Based on the given nomenclature of angles, I think the illustration would look like that shown in the attached picture. The common vertex is point B, that's why the middle point of the given angles is B. Now, according to Angle Addition Postulate, the individual interior angles should sum up to the total angle. So, the equation would be
m∠ABD = m∠ABC + m∠CBD
m∠ABC = m∠ABD - m∠CBD
m∠ABC = 85° - m∠CBD
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Answer:
-8
Step-by-step explanation:
Plug in the values of each variable:
4(-6 + 3) - 2(-2)
Use PEMDAS:
4(-3) - 2(-2)
-12 + 4
-8
Answer:
350 months
Step-by-step explanation:
200x + 2912 = 72912 subtract 2912 from both sides
200x= 70000
x= 350
R θ is the length = 7.5 cm
R^2 θ/2 is the area = 37.5 (cm)^2
Therefore
R = 2* 37.5 / 7.5 = 10 cm