The compression ratio for an engine is defined by the expanded volume: compressed volume. the larger the compression ratio is, the more powerful the engine. what is the compression ratio if the expanded volume is 400 cc and the compressed volume is 260 cc? round your answer to the hundredths place if necessary. make sure your answer has a 1 in the denominator or the right hand value.

Given abcd ac=38 and ae=3x+4 find the value of x

What does the relationship between the mean and median reveal about the shape of the data

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?