2x²-6x+8=0
x²-3x+4=0
D=b²-4ac=9-16=-7
x=(3+/-i√7)/2
correct answer is the last one
Answer:
These are the answers:
A) The mean, or average, is a measure of center.
D) Measures of variability describe how the values in a data set vary.
E) Measures of center describe all values in a data set with a single number.
How are we supposed to help?
Answer:
answers are below
Step-by-step explanation:
(2+3) + (5+6)
(5) + (11)
equivalent expression: 5 + 11
is this the actual expression though? because in this case, i think that your expression should 2x + 3 + 5x + 6 and not what you mentioned.
however, if that is the case then your answer would be:
7x + 9