#1 is b and #2 is also b ,, i think..so sorry if i’m wrong!
The missing parts of the triangle ABC are A = 31.4°, B = 57.4°, C = 91.2°
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Given that a = 8.6 in, b = 13.9 in. and c = 16.5 in. Using cosine rule:
c² = a² + b² - 2abcosC
16.5² = 8.6² + 13.9² - 2(8.6)(13.9) * cosC
C = 91.2°
Also:
a² = b² + c² - 2bccosA
8.6² = 16.5² + 13.9² - 2(16.5)(13.9) * cosA
A = 31.4°
A + B + C = 180° (angles in a triangle)
31.4 + B + 91.2 = 180
B = 57.4°
The missing parts of the triangle ABC are A = 31.4°, B = 57.4°, C = 91.2°
Find out more on equation at: brainly.com/question/2972832
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All work is shown in picture below.
Answer:
Step-by-step explanation:
Given
Required
The domain
There are no undefined points such as denominator of x or square roots.
Hence, the domain is:
1 < = x + 7 < 7....subtract 7
1 - 7 < = x + 7 - 7 < 7 - 7...simplify
-6 < = x < 0
closed circle on -6, open circle on 0, shading in between
