Answer:
A. multiply both sides by the LCD
Step-by-step explanation:
It helps cancel out fractions, making it easier to solve the equations
Focus on triangles DFC and DFE:
- They are both right triangles because DF is perpendicular to EC
- DC=DE
- DF is a common side
So, the two triangles are congruent. It follows that CF=FE, and in particular

And since x=3, the length of EF is

Answer:
Step-by-step explanation:
= - 7
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The answer is 110.
The 55 degree angle is related to arc B. The measure of arc B is double the measure of the angle. So, arc B covers 55*2=110 degrees.