Since supplementary angles are angles that equal to 180, you first need to subtract 40 from 180 to find out what the equation equals. This is the layout of the equation. 140=4x+20. Next you subtract 20 from each side, 120=4x then you divide by 4 four, x=30.
<u><em>The missing angle is 31 degrees.</em></u>
You can know this because the sum of the measures of a triangle is always 180.
All you have to do is add up the known measure of the triangle and subract that from 180
Answer:
I, II, and III are true.
Step-by-step explanation:
I. A correlation of -0.8 (negative) between weight and reliability means that the heavier the car, the less reliable it will be. Therefore, the statement is true.
II. A correlation of 0.6 (positive) between weight and maintenance means that the heavier the car, the higher the costs will be. Therefore, the statement is true.
III. Since the absolute value of the correlation between weight and reliability is higher than the absolute value of the correlation between weight and maintenance cost (0.8 > 0.6), weight is more strongly related to reliability than to maintenance cost. The statement is true.
SAS, because of the congruence
For number 1. circle 4/5, 18/25, and 155/200
number 3 is. 7/12 so it is higher than one half!
number 4 is 10/20 so it is equal to 1/2
number 5 is 5/12 so it is smaller than 1/2