The amount is $9,350 ,time in years: 4 and interest is 5 percent compounded semiannually.
Use the formula.
Here n =2 .
Substitute the values,
Hence the present value is 7673.98 dollar.
Answer:
B and D
F also has vertical angles however they haven't been numbered like the others
R^2+r-8r-8=0
r(r+1)-8(r+1)=0
(r+1)(r-8)=0
r+1=0, r=-1
r-8=0 , r=8
answer: r=-1 or r=8