Pls help me asap. will give brainlist

Mathematics

1 answer:

Mariulka [41]3 years ago

3 0

Answer:

Answer is 6.12

Step-by-step explanation:

pythagoras Theorem according to

$\sqrt{AB^{2}-BD^{2}} = \sqrt{AD}$

NOW WE FOUND AD,

SO, $\sqrt{AD^{2}+CD^{2} }} = \sqrt{AC^{2} } = 6.12$ YOU WILL FOUND THE SOLUTION WHEN YOU ENTER THE Value

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How do you do the pythagorean theorem?

SVEN [57.7K]

You take a right triangle and find the lengths of the two sides that are vertical and horizontal. Then, using the formula a^2 + b^2 = c^2, find the length of C

(aka: Hypotenuse)

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3 years ago

The two dot plots below compare the forearm lengths of two groups of schoolchildren:

Angelina_Jolie [31]

Answer:

Group A, because seven children have a forearm length longer than 10 inches

Step-by-step explanation:

Create the dot plots based on the given information (please see attached images).

Group A = blue dots

Group B = red dots

From inspection of the attached dot plots, we can see that Group A appears to have the longer average forearm length. This is because 7 children have a forearm length of longer than 10 inches.

To calculate the average forearm length, sum all data values and divide by the total number of data values.

$\textsf{Average of Group A}=\dfrac{ 3 \times 10 + 4 \times 11 + 3 \times 12}{10}=11$