Answer:
n = 20.
Step-by-step explanation:
The external angles of a polygon add up to 360 degrees. So:
30 + 42 + 16(n - 2) = 360 where n is the number of sides of the polygon.
16n + 30 + 42 - 32 = 360
16n + 40 = 360
16n = 320
n = 20.
Answer:
Percentage Error in counting the marbles in the jar is 39.72%
Step-by-step explanation:
Estimated marbles in the jar = 44
Actual marbles in the jar = 73
⇒Error in Marbles = Number of actual Marbles - Estimated marbles
= 73 - 44 = 29
So, the error in counting marbles in the jar is 29.
Now,
=
or, Percentage Error = 39.72%
Hence, the Percentage Error in counting the marbles in the jar is 39.72%
B. X= -5
C. X= 2
D. X= 10
D. X=10 because (10-3)(10-5)=35 and 10-3 =7 while 10-5 =5 7x5=35