For #1
you would do
8 + 8 + 5 + 5 = 26
so they use 26 inches of ribbon
for #2
since there is 8 sides and each side is 3 feet we multiply
8 x 3 = 24
so the perimeter of her collage room is 24 feet
for #3
its cut off...
Answer is in the file below
tinyurl.com/wpazsebu
Answer:
(x+2)^2=-1
Step-by-step explanation:
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8 boxes is 100%, 6 out of 8 is 6/8 x 100% = 75%
Exponential decay is a very common process especially when we are talking about radioactive materials. So, there is already a common formula for this type of behavior which is written below:
A = Pe^-rt
where
A is the amount left after time t
P is the initial amount at t=0
r is the rate
Substituting the values,
A = (780 g)(e^-0.163*16)
A = 57.5 g