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BaLLatris [955]
3 years ago
8

The number of​ _______ for a collection of sample data is the number of sample values that can vary after certain restrictions h

ave been imposed on all data values.
Mathematics
1 answer:
NISA [10]3 years ago
8 0

Answer:

Degrees of freedom

Step-by-step explanation:

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Suppose two rectangles have the same area. Must they have the same length and width? Explain.​
Monica [59]

Answer:

no

Step-by-step explanation:

Two rectangles having the same area do not need to have the same length and width. The length and width of the rectangle are just factor pairs of the number that is the area. For example, if the area was 12, the side lengths would be 1 and 12, 2 and 6, or 3 and 4. As you can see, those aren't the same lengths and widths. A rectangle may be 1x12 and another may be 3x4, but they have the same area.

5 0
3 years ago
If the slope of line l is x, and the slope of line m is x+2, and l⊥ m, what is x?
salantis [7]

Answer:

The answer to your question is:  x = -1

Step-by-step explanation:

Data

slope of l = x

slope of m = x +2

they are ⊥

Process

If they are ⊥, then,     x + 2  = - 1/x

                                  x(x + 2) = -1

                                  x² + 2x = -1

                                  x² + 2x + 1  = 0

                                 (x + 1)² = 0

                                 x + 1 = 0

                                x = -1

6 0
3 years ago
The mass of a tin containing 5000cm³ paint is 7 kg. if the mass of the empty tin, including the lid is 0.5 kg, calculate the den
wlad13 [49]

Answer:

Answer is 1.5g/m^3 Hope it will help you.

7 0
3 years ago
At a competition 24 of the 40 members of a middle school band won a medal.what percentage of the band won a medal?
Maru [420]

Answer:

60% of the band won a medal.

Step-by-step explanation:

=24/40*100

=2400/40

=60%

Therefore, 60% band won a medal.

7 0
3 years ago
4x + 10y = 2<br> -4x + 8y = 16
alexdok [17]

32x + 80y = 8y - 4x

36x = -72y

x = -2y

2y = 2

y = 1

x = -2

5 0
2 years ago
Read 2 more answers
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