Answer:4th: 729 6th: 6561
Step-by-step explanation: Sorry, I’m not 100% sure but I will try to help out: :)
So 2nd term is 81 and you want the 4th and 6th term.
Common ratio is 3
I approached it like this:
81x3=243 (3rd Term)
243x3=729 (4th Term)
729x3=2187 (5th Term)
2187x3=6561 (6th Term)
So if this isn’t the correct way the only other way I can think to approach this is
81+3=84(3rd Term)
84+3=87(4th Term)
87+3=90(5th Term)
90+3=93(6th Term)
Hope this helps
Answer:
y = 13.8
Step-by-step explanation:
Plug in 7.2 for x in the first equation.
y = 1.5x + 3
y = (1.5)(7.2) + 3
Simplify. First, multiply, then add (following PEMDAS).
y = (1.5)(7.2) + 3
y = (10.8) + 3
y = 13.8
13.8 is your answer for y.
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Answer:
6.3 days
Step-by-step explanation:
The decay formula is
N(t) = N₀ exp(-kt)
where
N₀ = 45 g, original mass
N(t) = mass after time t, days
k = 0.1109, the decay constant.
At half life, N(t) = (1/2)*N₀. Therefore
1/2 = exp(-0.1109t)
Take natural log of each side.
ln(0.5) = -0.1109t
t = ln(0.5)/(-0.1109) = 6.25 days
Answer: 6.3 days (nearest tenth)
Answer:
Its a little hard...... .....
You would convert the percent into a decimal, which would be 0.00039296, then multiply it by 9, which is 0.00354564. To find the total, you would do 9 plus that, which is 9.00354564.