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3 years ago

9

For a school newspaper article, Cienna conducted a survey to find out students’ favorite subjects. She polled all the students i

n Mrs. Lopez’s advanced dance class. Why is her data likely to be skewed?

1 answer:

liraira [26]3 years ago

3 0

Answer:

Yes because she is asking students who love dance so much that they took an advanced dance class.

Step-by-step explanation:

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RP2) 10*10*8=800
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Kamila [148]

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Step-by-step explanation:

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AleksandrR [38]

The answer is:A = 231e^(.0010776*12) = 234 million in 2003
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4 years ago

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3 years ago

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1. The structure of the supports for the hill consists of steel beams that

Darina [25.2K]

a) Parallel for both line segments have the same slope = -5/4

b) 55º

Step-by-step explanation:

a) To verify the parallelism of these line segments, It's necessary to find the slope of each one. Parallel lines share the same slope value:

$m_{BC}=\frac{0-150}{120-0}=-\frac{-5}{4}\\m_{AD}=\frac{0-125}{100-0}=-\frac{5}{4}$

b) If ∠DAB = 125°, what is the measure of ∠CBA? Justify your reasoning.

Those beams do not form a parallelogram because:

Using the formula of distance between those points

$d=\sqrt{(y_{2}-y_1)^{2}-(x_{2}-x_{1})^2$

$\overline {AB}=25\: \: \: \overline{CD}=20\: \: \overline{AD}=160 \: \: \overline{BC}=192$

So this is a trapezoid. And two adjacent angles within a trapezoid are supplementary, so If ∠DAB = 125º then 180 - ∠CBA=55º

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3 years ago