Answer:
first option use your calculator man
Answer:
59.66 cm
Step-by-step explanation:
Circumference of a circle = 2πr
π = 3.14
r = radius = 9.5
2 x 3.14 x 9.5 = 59.66 cm
Represent the decay of the substance by the equation
where
m₀ = initial mass
k = decay constant
t = time, years
Because the half life is 18 years, therefore
When m(t) = 63% of m₀, obtain
Answer:
The substance decays to 63% of its original amount in 12 years.
Answer:
2x-3=-6
3x-1=-3
Step-by-step explanation:
1 3/4 hours of work equates to $18.375 so $18.38.
2 1/3 hours of work equates to $24.50.
1 5/12 hours of work equates to $14.875 so $14.88
Add all values $18.38+$24.50+$14.88 = $57.76
Doug has a total amount of earnings which = $57.76, good luck!