Julia leans a 18-foot ladder against a wall so that it forms an angle of 68° with the
1 answer:
The length of the wall is approximately 16.7ft high.
To solve this problem, we would use trigonometric ratios.
The sine angle between any two body is the ratio between the opposite and hypotenuse.
Data given;
- angle = 68 degree
- hypotenuse = 18 foot
- opposite = ?
From the above calculation, the length of the wall is approximately 16.7ft
Learn more on trigonometric ratio here;
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Answer:
b. Because the probability of being 15 or more correct is 0.0207, it is likely that she is just guessing at the questions.
Step-by-step explanation:
-This is a binomial probability distribution with p=0.5, n=20 and x=15.
The function is expressed as:
We calculate the probability of guessing 15 or more correctly:
The probability of passing, guessing 15+ correctly, is 0.0207. This probability is very low and it is it is likely that she is just guessing at the questions