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3 years ago

Pls help me, all of this I’m sending is due by 11:59pm. And my time right now is 9:16pm. So plsss

Mathematics

2 answers:

DiKsa [7]3 years ago

6 0

28y-36
Y=36/28=1.3
Plz say its true:)

yan [13]3 years ago

4 0

Answer:

4(7y - 9)

Step-by-step explanation:

The greatest common factor you can factor out of both monomials is 4.

28y - 36

4(7y - 9)

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Step-by-step explanation:

1 2/3 - 4/5

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3 years ago

The value of a dvd player decreases by 60% each year. If you purchased this dvd player today for $180, how much would the player

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3 years ago

Module 6 What is the line of best fit? Why do we want the sum of the residuals to be as close to zero as possible?

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3 years ago

Two angles are supplementary. Which of the following equations can be used to find the value of the missing angle, x, if the oth

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6 0

3 years ago

Please help!! MathsWatch, Surd Expressions, Clip 207c

dexar [7]

Answer:

$A=(72+36\sqrt{3})\ mm^2$

Step-by-step explanation:

see the attached figure with letters to better understand the problem

Let

a ----> the height of rectangle in mm

b ---> the base of rectangle in mm

step 1

Find the base of rectangle

$b=AB+BC+CD+DE$ ----> by segment addition postulate

substitute

$b=3+3+3+3=12\ mm$

step 2

Find the height of rectangle

$a=FB+CG+GH$ ---> by segment addition postulate

substitute the given values

$a=3+CG+3\\a=6+CG$

Find the length sides CG

Applying the Pythagorean Theorem

$BG^2=BC^2+CG^2$

substitute the given values

$6^2=3^2+CG^2$

$CG^2=6^2-3^2$

$CG=\sqrt{27}\ mm$

simplify

$CG=3\sqrt{3}\ mm$

therefore

$a=(6+3\sqrt{3})\ mm$

step 3

Find the area of rectangle

$A=ab$

we have

$a=(6+3\sqrt{3})\ mm$

$b=12\ mm$

substitute

$A=(6+3\sqrt{3})(12)=(72+36\sqrt{3})\ mm^2$

8 0

3 years ago