Step-by-step explanation:
Let θ be the angle of depression i.e the angle between the horizontal and the observer's line of sight.
tanθ= (Height of the light house)/(Horizontal distance of ship from the base of light house)
∴tanθ=88/1532=0.0574
∴θ=tan−1(0.0574)=3.290(2dp)
Answer:
2166.53
Step-by-step explanation:
Price x 1.0822 = 1067.0492 <Price with tax
P= PV x i / 1- (1+i)^-n
^ x (identical monthly payments for 5 years aka 12 x 5)
average cost for electricity x (365 x years aka 11)
cost for maintenance x 11
Add all 3 answers
=2166.53
Answer: 1.6464
Step-by-step explanation: I think.
We just need to complete the square for the x terms
gropu x terms
x^2-4x
take 1/2 of linear coefient and square it
-4/2=-2, (-2)^2=4
x^2-4x+4
factor
(x-2)^2
h=2
Answer:
13/30
Step-by-step explanation:
26 / 60 because there's 60 mins in an hour
and you can divide both the numerator and the denominator by 2 to get:
13/30, which is the simplest form.
