Math 1 QTR 4 (SY 2019-20) UPDATED
1 answer:
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The two curves and
intersect at
and
, with
over
.
- Washer method
- Shell method
We have . The curves
and
intersect at
and
, with
over
.
Discounts are used to reduce the original price of an item.
David will pay $25 and 92 cents for an item of $32, before tax
The discount (d) is given as:
The price (p) of the item is given as:
So, the amount (A) paid before tax is calculated using:
Substitute known values
Express percentage as decimal
Subtract 0.19 from 1
Multiply 32 and 0.81
Hence, David will pay $25 and 92 cents for an item of $32, before tax
Read more about discounts at: