Two boats start their journey from the same point A and travel along directions AC and AD, as shown What is the distance, CD, between the boats?

0 213.2 ft
O 115.5 ft
0 230.9 ft
0 346.4 ft​

Step-by-step explanation:

In all 30-60-90 triangles, the side lengths are in a ratio , where is the hypotenuse of the triangle and is the side opposite to the 30 degree angle.

In , the side marked as 300 ft, AB, is the side opposite to the 30 degree angle. Therefore, BD must equal .

To find CD, we can subtract BC from BD. Notice that is also a 30-60-90 triangle. Therefore, since BC is the side opposite to the 30 degree angle, BC must equal

Thus, the length of CD is equal to:

soo this can be solve by using the formula:

f = p( 1 + i)^ n

where f is the future profit

p is the initial profit

i is the percent increase

n is the number of years

a . f = 30000 ( 1.05)^n

b. f = 30000 ( 1.05)^15

f = $62,368