Write the quadric equation in standard form and then choose the value of "b" (2x-1) (x+5)=0
1 answer:
Answer:
2x² + 9x - 5 = 0
b = 9
Step-by-step explanation:
(2x - 1) (x + 5) = 0
Expand
2x² + 10x - x - 5 = 0
Simplify
2x² + 9x - 5 = 0
b = 9
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The missing value is 6 so 2/5 = 6/15
Word | know | Unknown
Language| 12 | x
Total | 180 | 28980
Use cross multiply:
12(28980) = 180(x)
347760 = 180x
347760/180=1932
Answer:
c
Step-by-step explanation:
substitute (2,1) and (5,4) into each equation
2-1=1 and 5-4=1 so c is correct
Answer: 12 and a half i think
Step-by-step explanation:
The second one. (B) because i learned about it in 6th grade.
