Answer:
8931
Step-by-step explanation:
1 1 1
21 x 18 x 13 = 4914
16 x (18x13) = 3744
13 x 21 = 273
-------
8931
Hope this helps :|
(I am not 100% Sure, you should double check)
The full sequence from 3 to 21 is...
3, 5, 7, 9, 11, 13, 15, 17, 19, 21
Now first add 3 and 5 to get 8. Then 8 and 7 to get 15. After, add 15 and 9 to get 24 and furthermore.
(24+11=35 --> 35+13=48 --> 48+15=63 --> 63+17=80 --> 80+19=99 --> 99+21=120)
So I believe the sum of the sequence is 120
I hope this helps!
Answer:
1060 feet
Step-by-step explanation:
A boat looks up at a light house at an angle of elevation of 23.If the top of the lighthouse is 450 feet higher than sea level, what is the horizontal distance from the boat to shore?
We solve the above question using the Trigonometric function of Tangent
tan x = Opposite/Adjacent
x = Angle of Elevation = 23°
Opposite = 450 feet
Adjacent = The horizontal distance from the boat to shore = y
Hence,
tan 23 = 450/y
Cross Multiply
tan 23 × y = 450
y = 450/tan 23
y = 1060.1335646 feet
Approximately = 1060 feet
Therefore, the horizontal distance from the boat to shore is 1060 feet