Answer:
48 feet
Step-by-step explanation:
At a particular time, objects and their shadows are proportionate.
Therefore, in figure,
AB/FD = BC/DE --- (1)
where AB is the height of the lighthouse, BC, its shadow and FD is the height of Zara and DE is her shadow.
From the given information,
BC = 36 feet
FD = 4 feet and DE = 3 feet
(1) becomes
AB/4 = 36/3
AB = 12
AB = 48
Hence, the height of the lighthouse is 48 feet.
Answer:
26
Step-by-step explanation:
f(x)=x^2+5x g(x)=5‒x
f(3)=3^2+5(3) g(3)=5‒3
f(3)=9+15 g(3)=2
f(3)=24
f(3)+g(3)=24+2
=26
i think it is easy to understand &i hope it helps you