Answer:
to simplify this problem the answer would be 12sqrt5 - 6sqrt2 but I cannot explain it.
Step-by-step explanation:
Answer:2/8
Step-by-step explanation:
do top and bottom multiply
The answer is A. Here's how you get it. Law of cosines here looks like this:
17^2 = 22^2 + 30^3 - [2(22)(30)cosA]; which simplifies to 289=484+900-1320(cosA). Doing that math gives you 289 = 1384 - 1320(cosA), and -1095 = -1320(cosA). Divide both sides by -1320 to get
.829545 = cos A. Now use the inverse cosine on your calculator to get the missing angle measure.
Answer:
Step-by-step explanation:
We can form a right triangle and use trigonometry for a right triangle to solve this. The ground distance the plane travels is its displacement in the x-direction. The 2500 meters the plane moves through represents the hypotenuse of right triangle, and the ground distance is the adjacent leg of the 
angle. Therefore, we set up the following equation:
, where 
is the ground distance.
Solving, we get 
.
For many things like putting flooring in or like calculating how much liquid can pass threw a pipe
