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andrey2020 [161]
3 years ago
8

Please Someone help do not understand it ASAP

Mathematics
1 answer:
MatroZZZ [7]3 years ago
4 0

Answer:

1a) 90 = 2y + 2(2x)        1b) 45 - 2x = y          

Step-by-step explanation:

1a) 90 = 2y + 2(2x)        

 

1b) 90 = 2y + 2(2x)           Use the equation from above and multiply

90 = 2y + 4x

-4x          - 4x               Subtract 4x from both sides

90 - 4x = 2y                 Divide both sides by 2

45 - 2x = y

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Answer:

We must prove that (c+a)(c+d) = (b+c)(b+d)

  1. Let us use principles from mathematical induction
  2. \frac{a}{b}  =  \frac{b}{c}  =  \frac{c}{d}  = x
  3. a=bx , b=cx, c=dx
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3 years ago
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