Answer:
Step-by-step explanation:
We know the rate for sales tax is:
This means Cindy has to pay for the bouquet of roses and the bouquet of daisies plus the of the value of each item.
So, we have to calculate the sales tax for both items:
Hence:
Answer:
(a) isosceles
(b), (c) scalene
Step-by-step explanation:
The lengths of the sides can be found from the distance formula:
d = √((x2 -x1)^2 +(y2 -y1)^2)
Here, there are 9 lengths to be computed, so it is useful to let a spreadsheet or graphing calculator do it.
We find triangle (a) has two sides the same length, so it is isosceles.
The other two triangles have three different side lengths, so they are scalene.
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<em>Additional comment</em>
It is impossible to specify an equilateral triangle using rational coordinates.
