If I am using a tiny inclined plane to do a tiny amount of work. The output is 4 Joules of energy, but I have input 8 joules of energy. What is my machine's efficiency?

An eight-sided die, which may or may not be a fair die, has four colors on it; you have been tossing the die for an hour and have recorded the color rolled for each toss. what is the probability you will roll a brown on your next toss of the die? express your answer as a simplified fraction or a decimal rounded to four decimal places.

5(-9w) put expression in distributive property

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?