Answer:
270.06
How to solve:
Write a function:
f(t)=270(1+0.001)^{t/10}
23 years→23/10→2.3 decades
Plug in t=2.3
f(2.3)=270(1+0.001)^{2.3/10}
=270.062076106
≈270.06
Answer: 15 feet
Step-by-step explanation:
Hi, since the situation forms a right triangle (see attachment) we have to apply the next trigonometric function.
Tan α = opposite side / adjacent side
Where α is the angle of elevation to the sun, , the opposite side (x) is the height of the tree, and the adjacent side is the length of the shadow.
Replacing with the values given:
Tan 31 = x /25
Tan 31 (25) =x
x = 15 feet
Feel free to ask for more if needed or if you did not understand something.
The interest earned in 5 years would be $270
<u>Explanation:</u>
Given:
Principal, P = $1800
Rate of interest, r = 3%
Time, t = 5 years
Simple interest, I = ?
We know,

On substituting the value we get

Therefore, interest earned in 5 years would be $270
Answer:
The answer is <u><em>-0.44</em></u>.
Hope that helps. x