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xz_007 [3.2K]
3 years ago
12

Twenty students in Class A and 20 students in Class B were asked how many hours they took to prepare for an exam. The data sets

represent their answers.
Class A: {2, 5, 7, 6, 4, 3, 8, 7, 4, 5, 7, 6, 3, 5, 4, 2, 4, 6, 3, 5}
Class B: {3, 7, 6, 4, 3, 2, 4, 5, 6, 7, 2, 2, 2, 3, 4, 5, 2, 2, 5, 6}

Which statement is true for the data sets?

A.
The mean study time of students in Class A is less than students in Class B.
B.
The mean study time of students in Class B is less than students in Class A.
C.
The median study time of students in Class B is greater than students in Class A.
D.
The range of study time of students in Class A is less than students in Class B.
E.
The mean and median study time of students in Class A and Class B is equal.
Mathematics
1 answer:
ruslelena [56]3 years ago
6 0

Answer:

E

Step-by-step explanation:

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An angle is 88° more than its supplement. What is the angle's measure?
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Work:
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Find the area of the parallelogram shown below. 7 3 8 square units​
ss7ja [257]

Answer:

21 square units.

Step-by-step explanation:

The area of a parallelogram is just the base times height.

In this case, the base is 3, as the height is 7, so the area of the parallelogram is 21 square units.

Another way you could try solving this is by sliding the upper triangle down, and you'll end up with a rectangle, with side lengths 3 and 7. Multiplying this out gives us a final area of 21 square units.

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5 0
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Find the coordinates of the other endpoint of the​ segment, given its midpoint and one endpoint.​ (Hint: Let​ (x,y) be the unkno
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Step-by-step explanation:

Hey, there!!

Here, one point is A(10,8) and P(8,5) is the midpoint.

Let B(x,y) be the another end point.

Now,

Using midpoint formulae,

p(x.y) =  \frac{x1 + x2}{2} . \frac{y1 + y2}{2}

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Since they are equal,equating with their corresponding elements we get,

8 =  \frac{10 + x}{2}

or, 16 = 10 + x

or, x=16-10

Therefore, x = 6

Now,

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or, 10 = 8 + y

or, y = 2

Therefore, The coordinates of another point are B(6,2)

<em><u>Hope it helps</u></em><em><u> </u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

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4 years ago
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