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Natasha2012 [34]
2 years ago
11

PLZ HELP NEED ANSWER NOW. school administrator believes that the mean class GPAs for a given course are higher than the preferre

d mean of 2.75 at a significance level of 0.05, and checks a randomly chosen sample of 50 classes. Create a histogram, and calculate x, the t-statistic, and the p-value.
2.59
2.43
2.96
2.80
2.94
3.07
2.65
2.79
2.61
2.90
3.14
2.78
2.50
2.78
2.52
2.60
2.86
2.88
2.78
3.09
2.82
2.72
2.98
2.68
2.87
2.86
2.78
2.73
2.62
2.77
2.90
3.02
2.73
2.87
2.63
2.98
2.52
2.81
2.91
2.71
3.07
2.89
2.93
2.64
2.94
2.81
2.85
2.89
2.79
2.86
Mathematics
1 answer:
Fudgin [204]2 years ago
5 0

Answer:

i do not know because i am a 4rth grader

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Which is the completely factored form of the following equation?<br><br> 4a4b2−21a2b+5=0
r-ruslan [8.4K]

The completely factored equation is (a²b - 5)(4a²b - 1)

<h3>How to factor equation?</h3>

4a⁴b² - 21a²b + 5 = 0

let's expand the equation

Therefore,

4a⁴b² - 21a²b + 5 = 0

4a⁴b² - 20a²b  - a²b + 5 = 0

Rearrange the equation

4a⁴b² - a²b  - 20a²b + 5 = 0

Let's factorise the equation

4a⁴b² - a²b  - 20a²b + 5 = 0

a²b(4a²b - 1) - 5(4a²b - 1) = 0

Therefore, the completely factored equation is as follows:

a²b(4a²b - 1) - 5(4a²b - 1) = 0

(a²b - 5)(4a²b - 1)

learn more on equation here: brainly.com/question/8842252

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4 0
1 year ago
What’s the correct answer for this question?
mars1129 [50]

Answer: choice A 1/2

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Events A and B are independent if the equation P(A∩B) = P(A) · P(B) holds true.

so

1/3=2/3*p(B)

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7 0
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nordsb [41]

Answer: The answer is C. because all biconditional statements are written w/ if and only if in statements. Hope this helps :)

Step-by-step explanation:

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48x^2-48x+12

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