Taylor has a painting she paid 1 million yen for while in Japan. At the time, the exchange rate was 1 dollar to 126 yen. If a friend offers $2,000 dollars for the painting would Taylor profit? Show your reasoning

Step-by-step explanation:

Given

Cost price of the painting = 1 million yen

Convert to dollars

Since 126 yen = 1 dollars

1 million yen = x

Cross multiply

126x = 1,000,000

x = 1,000,000/126

x = $7,936.5

Hence the cost price in dollars is $7,936.5

If a friend offers $2,000 dollars for the painting would Taylor profit, the selling price would have been $2000

Profit formula = Selling price - Cost Price

Profit = 2000 - 7,936.5

Profit = -$5936.5

Since the profit is negative, this means that taylor would have made a loss of 5936.5 if sold at $2000

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.