System of equations-4× 7y=-8-5× 6y=1
1 answer:
-4x + 7y = -8 . . . (1)
-5x + 6y = 1 . . . .(2)
(1) x 5 => -20x + 35y = -40 . . . (3)
(2) x 4 => -20x + 24y = 4 . . . . .(4)
(3) - (4) => 11y = -44 => y = -44/11 = -4
From (2), -5x + 6(-4) = 1 => -5x - 24 = 1 => -5x = 1 + 24 = 25 => x = 25/-5 = -5
Therefore, x = -5, y = -4
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Sin = opposite/hyp
Sin A = 10/26 = 5/13
Sin b = 24/26 = 12/13
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Answer:
<u>The difference in areas:</u>
- 124 - 34 = 90 square feet
<u>Percent increase:</u>
Answer: There are 4 terms in the Algebraic expression.
Answer:
a) 6(6x-5)
=(6×6x) - (6×5)
=36x-30
b)11y+4y+10y
=y(11+4+10)
=y(25)
=25y
Answer:
114
Step-by-step explanation:
