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Well lets see

7 x 5=35

7 x 5=35

7 x 6=42

6 x 4=24

6x4=24 

Now we add all this up so 

35+35+42+24+24 = 160

Tell me if I have to divided any by 1/2 please!

We have 3 rectangles  whose combined area =  W x H =

7x  5  

7 x 5

7 x 6

And we have two triangles each with a base of 6 and a height of 4

Work through this and I'll help if you get stuck......

Yeah

~Nickolas

Yeah 

EXCELLENT   !!!!!

GOOD JOB  !!!!

(It has two factors and the factor (3+y) has to terms)

~Nickolas

OK....that's part of the answer......what's the other part ???

Yeah 

280 then becase 

100in * 180in= 280in 

YEP!!!! ⇒        

Surface area   = base area   + area of 4 congruent triangles forming the sides

Base area  =  area of a square =  (10 * 10 )  = 100 in^2

Area of each triangle  = (1/2) (base) (height) =  (1/2) (10) (9)

So...total area of sides =  4 (1/2) (10) (9)  = 2 * 10 * 9  = 180  in^2

So.....what's the answer, Nick ???

So expression IV is equvlint 

it has two factors 

Simplify  expression 1

3n + 7 + n +  4n  =

8n + 7

Which two are equivalent  ???

(3 + y)   has 2 terms

(3 + y) * 7

   ↑         ↑

first      second

factor   factor

So....what's the answer  ???

Thanks! ]

12 + 16     ⇒  correct

I see were mesuring the distance of each unit in a way..... 

The easiest way to see this is with a graph :

We have a TRAPEZOID here, Nick......the area  =

(1/2) height * ( sum of the base lengths)  =

(1/2) AB * ( AD + BC)  =

(!/2) (6) ( 5 + 9)  =

(1/2)(6) ( 14) =

3 * 14  =

42 units^2

Does this make sense ???

Thanks Guest! 

answer is 1/2 number 3 down

or 

12+16y

4*3=12

4*4=16

12+16=28

the answer is 28y

4(3 + 4y)  =  

[distribute the 4 outside the parentheses over the terms inside]

4*3  + 4*4y =   ???

Can you finish it, Nick ???