5+3 + 7 = 5 + 7 + 3 O A. True B. Fa
2 answers:
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Answer
a) 2 x + 3 = 13 - 5 x
7 x = 13 -3
7 x = 10
b) 6 + 4 x = 10 x + 26
6 x = 20
c) 6 x + 9 = 13/5 - x
d) 0.6 + 0.4 x = x + 2.6
0.6 x = -2
e) 3(2x + 3) = 13/5 -x
6 x + 9 = 13/5 - x
f) 4 x = -10 x + 20
14 x = 20
g) 15(2x + 3) = 13 - 5x
30 x + 45 = 13 - 5 x
35 x = -32
h)15(2x + 3) + 97 = 110 - 5x
30 x + 45 + 97 = 110 - 5x
35 x = -32
so , the solution of part c, e, g, h is same which is
the solution of part a, f is same which is
In triangle 1, the values are α = 65°, a = 42.02, and 45.66. And in triangle 2, the values are β = 55.74, γ = 84.26, and c = 10.84.
<h3>What is the law of sines?</h3>For any triangle ABC, with side measures |BC| = a. |AC| = b. |AB| = c,
we have, by law of sines,
1. β = 15°, γ = 100°, and b = 12, then the missing side and angle will be
The sum is 180° of a triangle. Then the value of α will be 65°.
Then the value of a will be
a = 42.02
Then the value of c will be
c = 45.66
2. α = 40°, a = 7, and b = 9, then the missing side and angle will be
(sin 40°)/7 = (sin β) / 9
sin β = 0.82644
β = 55.74
The sum is 180° of a triangle. Then the value of γ will be 84.26°.
Then the value of c will be
c = 10.84
Learn more about the law of sines here:
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