Answer:
vvvvvvvvvvvvvv
Step-by-step explanation:
Answer:
D. 55%
Step-by-step explanation:
The error range ± 9% means that the range is 9% below 62% or 9% above 62%.
The range is:
(62% - 9%) to (62% + 9%)
53% to 71%.
The only answer between 53% and 71% is 55%.
Answers A, B, C are all greater than 71%.
BEDMAS
brakcets: 6/(18) *180
now just calculate from left to right:
1/3 *180 = 60
For this..all we are doing is adding (w-2) leaving a few options for answers
2(w-2) +2(w-2)
w+w+w+w-2-2-2-2
4(w-2)