Answerr b 4
Step-by-step explanation:
2x^2+20x = -38
2x^2 + 20x + 38 = 0
Divide both sides by 2.
x^2 + 10x + 19 = 0
The quadratic formula works very well here.
Let a = 1, b = 10 and c = 19
x = [-b +- sqrt{b^2 - 4ac}]/(2a)
Plug those values into the formula to find two answers for x.
One is negative and the other positive.
Good luck.
Answer:
Step-by-step explanation:
The three heaviest eggs are between and
Hope this helps and please feel free to comment, ask questions, give feedback, and correct me if I am wrong!
Have a great day!
:)
Answer:
Step-by-step explanation:
Given: Sunny earns $12 per hour delivering cupcakes. She worked for x hours this week.
The total earning for this week =
Also, she was charged $15 for a late delivery on Tuesday.
It means, The total earning for this week =
So if Sunny earns $12 per hour delivering cupcakes. She worked for x hours this week and was charged $15 for a late delivery on Tuesday then her earning for this week = 12x-15
Answer:
520 girls attended the picnic
Step-by-step explanation:
Hello
step 1
Let
Homewood middle school total students=1200
A=unknown=total of girls
(2/3)A=total girls attended the picnic
B=unknown= total of boys
(1/2)B=total boys attended the picnic
step2
replace
Step 3
find A and B
from equation (1)
from equation (2)
total girls attended the picnic=(2/3)A=(2/3)780=520
520 girls attended the picnic