For items 15-20, Complete the cross number puzzle by determining the common ratio and the missing term of a geometric sequence.
Answer will be written in the puzzle for self checking 16 18 19 20 HE 15 17 1 1 Across: 1 . 15) 10'100' pony 10000 16) 10th term of the sequence -12, 24, -48,... 17) 2, 4, 8, 16, ... az 32 12 own: 18) 750, 150, 30 _ 19) 11, 44, 176, 704. 20) 4, -2, 1, -5 r = 2' 1
1 answer:
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A = W· L
10,000 = W ( W +30 ) = W² + 30 W
W² + 30 W - 10,000 = 0
W =
L = 86.12 + 30 = 116.12
Width of a plot is 86.12 m and lenght is 116.12 m.
Check : A = 116.12 · 86.12 ≈ 10,000
10,000 = W ( W +30 ) = W² + 30 W
W² + 30 W - 10,000 = 0
W =
L = 86.12 + 30 = 116.12
Width of a plot is 86.12 m and lenght is 116.12 m.
Check : A = 116.12 · 86.12 ≈ 10,000