Answer:
i belive the answer is b but im not 100% sure
A = P(1+r/n)^<span>(nt)
1,687.30 = P (1+ 0.04/1)^3
1,687.30 = P (1.124864)
P = 1687.30 / </span>1.124864
P = 1500
answer: $1500 <span>was the original amount jeff invested</span>
Answer:
a= 63
Step-by-step explanation:
16+11=27
90-27= 63
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
