Complete Question
The complete question is shown on the first uploaded image
Answer:
The value of 
The value of 
Step-by-step explanation:
Generally the total angle that make up a circle is

From the diagram we see that

=> 

Generally angle that is formed as a result of interception of a chord and a tangent is equal to the intercepted arc divided by 2
This implies that

substituting values


Answer:
x = 30
Step-by-step explanation:
(30) +
(30) = 28
(30) = 18
(30) = 10
18 + 10 = 28
6x + 15
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Answer:
C=5
Step-by-step explanation:
hope this helps
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The exponent only applies to the x not the 4
so only the x has permission to move to the denominator
this leaves you with 4/x^3