Here we go ~
The air plane descends 15 feels every 1.45 seconds, so it's unit rate is :
Now we have to calculate the descent in 3.5 minutes ~
So, the airplane descends 2172.41 feels in three and a half minutes ~
Pls, Help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1 answer:
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Answer:
x = ±
Step-by-step explanation:
9x² - 4 = 0 ( add 4 to both sides )
9x² = 4 ( divide both sides by 9 )
x² = ( take the square root of both sides )
x = ± = ±
= ±