In the figure, we can see that the indicated distance of the sailboat from the lighthouse is the side of the triangle opposite the right angle. Therefore, we are looking for the length of the hypotenuse of the triangle.
To get the hypotenuse, we will use the Pythagorean Theorem.

where c = hypotenuse and "a" and "b" are the legs of the triangle.
Given in the figure are the legs of the triangle which are 50 km and 130 km. Let's plug these into the equation above.

Then, solve.
Square each leg of the triangle.

Add the numbers under the radical sign.

Get the square root of 19, 400.

Therefore, the distance of the sailboat from the lighthouse is approximately 139.3 km.
In math, properties demonstrate general rules that are used in calculations. The most commonly used properties in day-to-day math are the properties of addition and multiplication. The commutative property of addition, for example, states that no matter how you order the numbers when adding, the result is the same.
2.3% you need to divide then subtract cross and you get the answer
The equations of the function is
Y=2x+ 5y
Y<(less than or equal to) 36
X+y>( greater than or equal to) 3
So to find one variable in the equation such as finding the amount of roses or carnations, you would have to do system of equations. Some ways of using system of equations is to use substitution, elimination, or graphing.