Answer:

Step-by-step explanation:
we know that
-----> by central angle
see the attached figure to better understand the problem
we have


substitute


M = -2
In perpendicular lines, the slopes are opposite reciprocal. This means you flip the sign (from + to - or from - to +) and flip the numerator and denominator.
So 1/2 becomes negative, and 2/1 = 2
So the slope is -2
The rule to use: when dividing fractions, invert and multiply.
-6 ÷ -(3/4) equals -6 * -(4/3) which equals 24 / 3 which equals
8
No, the product is not valid. The number of columns of

(five) should match the number of rows of

(four).