Answer:
19.4 feet
Step-by-step explanation:
When calculating distances using perpendicular angles, we use trig functions such as Sin, Cos, and Tan.
- Sine is defined in a perpendicular triangle as the ratio of the opposite side to the angle over the hypotenuse.
- Cosine is defined in a perpendicular triangle as the ratio of the adjacent side to the angle over the hypotenuse.
- Tangent is defined in a perpendicular triangle as the ratio of the opposite side over the adjacent side.
Because our angle and know side value are across from each other and we need to know the hypotenuse, we chose to use Sine.
We set up the equation
.
We isolate h by multiplying h across the equal sign and dividing sin (68) across as well. 
And finally we have
. We input to calculator.

See the attached picture below showing the shore with the boat out at sea and the position of the person.
Answer : 100 meters 2:35/mile or 1:36/km 2:49/mile or 1:45/km
200 meters 2:35/mile or 1:36/km 2:52/mile or 1:47/km
400 meters 2:54/mile or 1:48/km 3:12/mile or 1:59/km
800 meters 3:23/mile or 2:06/km 3:48/mile or 2:21/km
1,500 meters 3:41/mile or 2:17/km 4:07/mile or 2:34/km
1 mile 3:43/mile or 2:19/km 4:13/mile or 2:37/km
5K 4:04/mile or 2:31/km 4:34/mile or 2:50/km
10K 4:14/mile or 2:38/km 4:45/mile or 2:57/km
Half Marathon
(13.11 miles / 21.098 km) 4:27/mile or 2:46/km 4:58/mile or 3:05/km
Marathon
(26.22 miles / 42.195 km) 4:41/mile or 2:55/km 5:10/mile or 3:13/km
Step-by-step explanation: sorry if this is wromg :/ ( but if it is please add me as the brainist answer )
<span>What is 12x^2 +14x -6 factored
= (2x + 3)(6x - 2)
hope that helps
</span>
Answer:
The function of f(x) is 20 for the middle problem idk the others
Step-by-step explanation: