(giving if u helpp mee) What is static electricity?

A) Build up of electrical charges on the surface of an object
B) Build up of light energy that causes electrical charges to move
C) The flow of electrical charges in a conductor
D) The movement of electrical charges through an insulator

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Acone with volume 1350 m³ is dilated by a scale factor of 1/3. what is the volume of the resulting cone? enter your answer in the box. m³

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score