Answer:
97.2 m
Step-by-step explanation:
= 
= 19.4 m/s
Distance = speed x time = 19.4 m/s x 5 s = 97.2 m
Answer:
b
Step-by-step explanation:
The product of five and FOUR is twenty.
This problem can be represented through the following equation
A = A₀(1/2)^t/h
where
A-----------> is the amount of substance left after time t
A₀ ----------> is the original amount---------> 2 g
h-------------> is the half-life-----------> 8 days
for A=0.04 g
t=?
0.04 = 2(1/2)^t/8
0.02 = (1/2)^t/8
Take ln on both sides:
ln(0.02) = ln [(1/2)^t/8]
ln(0.02) = (t/8)(ln 1/2)
t = 8*ln(0.02)/ln(1/2)
t = 45.15 days
the answer is 45.15 days
13x-2. 2•5x=10x 2•-1=-2. 10x-2+3x=13x-2
