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RoseWind [281]
2 years ago
7

Sophomore, junior, and senior students at a high school will be surveyed regarding a potential increase in the extracurricular s

tudent activities fee. There are three possible responses to the survey question...agree with the increase, do not agree with the increase, no opinion. A chi-square test will be conducted to determine whether the response to this question is independent of the class in which the student is a member. How many degrees of freedom should the chi-square test have? A9 B6 C4 D2 E1
Mathematics
1 answer:
vitfil [10]2 years ago
5 0

Answer: C) 4

Step-by-step explanation:

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Solve for x 14 x square+7x-6
irina [24]

Answer:

x=0.450765 or x=−0.950765

Step-by-step explanation:

14x² + 7x - 6

→ Find the product, sum and factors

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Sum = 7

Factors = No factors

→ Since there are no factors utilise the quadratic formula

\frac{-b+-\sqrt{b^{2}-4ac } }{2a}

→ List the values of a, b and c

a = 14

b = 7

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→ Substitute into the formula

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Round 3,942,588 to the nearest thousand.
olchik [2.2K]
Hey there! :D

3,942,588

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B.) There were 15 more questions on the test than the last test.

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