Answer: m < 1
x² - 2x + m = 0 (*)
a = 1 b = -2 c = m
Δ = b² - 4ac = 4 - 4m
(*) has 2 district real solutions => Δ > 0
⇔ 4 - 4m > 0
⇔ 4m < 4
⇔ m < 1
Step-by-step explanation:
Here is your answer good luck!
Answer:
C. 500 + 300 + 50 + 10 + 7
Step-by-step explanation:
Which expression represents the number 867?
A. 80 + 60 + 70
B. 800 + 6 + 7
C. 500 + 300 + 50 + 10 + 7
D. 500 + 300 + 60 + 70
Checking the answer choices by adding the expression
A. 80 + 60 + 70
= 210
No correct
B. 800 + 6 + 7
= 813
Not correct
C. 500 + 300 + 50 + 10 + 7
= 867
Correct
D. 500 + 300 + 60 + 70
= 930
Not correct
Therefore option C. 500 + 300 + 50 + 10 + 7 is the correct answer
You can to 7+2 or 6+3 or 5+4.