Answer:
the height of the front doorstep is 12 cm
angle given is 15 degree
so, the length of the ramp wooden peice should be 44.7
mark me brainliest plsss
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C I believe the -2 part that was the one just looked it up on google XD hope it helped
This is exponential growth/decay type problem...
F=Ir^t, F=final value, I=initial value, r=rate, t=time, in this case I=1250 and r=(1-.045)=0.955 so
F=1250(.955)^t and we want to find t for when F=800
800=1250(.955)^t
.64=.955^t take the natural log of both sides...
ln.64=t ln.955
t=(ln.64)/ln.995
t≈9.69 weeks
t≈9.69 weeks (to nearest hundredth of a week)
