Ajacket is reduced by 40% in a sale. the cost of the jacket is now £126. pauline says “ 40% of £126 is £50.40. so the jacket originally cost £176.40.” pauline is wrong explain why.

5

step-by-step explanation:

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

other answer is correct. i had used the radius of the radius somehow. a website:

a

step-by-step explanation: