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nasty-shy [4]
2 years ago
11

+ 2.6.3 Qulz Similar Triangles Question 10 of 10 With similar triangles, the ratios of all three pairs of corresponding sides ar

e equal. O A. True O B. False​
Mathematics
1 answer:
AlladinOne [14]2 years ago
4 0

Answer:

A True

Step-by-step explanation:

tell me if I'm worng

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The figure below is made of two identical triangular prisms. What is the volume of the figure?
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2 years ago
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
Nezavi [6.7K]

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  , \text{Mean}=\dfrac{\text{Sum of observations}}{\text{No. of observations}}

Then , for section A :

\text{Mean score }=\dfrac{\text{Sum of scores in sec A}}{\text{No. of students}}

\Rightarrow\ 80=\dfrac{\text{Sum of scores in sec A}}{15}\\\\\Rightarrow\ \text{Sum of scores in sec A}=80\times15=1200

Similarly in Section B, \text{Sum of scores in sec B}=90\times20=1800

Total scores = Sum of scores in sec A+Sum of scores in sec B

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=15+20=35

Now , the mean score for all of the students on the quiz =\dfrac{\text{Total score}}{\text{Total students}}

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Hence, the approximate mean score for all of the students on the quiz = 85.7

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3 years ago
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