exam Maths Puzzle Numerical Ability

Skydiving. If there were no air resistance, then the height (in feet) above the earth for a skydiver t seconds after jumping from an airplane at 10,000 feet would be given by h(t)

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exam Other Question

solve the system using matrices. Use Gaussian elimination with back-substitution or Gauss-Jordan elimination:

3x+2y+3z=3
4x-5y+7z=1
2x+3y-2z=6 A bicyclist rode into the county for 5 hours. In returning her speed was 5mi/h faster and her trip took 4 hours. What was her speed each way?