Answer:
15
-----
32
Step-by-step explanation:
3 5 15
-- * -- == ---
4 8 32
The parabola has 2 x intercepts, so quadratic equations has 2 real roots (-6), and 3
we can write (x+6)(x-3)=0 , x²+6x-3x-18=0, y=x²+3x-18
check y int =-18 on the graph
y=1x²+3x-18
Answer:
I think the answer could be 11.5
Step-by-step explanation:
It's in the middle of both numbers
a=9
b=11.5
c=14
Answer:
Given:
- A shopper buys a $100 coat on sale for 20% off.
- An additional $5 is taken off the sale price by using a discount coupon.
- A sales tax of 8% is paid on the final selling price.
To find:
- The total amount the shopper pays for the coat.
The formula used to calculate percentage is:(value/total value)*100%.
Step-by-step explanation:
Step 1 of 2
After the 20% sale, the coat costs
100*0.8 = 80 dollars.
Then 5 dollars are taken off for a cost of
80-5 = 75
Step 2 of 2
Now adding on the sales tax,
the final amount is 75(0.8) = 81 dollars
