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Mathematics

1 answer:

Andru [333]2 years ago

7 0

1 stem 8 leaf = 18

From the given table the given data is

28, 30, 40, 43, 43, 45, 50, 50

Arrange the data in ascending order.

28, 30, 40, 43, 43, 45, 50, 50

Divide the data in two equal parts.

(3, 28, 40, 43), (43, 45, 50, 50)

Divide each parenthesis in 2 equal parts.

(28, 30), (40, 43), (43, 45), (50, 50)

First quartile is midpoint of 30 and 40.

Third quartile is midpoint of 45 and 50.

Interquartile range of the data set

Therefore the Interquartile range of the data set is 12.5.

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Tan39= x/68<br> Plz help. Will give brainliet

lesya [120]

Answer:

$\huge\boxed{x \approx 55}$

Step-by-step explanation:

We need to note that this is an equation, in which we can solve for x.

$tan(39) = \frac{x}{68}$

We can use a calculator to find the tangent of 39 - we type 39 into the calculator then press the "TAN" button to find it's tangent. We find that to be around 0.81.

We now have the formula simplified down to $0.81 = \frac{x}{68}$ . To solve for x, we want to isolate it on one side, so we can multiply both sides by 68 to get rid of the fraction.