Answer:
Step-by-step explanation:
1.3x-2.39=5.76x+4.74
+2.39 +2.39
_________________
1.3x=5.76x+7.13
-5.76x -5.76x
______________
-4.46x=7.13
/-4.46 /-4.46
__________
x=-1.6
D
1. Jill had the following scores on her math quizzes 20, 40, 40, 40, 60, 60, 60, 60, 80, 80, 80, 80, 100.
amm1812
Answer:
a is 800
b is 13
c is 61.5
Step-by-step explanation:
for a you add all of the given data together
b you count how many data points there are
c you get the answer from the a and divided by 13
If you continue the top ray down to the lower our the two lines you create an angle that it's an exterior angle of a triangle and it's also a corresponding angle to the 110° angle. since corresponding angles are congruent this angles is also 110°. this angle makes a linear pair with the angle to it left, the lower right angle on the triangle. linear pairs add to 180° so the angle has to be 70°. the lower left angle of this triangle is given as 37°. since the 3 angles of a triangle must add to 180° , the top angle has to be 180-(70+37)=73. since the top angle of the triangle makes a linear pair with the angle in question, our angle has to be 180-73=107°
