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Virty [35]
3 years ago
13

There are 300 students in the middle school, 4 seventh graders are running for class president. Which type of survey below would

give biased results?
A) Survey 30 middle school students
B) Survey 30 7th graders
C) Survey 70 middle school students
D) Survey all middle school students
Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
7 0

Answer:

B

Step-by-step explanation:

Surveying 30 7th graders would give biased results, because 4 seventh graders are running for class president, meaning that 7th graders would be more likely to vote for their fellow classmates who are running

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Aaden is 1.75 meters tall. At 11 a.m., he measures the length of a tree's shadow to be 37.65 meters. He stands 32.9 meters away
Ratling [72]

The relationship between Aaden and the tree's height is an illustration of equivalent ratio

The height of the tree is 2.00 meters

At 11 a.m, we have:

\mathbf{Aaden = 1.75m}

\mathbf{Tree\ Shadow = 37.65m}

\mathbf{Aaden\ Shadow = 32.9m}

So, we make use of the following equivalent ratio

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This gives

\mathbf{1.75: Tree = 32.9: 37.65}

Express as fractions

\mathbf{\frac{Tree}{1.75} = \frac{37.65}{32.9}}

Multiply both sides by 1.75

\mathbf{Tree = \frac{37.65}{32.9} \times 1.75}

\mathbf{Tree = 2.00}

Hence, the height of the tree is 2.00 meters

Read more about equivalent ratios at:

brainly.com/question/18441891

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