Answer:
Step-by-step explanation:
Given:
The given AP is.
12,0,-12,......
The first term of an AP 
Common difference 
We use the the formula for nth term of an AP.
for 87th term
Therefore, The 87th term of given series is -1020.
Answer:
1.84
Step-by-step explanation:
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Answer:
x = 3
Step-by-step explanation:
the equation of a vertical line parallel to the y-axis is
x = c
where c is the value of the x-coordinate the line passes through
here the line passes through (3, 2 ) and (3, - 4 )
both points have an x-coordinate of 3, hence
equation of line is x = 3
Answer: 8x^2+2x+3 where ^2 means the 2 is an exponent.
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