exam
Maths Puzzle
Numerical Ability
Can you help me find the domain for the following?
f(x)=sqrt x-8
h(x)=3x^2+5x-3
m(x)=5/x^2-9
l(x)=5x-4
g(x)=7x+4/x+4
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exam Other Question
Add or subtract
1/a - 3 - 1/a + 3 + 2a/a^2 - 9
susan wants to put acoustic tiles on her ceiling her room is 8ft,5ft,10ft,12ft.if each ceiling tile is 12 inches by 12 inches square and cost.83 cents each how much money will she