f(x) = 250(0.5)^x, x = 3
2006-12-03 02:12:56 · 6 answers · asked by mixed 1 in Science & Mathematics ➔ Mathematics
Hint
.5 raised to the power of 3 is 0.125
Then f(3)=250 (.125)=31.25
2006-12-03 02:15:54 · answer #1 · answered by Edward 7 · 0⤊ 0⤋
All you have to do is plug in x = 3, to get
f(3) = 250(0.5)^3
With a lack of a calculator, I'm going to convert that into a fraction and solve from there.
f(3) = 250(1/2)^3
f(3) = 250(1/8)
f(3) = 250/8 = 125/4
2006-12-03 10:18:15 · answer #2 · answered by Puggy 7 · 0⤊ 0⤋
f(x) = 250(0.5)^x where x = 3
= 250*.125
= 31.25
2006-12-03 10:17:36 · answer #3 · answered by mathlete1 3 · 0⤊ 0⤋
.5 to the 3rd is .125
250 x .125 = 31.25
DON'T DO THIS 250 x .5 = 125
125 to the 3rd is 1953125. Wrong, wrong, wrong
2006-12-03 10:20:03 · answer #4 · answered by Karnak 3 · 0⤊ 0⤋
f(x) = 250(0.5)^x, x = 3
f(x) = 250(0.125) = 31.25
2006-12-03 10:18:31 · answer #5 · answered by Xiangwei Xi 3 · 0⤊ 0⤋
0.5 cubed is 0.125
250 x 0.125 = 31.25
f(x)=31.25
2006-12-03 10:25:23 · answer #6 · answered by flying peanuts 3 · 0⤊ 0⤋