3 years ago

Please help with work

Mathematics

1 answer:

yawa3891 [41]3 years ago

6 0

Answer

If one of your options are six then choose it

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Suppose the average math SAT score for students enrolled at local community college is 490.4 with a standard deviation of 63.7.

lakkis [162]

Answer:

Option B) 9.1

Step-by-step explanation:

We are given the following in the question:

Average score = 490.4

Standard deviation = 63.7

Sample size, n = 49

Formula:

$=\dfrac{\sigma}{\sqrt{n}}$

Putting values, we get,

Standard error =

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{63.7}{\sqrt{49}} = 9.1$

Thus, the correct answer is

Option B) 9.1

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The perimeter of an object is the sum of its side lengths. For example, the

vivado [14]

Answer:

5 inches

Step-by-step explanation:

23 - 10 - 8 = 5 inches

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Distribute 5/7 through the parentheses and add like terms after.

Answer: 11/7x + 11/35y

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Find the area of the trapezoidal cross-section of the irrigation canal shown below. Your answer will be in terms of h, w, and θ.

Setler [38]

The answer is ：h^2/tanθ+wh

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