What is the nth term of the sequence 19, 15.5, 12, 8.5, 5

1 answer:

3 0

Answer: 6.5 and 6 is the 9th term

Step-by-step explanation:

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Vinil7 [7]

Answer:

Step-by-step explanation:

$\frac{5q+5p}{2} = 3+4p\\5q+5p = 6+8p \\5q = 6 +3p \\q = \frac{6+3p}{5} ( a=3,b=6,c=5)$

2. q-p = 3p +5

q = 4p+5

4p = q-5

p = (q-5)/4

3. y = 2a -b $x^{2}$

$bx^{2} = 2a - y \\\\x^{2} = \frac{2a - y}{b} \\x = \sqrt{\frac{2a-y}{b}}$

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