Patsy by 8 yards of ribbon. She cuts it into 16 equal pieces. How many inches long is each piece?
1 answer:
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Answer:
Step-by-step explanation:
Let denote the half life of our substance
to be our time,
is mass at time t and
as initial mass. Our half life equation can be expressed as:
from which we can obtained mass at any given time.
b. From our equation above,
we can convert our t into mins as
We then substitute value into the equation
Hence mass after 4hrs is
c. We can set our final mass to then substitute in the equation
. Substitute
Hence time until mass is 109.83 minutes
9514 1404 393
Answer:
10.8 miles
Step-by-step explanation:
The distance between (-3, -4) and (3, 5) can be found using the distance formula.
d = √((x2 -x1)^2 +(y2 -y1)^2)
d = √((3 -(-3))^2 +(5 -(-4))^2) = √(6^2 +9^2) = √117
d ≈ 10.8
It is about 10.8 miles from the mall to the park.
