In circle O, central angle AOB has a measure of 90°. Which of the following is not true? segment OA is a radius segments OA and
OB are perpendicular arc AB is a semicircle
2 answers:
Answer:
Arc AB is a semicircle, Not true.
Step-by-step explanation:
In circle O, central angle AOB has measure of 90°
We need to choose statement which is not true. We can see the attachment to shape of circle.
As we can see O is the center of circle. A and B are two points on circle.
So, OA and OB must be radius of this circle.
1) Segment OA is a radius ( TRUE )
2) Segment OA and OB are perpendicular (TRUE)
Because central angle makes 90°
3) arc AB is a semicircle (FALSE)
Because AOB is not 180°
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Answer: Hence, Option 'D' is correct.
Step-by-step explanation:
Since we have given that
Probability of successful outcome = 0.7
Probability of unsuccessful outcome = 0.3
Amount he get for successful outcome = $900
Amount he lost for unsuccessful outcome = -$1800
We need to find the expected value of return when there is successful outcome:
P(Success)× Amount for successful
Hence, Option 'D' is correct.
Answer:
So will be equivalent to
in radical form
Step-by-step explanation:
We have given expression
We have to write this in radical form
We know that if any fraction is in exponential form then if we write this in radical form then in radical form the exponent come inverse of its number
So can be written in radical form as
So will be equivalent to
in radical form
