Which shows the correct substitution of the values a, b, and c from the equation -2 = -x + x2 - 4 into the quadratic formula?
Quadratic formula: x= -b/b2 - 4ac
20
x= -(-1):7(- 1)2 - 4(1)(-4)
2(1)
x=
-10V 12 - 46 - 1)(-4)
27- 1)
-1 )2 - 4(-1)(-2)
2(-1)
x = -(-1)/(-1)2 - 4(1)(-2)
2(1)

what is the question you are asking?

discount price = (original price)(1 – 0.15)

is the right answer   on edge

answer: $53750

steps:

list the principal and interest after the n-th year:

n       principal   simple interest

1     12500     375

2     25000     750

3     37500     1125

4     50000     1500

sum: $50000     $3750

total at end of year 4: $53750

a is the answer to ur question