At a fixed interest rate, an investment of $4000 earns $210. How much do you need to invest at the same rate to earn $336?
1 answer:
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We have .
To find inverse function we substitute x with
and vice-versa to get
Now solve for . Note that I will use
instead.
So we find that .
Hope this helps.
<u>The surface area of the region he will paint is 900 sq.ft.</u>
<u>Step-by-step explanation:</u>
Cubical room measures - 15 ft
Chaz want to paint only the walls of room
Surface of painting region means Lateral surface area (excluding top and bottom)
Lateral surface area of cube =
⇒ 4 * 15 *15
⇒ 900 sq.ft
<u> The surface area of the region he will paint is 900 sq.ft.</u>