Answer:
x = - 3 ± 3
Step-by-step explanation:
given the equation x² + 6x - 9 = 0
We can solve for x using the quadratic formula
x = ( - b ± ) / 2a
with a = 1, b = 6 and c = - 9
x = ( - 6 ± ) / 2
= ( - 6 ± ) / 2
= ( - 6 ± ) / 2
= ( - 6 ± 6 ) / 2
x = - 3 ± 3
Answer:
We are given that a store announced that their $500 appliances were on sale.
The price of the appliances after discount is $475.
We are required to find the percent discount on the appliances.
To find the percent discount, we have to use the below formula:
Therefore, the percent discount on the appliances is 5%