Given:
In triangle ABC, AB = 30, BC = 16, AC = 34 and measure of angle B is 90 degrees.
To find:
The value of Sine of angle A.
Solution:
In a right angle triangle,

In the given triangle ABC,



Therefore, the correct option is A.
Answer: 0.1010052
Step-by-step explanation:
Given : Significance level : 
Alternative hypothesis : 
The test statistic value : 
Since , the alternative hypothesis is two-tailed, so the test is a two-tailed test.
Using standard normal distribution table for z, we have
The P-value of two-tailed test will be :-

Hence, the P-value = 0.1010052
B
I think it the most likely answer to me but I could be wrong