can julia cut a triangular patch for a quilt that has side lengths 1 1/2 inches, 2 inches, and 4 inches? i need the explanation
1 answer:
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Andrew can reach a maximum of high up the wall.
The right-angled triangle formed can be solved using the ratio. that is
where is the distance from the foot of the wall to the tip of the ladder where it rests on the wall. Substituting, and solving for
, we get
Since Andrew can reach an extra above the point where the ladder rests against the wall, the maximum height Andrew can paint is
Another solved word problem on trigonometry can be found here: brainly.com/question/12146092
Answer: A. 85.7
Step-by-step explanation:
Given : Two sections of a class took the same quiz.
Section A had 15 students who had a mean score of 80, and Section B had 20 students who had a mean score of 90.
We know that ,
Then , for section A :
Similarly in Section B,
Total scores = Sum of scores in sec A+Sum of scores in sec B
=1200+1800=3000
Total students = Students in sec A +Students in sec B
=15+20=35
Now , the mean score for all of the students on the quiz =
Hence, the approximate mean score for all of the students on the quiz = 85.7
Thus , the correct answer is option A. 85.7.