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3 years ago

Please help me with this question I don't understand it !??

Mathematics

1 answer:

nikdorinn [45]3 years ago

3 0

Answer:

Step-by-step explanation:

M is 24 degrees and so assuming that x is almost on the line m is. I would pick 24 because X is almost on the same line as M

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Quadrilateral ABCD is similar to Quadrilateral EFGH. Diagonal AC has length 7 and diagonal EG has length 13. What is the scale f

olasank [31]

Answer:

$\large \boxed{\text{A. }\dfrac{13}{7}\text{; B. }\dfrac{17}{14} \text{; C. 507 in}^{2}}$

Step-by-step explanation:

A. Scale factor

When you dilate an object by a scale factor, you multiply its line lengths by the same number.

If EF/AB = 13/7, the scale factor is 13/7.

B. Length of EF

$\begin{array}{rcl}\dfrac{EF}{AB} & = & \dfrac{13}{7}\\\\\dfrac{EF}{\frac{17}{26}} & = & \dfrac{13}{7}\\\\EF & = & \dfrac{13}{7}\times\dfrac{17}{26}\\\\ & = &\dfrac{1}{7}\times\dfrac{17}{2}\\\\ & = & \mathbf{\dfrac{17}{14}}\\\end{array}\\\text{The length of EF is $\large \boxed{\mathbf{ \dfrac{17}{14}}}$}$

C. Area of EFGH

If the lengths in a shape are all multiplied by a scale factor, then the areas will be multiplied by the scale factor squared.

ABCD is dilated by a scale factor of 13/7, so its area is dilated by a scale factor of

$\left(\dfrac{13}{7} \right)^{2} = \dfrac{169}{49}$

The area of its dilated image EFGH is

$\text{Area of EFGH} = \text{147 in}^{2} \times \dfrac{\text{169}}{\text{49}} = 3 \times 169\text{ in}^{2} = 507 \text{ in}^{2}\\\\\text{The area of EFGH is $\large \boxed{\textbf{507 in}^{\mathbf{2}}}$}$

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3 years ago

45 degreese is used in a pie chart to reperesent 6 people. How many people were there altogehter?

KatRina [158]

We can solve this problem by the rule of three.
A complete pie chart has 360º.

45º----------------------6 people
360º-------------------- x

x=(360º*6 people) / 45º=48 people.

Answer; 48 people.

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4 years ago

<img src="https://tex.z-dn.net/?f=simplify%20%5Csqrt%7B21%20-%2020i%7D%20" id="TexFormula1" title="simplify \sqrt{21 - 20i} " al

Valentin [98]

Answer:

o. k this is a required answere

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3 years ago

What is 5/16 x 246/1000

rosijanka [135]

Fraction form 41/400
decimal form .1025

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3 years ago

Hi guys tell me your name (or your nickname )and how many questions you have solved and how many times you have gotten brainiest

iogann1982 [59]

Answer:

my nickname is Kaybe I have answered 74 questions and have been given brainiest 9 times

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3 years ago

Please help me with this question I don't understand it !??​

Please help me with this question I don't understand it !??