exam
Maths Puzzle
Numerical Ability
Please help me factor the polynomial. Thanks
49r^2+81s^2
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exam Other Question
jerry spent 2.5 h biking up mount lowe, rested at the top for 30 min, and biked down in 1.5 hr. how far did he bike if his rate of ascent was 3 km/h less than his rate of descent?
slove algebraically log base 4 (x+41)- log base 4(2x-5)=2