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Why does a positive minus a negative equal a positive?
Because "minus a negative" is tha same as "plus a positive". So, a positive minus a negative is a positive plus a positive which is a positive.
What are tha angle measures of a rhombus?
Opposite angles of a rhombus are equal and the sum of all four angles is that of any quadrilateral: 360o.
The average of a set of 9 numbers is 99 after one of the numbers is deleted from the set the average of the remaining numbers is 89 what number was deleted?
The average of nine numbers is 99, that is tha the sum of those numbers was 99 x 9, which is 891. The average of 8 numbers is 89, that is that the sum of those numbers was 89 x 8, which is 712. So, 891 - 712 = 179 The number that was deleted was 179.
What is tha binary equivalent of 123789?
10010011111100111010
How do you get the average for three numbers tha contain decimals?
Exactly the same way you do when they're all whole numbers, or there are more than three numbers, or they're a mixture of whole numbers and decimals: -- Add up all the numbers on the list. -- Divide the big sum by the number of items on the list.
