Given quadratic equation


Using the usual conventions,
a=1, b=6, c=6
Apply the quadratic formula,

substitute a,b & c with numerical values,

simplify:
Answer: 4.2 lbs
Step-by-step explanation:
Amount of grapes he had (in pounds) = 1.9 + 2.3 pounds
Amount of grapes he had (in pounds) = 4.2 pounds
I think is 2x+y=-5 the answer
The solution would be: a = 3/4
Answer: am not 100% sure but shouldn't it be all if them?
Step-by-step explanation: