9. Isidro wants to purchase a used scooter that costs $79.95, The Sales
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
(a). 270° clockwise or 90° counterclockwise:
(x, y) --------> ( - y, x )
(b). 270° counterclockwise or 90° clockwise:
(x, y) ---------> ( y, - x )
Given, a = -65 and b = 8.
We have to find multiplication of them.
a is negative and b is positive. When we multiply them, we know that the multiplication of positive and negative is negative. That means .
So
= =
=
So we have got the required product.
Multiplication of a and b = -520.
The correct option is option C.