The approximate surface area of the sphere is 94.2 squared
It's B. the sides of a square have to be equal, so you can check by squaring any of the options and seeing which ones equal 225. 15 is the square root of 225. this can be expressed as 15=sqrt225
Answer:
Step-by-step explanation:
Answer: SECOND OPTION
Step-by-step explanation:
You can solve the system of equations by the method of substitution:
- You must susbtitute the second equation into the first equation and solve or x:

- Now, you must susbtitute the value of x obtained above into the second equation to calculate the value of y. Then, you have:

Therefore, you obtain:
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If the value was initially v, then after a year it is 0.75v, after 2 years it’s 0.75²v, and so on. So after 6 years it’s 0.75⁶v.
So 0.75⁶v=7500, and v=7500/0.75⁶=$42,139.92 approximately. This is close to $42,140.