So for example 50 65 68 72 74 78 80 82 83 84 90 91 92 92 92 92 93 94 95 97 98 98 99 99 100 100.
if we use that we could make this.
Stem Leaf
5 0
6 5 8
7 2 4 8
8 0 2 3 4
9 0 1 2 2 2 2 3 4 5 7 8 8 9 9
10 0 0
I think that 0 is the vertex
Given the circumstances, a triangle can be drawn on a circle where the hypothenuse is 5, the leg going right is 4, and the amount going up is 3 (Try visualizing it). Knowing that tangent is opposite over adjacent of theta, tangent would be 3/4
Both B and C will give you the correct factorization for this equation.
When you factor a quadratic, you are looking for factors of the last number (-42) that add up to the middle coefficient (1). Below are the factors of -42.
1*-42
-1*42
2*-21
-2*21
3*-14
-3*14
6*-7
-6*7
And since these two are the only ones that add up to 1, we use these in parenthesis, creating the following (x - 6)(x + 7) - which is answer C. You also can switch the order due to the laws of multiplication. If you switch them around you get (x + 7)(x - 6) - which is answer B as well.
The tax would be $11.08 out of $102.
If I round the two numbers and then divided them by each other I would get
.11 cents tax per $1
