Mean is average
triangle has 3 sides
mean of its sides is
if the sides are a,b,c meause then mean of the sides is (a+b+c)/3=mean=18
perimiter=a+b+c
therefor
perimiter/3=18
multiply both sides by 3
perimiter=54 yardds
F(x)=x2+4=2*2+4=4+4=8 when x=2
f(x)=x2+4=0*2+4=4 when x=0
f(x)=x2+4=1*2+4=6 when x=1
Have a nice day!!! ^^
Unable to factor... no multiples of 1 can equal 4.
Sorry if this did not help.
The answer is -76.1 meters.
The submarine elevation before rising is -203 meters (it is negative because it is under the sea level which has 0 elevation): d₁ = -203 m
After the first rising, it moved 64.5 m: l₁ = 4.3 · 15 = 64.5 m
After the second rising, it moved 62.4 m: l₂ = 5.2 · 12 = 62.4 m
So, to calculate the elevation of the submarine after rising (d₂), we will add (because it is not going deeper, it rises toward the elevation of 0) two movements to the elevation before rising:
d₂ = d₁ - (l₁ + l₂) = -203 + (64.5 + 62.4) = -203 + 126.9 = -203 + 126.9 = -76.1.
