It's real and rational roots
question 4 is A
question 5 is 43.6
question 5 showing work
how I would figure it out is 151-20 =131
then I would divide it by 3 for each day
_
131÷3=43.6
It is NOT a right triangle because a^2+b^2 does not equal c^2.
[ you can use my work for more explanation if your teacher wants it done a certain way]
3*3=9
3 *-8i = -24i
8i *3 =24i
8i*-8i = -64i^2 or i^2 =-1. -64*-1=64
-24i + 24i =0
9+64= 73
Answer 73
The awnser has to be 26??