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scoundrel [369]
3 years ago
12

Evaluate the expression 7^2/ x^2 - 2 for x = 3

Mathematics
1 answer:
vovikov84 [41]3 years ago
4 0

Answer:

7

Step-by-step explanation:

7²/x²-2 when x=3

49/3²-2

49/9-2

49/7

answer=7

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Given these scores: 31, 32, 32, 33, 34, 35, 35, 35, 35 What number is the median? What number is the mode?
irinina [24]
For this case we have the following data:
 31, 32, 32, 33, 34, 35, 35, 35, 35
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 Mode is given by the most repeated data:
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 Answer:
 
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5 0
4 years ago
Read 2 more answers
Concerns about climate change and CO2 reduction have initiated the commercial production of blends of biodiesel (e.g., from rene
OverLord2011 [107]

Answer: (0.9460\ ,\ 0.9500)

Step-by-step explanation:

Given : Population mean : \mu=0.9480

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\mu\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

i.e. 0.9480\pm (1.96)\dfrac{0.0060}{\sqrt{35}}

\approx0.9480\pm0.0020=(0.9480-0.0020\ ,\ 0.9480+0.0020)\\\\=(0.9460\ ,\ 0.9500)

Hence, the required interval=  (0.9460\ ,\ 0.9500)

4 0
3 years ago
I am between 24 and 34 . you say my name when you count by twos from zero. you say my name when you count by fives from zero. wh
jonny [76]
The answer is 30

2 * 15 = 30
5 * 6 = 30
30 is between 24 and 34
4 0
3 years ago
Write and equation of the line that passes through 2,2 and is parallel to the line y=7x
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Answer:

y = 7x+2

Step-by-step explanation:

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