Question

A1=-0,8 d=4 а7;а24;ау+1-?

Answer 1

$a_n=a_1+d(n-1)$
$a_7=a_1+d(7-1)= -0,8 + 4*6 = 24-0,8= 23,2$
$a_{24} = a_1+d(24-1)= - 0,8 +4*23= 92-0,8 = 91,2$
$a_{y+1}=a_1+d(y+1-1)= a_1+dy$

Answer 2

It seems like you've provided some mathematical notation, but it's a bit unclear. Let me break down what you've given:

1. A1 = -0.8
2. d = 4
3. You've mentioned "a7," "a24," and "aу+1-?" which is not very clear.

It appears that "A1" and "d" are assigned values: A1 is -0.8, and d is 4. However, the notation "а7," "а24," and "ау+1-?" is not well-defined. If you could provide more context or clarify the notation you're using, I'd be happy to help you further. For example, if "а7" and "а24" are meant to represent some sort of sequence or pattern, or if "ау+1-?" has a specific meaning, please provide more information so I can assist you accurately.