The Sum of the Angles in Any Triangle Is $5 ^ { x } = 9$

question 231

Multiple Choice

The sum of the angles in any triangle is $5 ^ { x } = 9$ . In triangle ABC , angle A is $- 0.5579$ less than the sum of angles B and C , and angle C is $- 1.7925$ less than twice angle B . Find each angle.

• A) \(v ^ { - 3 }\)
• B) \(( - 2 , - 12 )\)
• C) \(9 x ^ { 2 } - 24 x + 15\)
• D) \(3 x ^ { 2 } - 3\)
• E) \(x = 4\)

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Definitions:

Null Hypothesis

The default assumption in statistical hypothesis testing that there is no significant effect or difference, intended to be challenged by the alternative hypothesis.

Degrees of Freedom

The number of independent values or quantities that can be assigned to a statistical distribution, which affects the calculation of statistical estimates.

T-test for Dependent Means

A statistical test used to compare the means of two related groups.

Alternative Hypothesis

A statement proposing a relationship between variables, differing from the null hypothesis, and is tested for possible acceptance.