A the first answer because the triangles are the same they are just flipped
1. x^2 + x - 90
2. (x+10)(x-1)
3. x= -10 and 1

Positive square root of 0.25 = 0.5
Hope this helps. - M
Answer:
5140 and 3140
Step-by-step explanation:
Note there is a common difference d between consecutive terms in the sequence, that is
d = 140 - 40 = 240 - 140 = 340 - 240 = 100
This indicates the sequence is arithmetic with n th term
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = 40 and d = 100, thus
= 40 + (51 × 100) = 40 + 5100 = 5140
= 40 + (31 × 100) = 40 + 3100 = 3140
5 5/30 is the answer to the question.