Andrea can clean a house 4 times as fast as denise. when they work together, andrea and denise can clean a large house in 8 hours. how many hours would it take denise to clean the house by herself?

20
15
40
5

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

In two or more complete sentences, formulate how to use technology to calculate the appropriate regression model for the given data. you are not required to find the model, just choose the appropriate regression and explain how to use the technology. (-5,,2.,0.8), (0,-0.5), (2,-1.3), (3,-0.8), (5,2)

100 points, hi, i’m not sure how to get the equation from the graph and table.