Here's the picture, if anyone still needs it.
A class of 25 students took a spelling test. Two students scored 100 on each test, nine students scored 95 on each test, ten stu
2 answers:
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Given:
PQRS is a circle, PQT and SRT are straight lines.
To find:
The value of x.
Solution:
Since PQRS is a circle, PQT and SRT are straight lines, therefore, PQRS isa cyclic quadrilateral.
We know that, sum of opposite angles of a cyclic quadrilateral is 180 degrees.
Now, SRT is a straight line.
(Linear pair)
...(i)
According to the Exterior angle theorem, in a triangle the measure of an exterior angle is equal the sum of the opposite interior angles.
Using exterior angle theorem in triangle QRT, we get
Therefore, the value of x is 103 degrees.
Please see the attached graph to see f(x) = (x - 3) ^2 +5 graphed.
