See the attached figure to better understand the problem
we know that
1) First way to find the value of ain the triangle ABC
<span>applying the Pythagorean theorem
AC</span>²=AB²+BC²--------> BC²=AC²-AB²-----> BC²=25²-15²-----> BC²=625-225
BC²=400--------> BC=20 units
a=BC
a=20 units
2) Second way to find the value of a
in the triangle ABD
AB²=AD²+BD²--------> BD²=AB²-AD²-----> BD²=15²-9²---> BD²=144
BD=12 units
in the triangle BDC
a=BC
BC²=BD²+DC²-----> 12²+16²----> 144+256------> BC²=400
BC=20 units
a=20 units