Answer:
0.5 inches per month
Step-by-step explanation:
There are nearly 0.3937 inches in 1 cm, so
There are 12 months in the year, so'
15 centimeters per year is equivalent to
Sin³ x-sin x=cos ² x
we know that:
sin²x + cos²x=1 ⇒cos²x=1-sin²x
Therefore:
sin³x-sin x=1-sin²x
sin³x+sin²x-sin x-1=0
sin³x=z
z³+z²-z-1=0
we divide by Ruffini method:
1 1 -1 -1
1 1 2 1 z=1
-------------------------------------
1 2 1 0
-1 -1 -1 z=-1
--------------------------------------
1 1 0 z=-1
Therefore; the solutions are z=-1 and z=1
The solutions are:
if z=-1, then
sin x=-1 ⇒x= arcsin -1=π+2kπ (180º+360ºK) K∈Z
if z=1, then
sin x=1 ⇒ x=arcsin 1=π/2 + 2kπ (90º+360ºK) k∈Z
π/2 + 2kπ U π+2Kπ=π/2+kπ k∈Z ≈(90º+180ºK)
Answer: π/2 + Kπ or 90º+180ºK K∈Z
Z=...-3,-2,-1,0,1,2,3,4....
Answer: 1/3
Step-by-step explanation:
their there choices he can only choice one
Answer:
30 kilometers
Step-by-step explanation:
I just looked at it and knew it was 30 k as the longest
This is how I knew:
let's convert every unit into meters
90cm = 0.9m
40m = 40m
30km = 30000m
40mm = 0.04
easy :)
good luck
-cheesetoasty
