X is equal to 30 (vertically opposite angles)
y=180-50
=130 degrees (angles in a straight line equal to 180)
z=180-130-30 (angle sum of a triangle equal to 180)
z=20 degrees
Answer:
a=8
Step-by-step explanation:
-5(a+3)=-55
So we multiply -5 times a and 3 so we get:
-5a-15=-55
+15 +15
____________-
-5a=-40
÷-5 ÷-5
____________
a=8
Hope this helped :D
The answer to the question mentioned above is "the mean" such as the whole sentence will become "The horizontal value at which the highest point of a variable's normal curve is also the MEAN of the variable". This is the answer.
For The first question, the answer is 6.
For the 2nd question, the answer is 127
The solution is on the picture