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
The answer to <span>102 divided by 6 in distributive property would have to be </span>17
Answer:
the sum of x and 15 is -16 because it is a straight line which means the straight line is a function.
Answer:
B.
Step-by-step explanation: