Find the measure of the indicated angle.

90°

Step-by-step explanation:

∠? = 86°

Step-by-step explanation:

The two dashes on the sides of the triangle tell us that this is an isosceles triangle. An isosceles triangle has 2 congruent sides and one side that is different. The same goes for its angles. The angle opposite to these same sides are also the same. So the angle across from ∠47 is also 47°.

All the angles in a triangle add up to 180°, so all you have to do to find ∠? is to subtract 47 x 2 from 180:

180 - 47 - 47 = 86°

Hope this helps! Best of luck <3

∠cbe and ∠deb are same-side interior angles.

i took the test

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.