A model rocket is launched from the ground. The height, s, of the rocket above the ground at time t seconds after it is launched can be found by the formula s=-161² +69t. Find how long it will take for the rocket to reach a height of 72 feet. seconds (Round to two decimal places as needed. Use a comma to separate answers as needed.)
A model rocket is launched from the ground. The height, s, of the rocket above the ground at time t seconds after it is launched can be found by the formula s=-161² +69t. Find how long it will take for the rocket to reach a height of 72 feet. seconds (Round to two decimal places as needed. Use a comma to separate answers as needed.)
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter12: Quadratic Functions
Section12.6: Solving Problems Involving Quadratic Equations
Problem 13P
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![A model rocket is launched from the ground. The height, s, of the rocket above the ground at time t seconds after it is launched can be found by the formula
s=-161 +69t. Find how long it will take for the rocket to reach a height of 72 feet.
S=
(...)
seconds
(Round to two decimal places as needed. Use a comma to separate answers as needed.)
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Transcribed Image Text:A model rocket is launched from the ground. The height, s, of the rocket above the ground at time t seconds after it is launched can be found by the formula
s=-161 +69t. Find how long it will take for the rocket to reach a height of 72 feet.
S=
(...)
seconds
(Round to two decimal places as needed. Use a comma to separate answers as needed.)
nts
Librar
Success
Help me solve this
View an example Ask my instructor
Clear all
Check answer
36°F
Sunny
▬
ĐỘN
F3
A
7
JL
N
2
W
S
alt
X
#
3
E
D
с
F4
$
4
R
F
FS
V
%
5
T
G
FG
A
6
B
Y
H
&
7
N
(DELL)
FB
U
J
★
8
F9
00
-
M
prt sc
F10
D
K
160-
O
V
alt
home
)
O
L
F11
end
P
F12
:
ctrl
;
B
insert
[
+ 11
=
?
1
"
O
delete
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