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thats wrong:(

The perimeter is given by :

4 * √[9^2 + 6^2 ] =

4 √117   ft.

Here is what Melody is describing....it's known as the  "complex" plane....

I'm going to answer in statement proof form.

Statement                                                      |  Proof                                                

mANGLE(ABC) is congruent to mANGLE(ADC)      Properties of a Parallelograms

3(BCD)+(BCD)=180                                          Supplementary Property of Parallelograms

4(BCD) = 180                                                   Simplify

BCD=45                                                           Division property of Equality

180-45=ABC                                                     Properties of Supplementary Angles

135=ABC                                                          Simplify

135=ADC                                                          Transitive property of equality

If you have any questions or feedback let me know please!

Hint:

These 2 angles are supplementary.

complex numbers can be graphed on a number plane the horizontal axis is the real part and the vertical axis is for the imaginary part

if the Imaginary part is neg the point will be below the real (x) axis.

I'd post a graph but I am on my phone so I can't. :(

The length of the longer diagonal will be given by :

2 * √[51^2 - 24^2]

i know, that was easy too. my latest ones harder

Just set each equation equal to its opposite side and solve......!!!!

You should be able to figure this one out; it's very easy!

i know that one was easy...

A₁ is 5cm on a side and A₂ is 7cm on a side......

So  ...   A₃ = 5 x 7 = 35 sq cm 

x=(-4.2+5.8)

(0, -7) 

(2, -1)

(5,  8)

(6, 11)

The slope between succssive points is 3

The y intercept is -7

So....the rule is:

y = 3x - 7

9+10=21

21+21= (Wait for it...) 42!

The square root of -2 is irrational, meaning that you cannot simplify it into a regular number. If you have any more questions, feel free to ask! 

Could you please tell me the given parts of the triangle? There are many ways to find the unlabeled leg of a triangle, depending on the scenario. I can help, you just need to state your question better!

It depends, are you talking about the rate of change in a function table or the rate of change for a certain scenario?

Please clarify, I am eager to help!

Please clarify, do you mean a symbol that means a number is to the root of 2? In that case, the symbol is 

If this is not the symbol you are talking about please tell me!

Always glad to help,

$4635.21(1+.08/12)^12*5   =  $ 25099.65