Yes because any number multiplied by a decimal gets moved over to how ever many decimal places it went. EX 5(.12) = .6. Every time multiplying with a decimal, the answer will always be smaller and include a decimal.
Yes. x=3 and y =9 are the solutions.
Because if you change x=3 and y =9 ,you will have
3+2* 9 =21
3+18 =21
21 =21 (true)
I took a picture of the answer for you.
Answer:
Option C
x²+ 2x -24=0
x²+6x-4x-24= 0
x(x+6) -4(x+6) = 0
(x+6)(x-4) = 0
x= -6 and 4
Therefore, for x = 4 and -6 , the above given equation is true.