Answer:
9.407x10-11
Step-by-step explanation:
8.18(9.407x(10)−11)10−6(1.15(9.407x(10)−11)10−5)
8.18(9.407x(10)−11)10−6(1.15(9.407x(10)−11)10−5)
Answer:

Step-by-step explanation:
From the question we are told that:
Percentage of student to get A 
Sample size 
Generally Number of student to get A is



Therefore
Probability that one student gets an A grade is mathematically by





<u>ANSWER </u>
The correct answer is option B
<u>EXPLANATION</u>
When we analyse carefully we can see that PQR is mapped on to P'Q'R' by the rule




That is to say the <em>x-coordinates</em> are <em>negated</em>. Hence y-axis is the mirror line.
Since reflection is a rigid motion, the two triangles are congruent. That means the two triangles PQR and P'Q'R' are equal in all respect.
See graph in attachment.