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geniusboy [140]
2 years ago
7

The following are test scores Karen received during the first marking period.

Mathematics
1 answer:
8090 [49]2 years ago
3 0

Answer:

92

Step-by-step explanation:

Put the scores in order:

60, 75, 80, 90, 94, 95, 100, 100

There are 8 numbers, and the middle two numbers are 90 and 94.

90 + 94 = 184

184/2 = 92

So the median is 92.

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Answer:

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Step-by-step explanation:

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How do I solve this question?
Elena L [17]

Answer:

47

Step-by-step explanation:

should be the correct answer

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Find the equation of the tangent line. y=(x^2+x-2)^2 at (-1,4)​
Keith_Richards [23]

Compute the derivative of <em>y</em> = (<em>x</em>² + <em>x</em> - 2)² using the chain rule:

d<em>y</em>/d<em>x</em> = 2 (<em>x</em>² + <em>x</em> - 2) d/d<em>x</em> [<em>x</em>² + <em>x</em> - 2]

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Evaluate the derivative at <em>x</em> = -1 :

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This is the slope of the tangent line to the function at (-1, 4).

Use the point-slope formula to get the equation for the tangent line:

<em>y</em> - 4 = 4 (<em>x</em> - (-1))   →   <em>y</em> = 4<em>x</em> + 8

6 0
3 years ago
The average and standard deviation of a measurement is 15.0 ± 5.0. if 100 students measured the value, how many would you expect
AURORKA [14]

Solution: We are given:

\mu=15, \sigma=5

Using the empirical rule, we have:

\mu \pm \sigma covers 68% of data.

Also the percentage of values below mean = Percentage of values above mean = 50%

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z=\frac{20-15}{5}=1

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4 0
3 years ago
Find the sum of 89 and - 75<br>​
Dominik [7]

Answer:

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Step-by-step explanation:

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8 0
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