Answer:
13. 360 14. 1080 15. x=53 16. x=135
Step-by-step explanation:
Equation: (n-2)*180
For 13. all angles in a a quadrilateral add up to 360
For 14. 8 sides-2=6. 180*6=1080 degrees
For 15. 15+155+137=307. 360-307=53. x=53 degrees
For 16. 6 sides-2=4. 4*180=720. 90*2=180. 720-180=540. 540/4=135.
x=135
Answer:
130
Step-by-step explanation:
Just do 4x28+18
Answer:
The probability that if a person is chosen at random has run to red light in the last year is 60%.
Step-by-step explanation:
Since a group of people were asked if they had run a red light in the last year, and 456 responded "yes", and 304 responded "no", to find the probability that if a person is chosen at random, they have run a red light in the last year, the following calculation must be performed:
456 + 304 = 760
760 = 100
456 = X
456 x 100/760 = X
45600/760 = X
60 = X
Therefore, the probability that if a person is chosen at random has run to red light in the last year is 60%.
X=71°
X-21=50°
X-12=59°
Add all of the angle measurements to equal 180 so the equation would look like x+x-21+x-12=180. Add all like terms and you’ll then get 3x-33=180. Next add 33 on both sides to get x by itself and then you’ll get 3x= 213. Next divide 3 on both sides to isolate x and you’ll get x=71. Substitute all values of x for 71.