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Recursive formula →

Step-by-step explanation:

Recursive formula given for the sequence is,

and

Therefore, sequence will be,

10, 1, -8, -17........

Explicit formula for an arithmetic sequence is,

Here, n = number of term

d = common difference

Therefore, recursive formula will be,

    = 10 - 9n + 9

    = 19 - 9n

is it 35

step-by-step explanation:

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct