Answer:
3 seconds
Step-by-step explanation:
when h=7 ft
-16t²+49t+4=7
-16t²+49t-3=0
16t²-49t+3=0
16t^2-48t-t+3=0
16t(t-3)-1(t-3)=0
(t-3)(16t-1)=0
t=3,t=1/16
t=1/16 seconds is the time when it just started.
so reqd. time=3 seconds.
Answer:
there isnt anything there but sure yes they are
Step-by-step explanation:
C) Y=5x+1
This is the answer because when your line is a perpendicular its the negative reciprocal so as you can see the slope of the given is 1/-5 which then you multiply by -1 which gives you 1/5 so you have to do the reciprocal of that which means floor it which gives you 5/1 and you divide that which gives you 5. Since you want the same y-intercept you just plug in 1 as your original equation.
