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Amiraneli [1.4K]
3 years ago
5

Find the perimeter.simplify your answer.

Mathematics
1 answer:
Kitty [74]3 years ago
7 0

2×(l+b)

2×(10z+2z-9)

= 2× (12z-9)

= (12z-9)*2...

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Write 3961 in expanded form
nataly862011 [7]

Answer: 3000 + 900 + 60 + 1

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4 years ago
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Find the percentage of students that scored higher than 95.5. Round your answer to the nearest percent.
My name is Ann [436]

Answer:

\% Change = \frac{9}{64} *100 = 14.0625\% \approx 14\%

So then we have approximately 14% of the values higher than 95.5

Step-by-step explanation:

For this case we assume that the info is given on the figure attached.

From this figure we have the following frequencies for each class

Class                  Frequency

___________________________

70.5-75.5                13

75.5-80.5                7

80.5-85.5                6

85.5-90.5                10

90.5-95.5                19

95.5-100.5               9

____________________________

Total                        64

So we have a total of 64 values and we want to find the percentage of students that scored higher than 95.5 so we can use the formula of relative change and we got:

\% Change = \frac{9}{64} *100 = 14.0625\% \approx 14\%

So then we have approximately 14% of the values higher than 95.5

6 0
4 years ago
Find the area of the sector of the circle Radius. 7kmCentral angle. 2pi over 3<br> Show steps
viktelen [127]

9514 1404 393

Answer:

  51.3 km²

Step-by-step explanation:

The area formula is ...

  A = 1/2r²θ . . . . where θ is the central angle in radians

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3 years ago
What is the 44th decimal digit in the decimal representation of 1/11?
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If you start counting the digits after the decimal point,
the odd ones are all zero, and the even ones are all  9 .

So the 44th digit after the decimal point is  9 .


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3 years ago
Law of sines:
Allushta [10]
It's B=30 degrees

since a and b are equal to number 2, they are the same value. Because A is 30 degrees, B is 30 degrees too.
6 0
3 years ago
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