Answer:
<h2>

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Step-by-step explanation:
x - y² = -1 ⇒ - y² = - x - 1 ⇒ y² = x + 1 {x≥-1}
4x² + 9y² = 72
4x² + 9(x + 1)² = 72
4x² + 9(x² + 2x + 1) = 72
4x² + 9x² + 18x + 9 - 72 = 0
13x² + 18x - 63 = 0 ⇒ a = 13, b = 18, c = -63

Givens
4 marbles (white, green, blue and orange)
1 box
1 coin with 2 sides.
Discussion
You can pull out one of 4 marbles and get either heads or tails.
Coin = 2 results.
Box = 4 results.
Total number of results - 2 * 4 = 8 results.
B <<<<< Answer.
Answer:
8 1/3 meters
Step-by-step explanation:
set up a proportion of corresponding sides:
TE/AY = JT/DY
25/AY = 18/6
cross-multiply:
18AY = 150
AY = 150/18 which is 8 1/3