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Indices (not indicies) have two meanings: one is powers. In the expression x3, the 3 is an index. The second meaning is a counter. If you have five observations and they are labelled X1, X2, ... , X5 then the numbers in Xn is an index.
7 x 11 = 77
BiDMAS - It stands for:BracketsIndiciesDivideMultiplyAddSubtractThe rule states that you must perform the calculations within a formula in the sequence stated. i.e. anythign in Brackets has to be calculated first, then any indicies (or powers) have to be calculated, then any divisions, multiplications, additions and subtractions.....in that order.
Look at them: they are quite easy to find!Look at them: they are quite easy to find!Look at them: they are quite easy to find!Look at them: they are quite easy to find!
"Find out" is usually used to indicate that you have uncovered or learned some fact or idea that you did not personally know.When I find out who did this, I will punish them.When I find out how to bake a pie, I will make a dozen of them."Find" is usually used when you discover something tangible.When I find my keys, I will open the door.When I find a pie, I usually eat it.