That will be easy. It could be 12/56+3/56 or, 7/56+8/56 or, 10/56+5/56.
We know that sin2x=2sinxcosx
(search the net for proof if you wish)
So the original equation becomes
2sinxcosx-sinx=0
The two terms both have sinx that can be taken out to get:
sinx(2cosx-1)=0
This is true if sinx=0 or 2cosx-1=0 , rewritten: cosx=1/2
sinx=0 than x=2kπ
cosx=1/2 than x=π/3+2kπ
where k is an integer
let x=k
D=dog
T=Taxes
I=increase P=population
solve k
d=23,000
t=2000
d=2.3e^
divide both sides by 2
after year is,2000+k2-2.3
=1.999.7
k2- 23,000=
k-x
or
k2-2
40%=0.4
0.4+1=1.4
4.5(1.4)=6.3
The answer is $6.30
Answer:
C
Step-by-step explanation: