3 years ago

What is the value if X 3x/7 - 11 = 16

Mathematics

1 answer:

slamgirl [31]3 years ago

6 0

Answer:

Step-by-step explanation:

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A toy rocket is shot vertically into the air from a launching pad 5 feel above the ground with an initial velocity of 80 feet pe

yawa3891 [41]

$h(t)=-16t^2+80t+5\\\\t_{max}-time\ for\ a\ maximum\ height\\\\t_{max}=- \frac{80}{2\cdot(-16)} = \frac{80}{32} =2.5\ [s]\\\\h_{max}-the\ maximum\ height\ above\ the\ ground\\\\h_{max}=h(2.5)=-16\cdot2.5^2+80\cdot2.5+5=-16\cdot6.25+200+5=\\.\ \ \ \ \ \ =-100+205=105\\\\h_{max\ rocket}-the\ maximum\ height\ of\ a\ toy\ rocket\\\\h_{max\ rocket}=105-5=100\ [ft]\\\\Ans.\ t_{max}=2.5\ second,\ \ h_{max\ rocket}=100\ feet.$