Answer:
A'(-1, 5), B'(-2, 3), and C'(-5, 4)
Step-by-step explanation:
Given the coordinate (x, y), if reflected over the y-axis, the resulting coordinate will be (-x, y):
Given the coordinates of the triangle expressed as:
A(1. 5), B(2, 3), and C(5, 4)
When these coordinates are reflected over the y-axis, the results will be:
A'(-1, 5), B'(-2, 3), and C'(-5, 4)
<em>Note that the x coordinates were negated while the y-coordinates remains unchanged</em>
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Answer:
Opposite sides are congruent (AB = DC).
Opposite angels are congruent (D = B).
Consecutive angles are supplementary (A + D = 180°).
If one angle is right, then all angles are right.
The diagonals of a parallelogram bisect each other.
Each diagonal of a parallelogram separates it into two congruent triangles.
Step-by-step explanation:
firstly chain rule is dy/dx = dy/du * du/dx
a) y = 5u² + u - 1 hence dy/du = 10u +1
u = 3x +1 hence du/dx = 3
so dy/dx = 3(10u +1) {sub in u and expand}
b) y= u^-2 hence dy/du = -2u^-3
u=2x+3 hence du/dx = 2
so dy/dx= 2(-2u^-3) {sub in u}
Let's solve ~
Cost price for each Orange :
Now, Cost price for 8 oranges :
And we have been given that selling price for 8 oranges is 12 kobo.
Therefore, the gain is :
Percentage gain is ~
