The answer is 24a + 6 because you add up the like-terms, so: 18a + 6a = 24a 8 - 2 = 6 I hope this helps!
Answer from: Quest
21.3
step-by-step explanation:
multiplying the given equation by c/sin(25°), we get
c = 9/sin(25°) ≈ 21.2958 ≈ 21.3
we assume "c" is the length of ab, the side opposite angle c in triangle abc.
Answer from: Quest
right
step-by-step explanation:
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The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?