ranmmm
05.05.2020 •
Mathematics
Can you help me with number 3 plzzzz
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Ответ:
Step-by-step explanation:
-x² + 6x - 9 = -(x² − 6x + 9)
= -(x - 3)²
then
the vertex is (3 , 0)
and the parabola is oriented down due to the minus sign at the beginning of the quadratic equation.
Ответ:
Answer is AR^n-1 (A multiplied by R {raised to the power of n minus 1} )
Step-by-step explanation: The above sequence is a geometric progression or geometric sequence. Each term is derived or calculated by multiplying with a common ratio.
The common ratio is not given but is normally calculated as each term divided by the previous term. That is, R (common ratio) is
81/243, or 27/81, or 9/27...,
So our common ratio here is ⅓
Hence, the Geometric progression now has its recursive rule written as
AR^n-1
Where A = 2, R = ⅓ and n is the nth term