Solve the problem.
-If a rocket is propelled upward from ground level, its height in meters after $t$ seconds is given by $\mathrm{h}=-9.8 \mathrm{t}^{2}+117.6 \mathrm{t}$. During what interval of time will the rocket be higher than $343 \mathrm{~m}$ ?
A) $5

Question

Solve the problem.
-If a rocket is propelled upward from ground level, its height in meters after $t$ seconds is given by $\mathrm{h}=-9.8 \mathrm{t}^{2}+117.6 \mathrm{t}$. During what interval of time will the rocket be higher than $343 \mathrm{~m}$ ?
A) $5<\mathrm{t}<7$
B) $0<$ t $<5$
C) $10<\mathrm{t}<12$
D) $7<\mathrm{t}<10$

Quizplus · Accepted Answer

The rocket will be higher than $343 \mathrm{~m}$ when $-9.8 \mathrm{t}^{2}+117.6 \mathrm{t}>343$. Solving this inequality gives $5<\mathrm{t}<7$.

Solve the Problem ttt Seconds Is Given By h=−9.8t2+117.6t\mathrm{h}=-9.8 \mathrm{t}^{2}+117.6 \mathrm{t}h=−9.8t2+117.6t During What Interval of Time Will the Rocket Be

Solve the Problem $t$ Seconds Is Given By $\mathrm{h}=-9.8 \mathrm{t}^{2}+117.6 \mathrm{t}$ During What Interval of Time Will the Rocket Be