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a7/a10 = a10/a13 = 1/r3 where r is the common ratio.

So a7 = (a10)2/a13 = -81/72 = -9/8

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12y ago

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What does forward slash symbol mean on a spreadsheet?

It can be used for division. So the following formula will divide the value in A3 by the value in A10: =A3/A10


What is the 22nd term in the arithmetic sequence in which a4 is 73 and a10 is -11?

In an arithmetic sequence, the ( n )-th term can be expressed as ( a_n = a_1 + (n-1)d ), where ( a_1 ) is the first term and ( d ) is the common difference. Given ( a_4 = 73 ) and ( a_{10} = -11 ), we can set up the equations: ( a_1 + 3d = 73 ) ( a_1 + 9d = -11 ) Subtracting the first equation from the second gives ( 6d = -84 ), so ( d = -14 ). Substituting ( d ) back into the first equation yields ( a_1 = 73 - 3(-14) = 73 + 42 = 115 ). To find ( a_{22} ), we use ( a_{22} = a_1 + 21d = 115 + 21(-14) = 115 - 294 = -179 ). Thus, the 22nd term is (-179).


How many A10 sheets go into an A0 sheet?

If you divide A0 size in half (cut or fold it) you get A1. If you divide A1 in half you get A2, etc, etc. Therefore 210 A10 sheets fit into A0, = 1024 sheets. A10 is very small (26 × 37 mm) and of little use.


How many sheets of A10 paper goes into a A0 sheet?

An A0 sheet of paper measures 841 x 1189 mm, while an A10 sheet measures 26 x 37 mm. The A series paper size is designed such that each size is half the area of the previous size. Therefore, it takes 1,024 sheets of A10 paper to fill an A0 sheet.


What does the SUM function do?

One of the most commonly used functions is the SUM function, which allows you to quickly add up values in a range of cells. To add all the values in all the cells from cell A1 to A10, it could be done with the SUM function in a formula like this:=SUM(A1:A10)That is much simpler than doing:=A1+A2+A3+A4+A5+A6+A7+A8+A9+A10