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laiz [17]
3 years ago
6

ZABD and ZDBC are supplementary angles.

Mathematics
2 answers:
Dominik [7]3 years ago
7 0

Answer:

Solution given:

x+120°=180°[linear pair][supplementary]

x=180°-120=60°

x=60° is your answer

Mila [183]3 years ago
4 0
<h3>Answer:</h3>

<u>As above angles are supplementary</u>,

  • x + 120° = 180°
  • x = 180° - 120°
  • x = 60°

<u>Hence, value of x is 60°</u>.

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Answer:

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Step-by-step explanation:

The triangle in the given problem is a right triangle, as the tower forms a right angle with the ground. This means that one can use the right angle trigonometric ratios to solve this problem. The right angle trigonometric ratios are as follows;

sin(\theta)=\frac{opposite}{hypotenuse}\\\\cos(\theta)=\frac{adjacent}{hypotenuse}\\\\tan(\theta)=\frac{opposite}{adjacent}

Please note that the names (opposite) and (adjacent) are subjective and change depending on the angle one uses in the ratio. However the name (hypotenuse) refers to the side opposite the right angle, and thus it doesn't change depending on the reference angle.

In this problem, one is given an angle with the measure of (35) degrees, and the length of the side adjacent to this angle. One is asked to find the length of the side opposite the (35) degree angle. To achieve this, one can use the tangent (tan) ratio.

tan(\theta)=\frac{opposite}{adjacent}

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Inverse operations,

tan(35)=\frac{opposite}{100}

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How many observations are there for each case in a t test for dependent samples?
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In this question,

The dependent t-test also called the paired t-test or paired-samples t-test compares the means of two related groups to determine whether there is a statistically significant difference between these means. Each sample must be randomly selected from a normal population and each member of the first sample must be paired with a member of the second sample.

A dependent samples t-test uses two raw scores from each person to calculate difference scores and test for an average difference score that is equal to zero.

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Hence we c an conclude that the number of observations for each case in a t test for dependent samples is two is the correct answer.

Learn more about dependent t-test here

brainly.com/question/15870238

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Step-by-step explanation:

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