Answer:
C
Step-by-step explanation:
the sum of the exterior angles of a polygon = 360°
sum the 4 exterior angles and equate to 360
8x + 9x + 5 + 5x + 4 + 9x + 3 = 360 , that is
31x + 12 = 360 ( subtract 12 from both sides )
31x = 148 ( divide both sides by 31 )
x ≈ 11.23 ( to 2 dec. places )
then exterior angle at B is
9x + 3 = 9(11.23) + 3 ≈ 104° → C
Answer:
Its 8
Step-by-step explanation:
3x+10+2x=50
3x+2x=5x
5x+10=50
5x+10-10=50-10
5x=40
x=8
5x8=40
Answer:
18
Step-by-step explanation:
turn 3/8 into a decimal, .375, then multiply by 48
Chance of getting 4 heads in a row is (1/2)^4=1/16. So it should take 16 tries to likely get 4 heads in a row. Now to find amount of coin tosses it would be 16 x 4 = 64 coin tosses.
Answer:0.75
Step-by-step explanation:
n/1=9/12
Cross multiply
12n=9
Divide through
n=0.75