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zloy xaker [14]
3 years ago
15

As part of a science project, Andy surveys several students in his class to determine their energy levels throughout the day. He

asks the students to rate their energy level on a scale from 1 to 10, where 10 is the highest energy level possible and 1 is the lowest energy level possible. Andy then finds the average energy level for the class for each hour after the school day begins until the end of the day. He graphs his data as shown below.
Mathematics
2 answers:
maks197457 [2]3 years ago
8 0

Answer:

if we are doing the same thing it should be D-Andy’s study shows neither correlation nor causation.

Step-by-step explanation:

jenyasd209 [6]3 years ago
8 0

Answer:

It’s D

Step-by-step explanation:

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A positive integer + a negative integer, when the negative integer is farther from 0
Free_Kalibri [48]

Answer:

No

Step-by-step explanation:

5 0
3 years ago
Find the area of the given quadrilateral.<br> Pls :)
Tasya [4]

I think your teacher may have made a typo. Refer to the diagram below. If we ignore segment ZA for now, we can see a rectangle forms with angle W = angle Y = 90. Also, we can see that WX = 6 is the horizontal base and WZ = 8 is the vertical height.

However, the side opposite WZ (which is XY) should also be 8 cm tall, and not 6 cm. If XY was 6 cm, then point Y would move to where point A is located (and the quadrilateral would be WXAZ instead of WXYZ). This new quadrilateral would not have a 90 degree angle at point Y's new location.

In other words, if we want angle Y to be 90 degrees, then side XY must be 8 units long. I have a feeling this is where the typo is, but your teacher might have been intending to say something else.

7 0
3 years ago
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Ann had 45 fliers to post around town. Last week, she posted 1/3 of them. This week, she posted 2/5 of the remaining fliers. How
Gennadij [26K]
First, Ann posted 1/3 of the 45 fliers. 1/3 * 45=15, meaning that she posted 15, leaving 30 fliers. Next, she posted 2/5 of the remaining fliers. 2/5 * 30 = 12, so she posted 12 more fliers. 30-12 is 18, so she has 18 left over.
8 0
4 years ago
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Triangle ABC, ∠ B is the right angle, AB = 36 cm, and BC = 28 cm. If the similar figure DEF, DE = 9 cm what is the area of DEF?
andrezito [222]
AB = 36 cm
BC = 28 cm

Since they are similar figures:

36/28 = 9/EF

36EF = 28*9

EF = 252/36 = 7 cm

Finding the area:

Area = 1/2 * DE * EF

Area = 1/2 * 9 * 7

Area = 31.5 cm^2
5 0
4 years ago
A stockbroker sold 70 shares of stock $14.52 each. what was the total amount of the sale?
Olenka [21]

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$1016.4 - if this is just a simple multiplication question

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