What is the measure of ABC
2 answers:
Answer:
C.
Step-by-step explanation:
We have been given am image of a circle. We are asked to find the measure of angle ABC.
We can see that angle ABC is an inscribed angle for our given angle. Angle ABC is an inscribed angle of arc AC.
We know that measure of an inscribed angle is half the measure of intercepted arc.
Therefore, measure of angle ABC is 44 degrees and option C is the correct choice.
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Here we get the statement:
"sec^-1(0.5) is undefined"
And we want to see if this is true or false, so let's use the properties that we know to find that this is false.
Remember that the sec function is defined as:
Then we will have:
Then is really trivial to see that:
Then we can conclude that the function is not undefined at 0.5, so the statement is false.
Below you can see the graph of the given function, and you will see that it is never undefined.
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