50 points and brainliest! Help ASAP! A source of laser light sends rays AB and AC toward two opposite walls of a hall. The light rays strike the walls at points B and C, as shown below: What is the distance between the walls? A) 80 m B) 180 m C) 90 m D) 100 m

100 m

Step-by-step explanation:

The sum of the bases of the two triangles will be your answer.

Use the 30-60-90 formula and the 45-45-90 formula:

The triangle on the left is a 30-60-90 triangle, meaning those are the three angles. The formula for such a triangle is that the side opposite the 30 degree angle is x, the side opposite the 60 degree angle is x, and the side opposite the 90 degree angle is 2x.

Since we know that the side opposite the 90 degree angle is 40, we can plug that in: 40 = 2x which means that x = 20. There is the first base.

The triangle on the right is a 45-45-90 triangle, meaning that those are the three angles. The formula for such a triangle is that the side opposite the 45 degree angles are both x, and the side opposite the 90 degree angle is x.

Since we know that the side opposite one of the 45 degree angles is 80, we can assume that the side opposite the other 45 degree angle is also 80. There is our second base.

20 + 80 = 100 meters

the difference between a number and 5 is -2.

step-by-step explanation:

notice that the equation you are given has -2 (negative 2) on the right side, not 2. when you subtract 5 from a number n, you are finding the difference between the number and 5.

the difference between a number and 5 is -2.

what are the things "represented below"?

step-by-step explanation:

nobody can if you dont give the choices