.sarah donated 1/10 of her salary to an orphanage, 1/3 of her spent on flared sood, 1/4 of salary on rent & electricity and 1/20 of her salary on telephone. she donated some amount to the prime minister relief fund for pandemic affected victims. she was left with ₹ 3000. if her monthly salary is ₹ 30,000 find the amnout she donated and the amnt donated to the prime minister fund

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0

except if the answer is in the value of money, then, it will matter. it will have to be $0.40, but i can tell this is not a money question, so .4 should be the right one.

its d. trust me just answer make the test just do it

the answer is d d.

surface area: 4,644,025 pi

volume: 1,667,978,979 pi