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Maths Puzzle
Numerical Ability
A variable z varies jointly with x and the square of y. If z = 6 when x = 4 and y = 3, write the equation of joint variation.
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book Other Question
The perimeter of a rectangle is 34 feet, and the diagonal is 13 feet long. What are the length and width of the rectangle?
write each set in interval notation and graph it?
1. .3X+2.1(X-4)_<_-6.6
2. -5X+1_>_11 or 3X+5>26
hint: _>_ or _<_ is greater than or equal to or less than or equal. I