The volume for a sphere is 4/3Pi(r^3), or
4/3 • 3.14 (Pi estimated) • (r • r • r).
Pi is 3.14 estimated, and r is the radius (from a curve to the midpoint of a circle).
I hope this helps!
Answer:
Ill help! If there is anything you need help with? lol
Step-by-step explanation:
I can't imagine why the variable in the exponent isn't 'n'.
To me, that's the only way this makes sense, and I'm
going to handle it as if the exponent is (n - 1) .
First term: n = 1
A(1) = -2 · 5¹⁻¹ = -2 · 5⁰ = -2 · 1 = -2 .
Fourth term: n = 4
A(4) = -2 · 5⁴⁻¹ = -2 · 5³ = -2 · 125 = -250 .
Eighth term: n = 8
A(8) = -2 · 5⁸⁻¹ = -2 · 5⁷ = -2 · 78,125 = -156,250 .
The first choice on the list looks like the correct one.
Answer:
How much money do they have?
Step-by-step explanation:
Answer:
t = 13.1576 years
Step-by-step explanation:
The situation can be modeled as
P = Po.(1-r)^t
Where
t is the years transcurred
Po is the initial amount
r is the rate of change
Po = 40000
r = 10% equivalent to 0.1
Now
A quarter of the original amount
(1/4)*Po = Po.(1-r)^t
(1/4) = (0.9)^t
t = 13.1576
Please, see attached picture
