13 scaled down by 1/5
= 13 ÷ 1/5
= 13 × 5/1
= 65.
Ali's solution is incorrect
same as 9y + 1y
10y
It's the relation between the arc length of a circle, and the measure of angle. Before radians, we could only measure in degrees, and use pi to convert from arc length and circumference and angle measure. But, with the introduction of radians, it's much easier to map the relation. Hope it helps!
Answer:
the slope for y-5=-4(x+1) is: -4
