Answer:
a. The tree is 30 feet tall.
b. The tree is 24 feet taller than Frank.
Step-by-step explanation:
Since the shadow of the tree is 20 feet and the shadow of Frank is 4 feet, 20+4 is 24. 24+6 is 30, so the tree is 30 feet tall and the tree is 24 feet taller than Frank.
We are going to continue the process; this time we are going to evaluate both functions at x=2.4:
For our first function:
For our second function:
To the nearest tenth:
We can conclude that the positive solution of our functions to the nearest tenth is
.
<h3>
Answer: $655,430.67</h3>
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Work Shown:
The home's value in 2020 is approximately $655,430.67 assuming that the rate of inflation is kept at 4.5% per year.
Note that for the r value, I used the decimal form of 4.5% (so you'll move the decimal point 2 spots to the left).
Also, the timespan from 1990 to 2020 is 2020-1990 = 30 years, which is why I used this for the t value.
Y = 3x - 4 . . . (1)
9x - 3y = 14 . .(2)
Putting (1) into (2) gives
9x - 3(3x - 4) = 14
9x - 9x + 12 = 14
12 = 14
Therefore, there is no solution.