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xxMikexx [17]
3 years ago
10

If ∠A and ∠B are supplementary and ∠A = 4x – 8 and ∠B = 2x +2, what is the value of x?

Mathematics
1 answer:
Ipatiy [6.2K]3 years ago
7 0
Set them equal together. 4x-8=2x+2. Subtract 2x on both sides. 2x-8=2. Add 8 on both sides. 2x=10. Divide 2 on both sides x=5. Check answer!!!
4(5)-8=12
2(5)+2=12 
12=12
So answer is x=5!!!!
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Answer:

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Step-by-step explanation:

<u>A)  find the linear demand equation</u>

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slope ( m ) = ( y2 - y1 ) / ( x2 - x1 )

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slope intercept is represented as ; y = mx + b

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  hence b = 41500  

hence ; y = -4500x + 41500

The required linear demand equation ( q ) = -4500p + 41500   ----- ( 1 )

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<u>B ) Determine the price the company should charge to maximize revenue from ridership  and corresponding daily revenue</u>

Total revenue ( R ) = qp

                               = p ( -4500p + 41500 )

  hence R = -4500p^2 + 41500p  ------ ( 2 )

To determine the price that should maximize revenue from ridership we will equate R = -4500p^2 + 41500p  to a quadratic equation R(p) = ap^2 + bp + c

where a = -4500 ,  b = 41500 , c = 0

hence p = -\frac{b}{2a}  = - \frac{41500}{2(-4500)} =  4.61

$4.61 is the price the company should charge to maximize revenue from ridership

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where p = $4.61

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