Solve to three significant digits:
The cube root of (4t+3) = 8.15
2006-12-30 17:36:58 · 11 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Cube both sides:
4t + 3 = (8.15)³ = 541.343375
Subtract 3 from both sides:
4t = 538.343375
Divide both sides by 4:
t = 134.58584375
2006-12-30 17:39:53 · answer #1 · answered by Jim Burnell 6 · 2⤊ 2⤋
(4t+3)^(1/3) = 8.15 cube both sides
4t+3=541.343375 subtract 3 from each side
4t=538.343375 divide both sides by 4
t=134.58584375 round to 3 digits
t=135
2006-12-31 03:17:04 · answer #2 · answered by yupchagee 7 · 1⤊ 0⤋
Cube both sides, subtract three, divide by four.
Three significant figures makes 134.
2006-12-31 01:50:59 · answer #3 · answered by James M 1 · 0⤊ 0⤋
(4t + 3)^(1/3) = 8.15
4t + 3 = 541.343
4t = 538.343
t = 134.586
2006-12-31 01:44:03 · answer #4 · answered by Anonymous · 0⤊ 0⤋
(4t+3)=8.15 = 4t+3
4t = 8.15 - 3 = 5.15
t = 5.15 divided by 4 = 1.2875 or 1.288 or 1.29
2006-12-31 02:53:32 · answer #5 · answered by Ross 1 · 0⤊ 1⤋
134.586, take 8.15 to the third power, subtract 3, divide by 4 and voila! 134.586
2006-12-31 01:41:31 · answer #6 · answered by smokinjoexxiii 2 · 0⤊ 0⤋
This is the forth math problem you're asking about now. Are you just getting us to do all of your homework for you?
Get someone to actually sit down and help you with this!
2006-12-31 01:48:40 · answer #7 · answered by Andrea Z 2 · 1⤊ 0⤋
Did this problem have a practical purpose or are you just making stuff up? Can't you do this yourself on a calculator?
2006-12-31 01:52:28 · answer #8 · answered by christopher_az 2 · 0⤊ 1⤋
Wow. Math has changed!
2006-12-31 01:44:11 · answer #9 · answered by Jared L 4 · 0⤊ 1⤋
28.75
2006-12-31 01:57:19 · answer #10 · answered by Tylene W 1 · 0⤊ 0⤋