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Simora [160]
3 years ago
11

Determine whether a(2,3) b(7.12) and c(-5.-24)

Mathematics
1 answer:
Vilka [71]3 years ago
3 0
Where is the question?
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15 degrees Celsius

Step-by-step explanation:

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Give an example of a real world situation for which there could be a positive correlation
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The sunnier it is outside, the more sunglasses will be worn ☀️
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3 years ago
To estimate the average annual expenses of students on books and class materials a sample of size 36 is taken. The sample mean i
Elena L [17]

Answer:

C) $826.82 to $873.18.

Step-by-step explanation:

Sample mean (M) = $850

Standard deviation (s) = $54

sample size (n) = 36

Z for 99% confidence interval (Z) = 2.576

The confidence interval is determined by the following relationship:

M \pm Z*\frac{s}{\sqrt{n}}

Applying the given values, the lower (L) and upper (U) values are:

850 \pm 2.576*\frac{54}{\sqrt{36}}\\L=\$826.82\\U=\$873.18

The answer is C) $826.82 to $873.18.

6 0
3 years ago
30% of what number equals 9
Bumek [7]

Answer:

The number is 30

Step-by-step explanation:

Of means multiply and is means equals

30% * N = 9

Change to decimal form

.3 * N = 9

Divide each side by .3

.3/.3 *N = 9/.3

N = 30

5 0
3 years ago
Pleaseeeeee o someone help me
julsineya [31]

Answer:

63 cm and 63 cm

Step-by-step explanation:

Both are 63 cm because 9*7 is 63, and those are the measurements of both faces

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