# A Pyramid is 600 ft high (due to erosion, its current height is slightly less) and has a square base of side 5400 ft. Find the

###### Question:

A Pyramid is 600 ft high (due to erosion, its current height is slightly less) and has a square base of side 5400 ft. Find the work needed to build the pyramid if the density of the stone is estimated at 228 lb/ft3.

### Sec2x - tan2x = tan(45-x)

Sec2x - tan2x = tan(45-x)...

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Nick has \$7.70 in quarters and dimes, and the total number of coins is 38. how many quarters and how many dimes?...