X=-5.5 the other zero would be x=-0.5 but that’s not an option.
Quadratic equation is
WHEN
So, to make this true subtract 7 from each side.
The equation is now
7
- x - 7 = 0
Values for a, b, and c: a = 7, b = -1, c = -7
Plug these variables into the quadratic equation.
Square -1 to get 1 and multiply -4 x 7 x -7 to get 196.
Multiply 2 x -7 to get -14, the denominator, and add 1 to 196.
Since 197 is not a square number, and I don't know if you want to leave it in radical form or not, I will just because it's easier to understand.
Hope this helps!
x = 5/7 - 3/5 = 25/35 - 21/35 = 4/35
Answer:
cost to afford to bring these calculators is $8.4
markup on retail = 5.6
Step-by-step explanation:
given data
selling price = $14
mark up on selling = 40% = 40/100 = 0.40
to find out
What cost can Mike afford to bring these calculators
solution
we calculate markup on retail that is mark up on selling of selling price
markup on retail = 0.40 × 14
markup on retail = 5.6
so
cost to afford to bring these calculators = 14 - 5.6
cost to afford to bring these calculators is $8.4
Answer:
29.7
Step-by-step explanation:
(1/2)*11*5.4=29.7