A spherical ball of 8 cm diameter is melted into a cone with base 20 cm in diameter. Find its height.

2.56cm

3cm

2cm

3.75cm

Correct Answer : A

The distance between the points (-4, 5) and (-4, -15) is

The distance between the points (-7, 5) and (-7, -20) is

What is the slope of the line given by the equation 4g - 5 = 7 - 2e?