Ax^2+bx+c=0
a=2
b=-1
c=-3
b+-sqrt( b^2 - 4ac)
2a
so...
-1 +- sqrt(1 + 24)
4
-1 +- 5
4
x= -1 + 5 = 1
4
or
x= -1 - 5 = -3/2
4
Answer:
560
Step-by-step explanation:
First we need to know how many pounds every minute which can be solve by dividing 175 by 5 which equals 35. Then we multiply 35 by 16 to get the total amount of pounds which is 560 pounds.
Step-by-step explanation:
a Sally has to get 6 packages of buns and 5 hot dog packages
Answer:
George's mistake would be:
Instead of 2x + 40, she has made - x + 20.
Step-by-step explanation:
Slope - Intercept Form = y = mx + b
y + 20 = 2(x +20)
y + 20 = 2x + 40
- 20 - 20
----------------------
y = 2x + 20
(Should have been the answer)
BUT,
George's Solving:
y + 20 = 2(x + 20)
y + 20 = -x + 20
George's Mistake would be her miscalculation during her 2nd step. Where instead of distributing 2 to (x + 20), she has changed it to -x + 20, when in reality, it should have been 2x + 40.