The cost of a service call to fix a washing machine can be expressed by the linear function y=45x+35, where y represents the total cost and x represents the number of hours it takes to fix the machine. what does the slope represent?

The slope represents the amount you're being charged per hour, so $45 per hour.

4 + 5 7/9= 9 7/9

step-by-step explanation:

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584