Polynomial Identities and Proofs

How to solve for this problem with every step?
x and y

y^3+x^2=(y+x)(y^3-yx+x^3)

The graph represents the gallons of water in a water tank with respect to the number of hours since it was completely filled

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x

The life (in hours) of a magnetic resonance imagining machine (mri) is modeled by a weibull distribution with parameters β = 2 and δ = 370 hours. (a) determine the mean life of the mri. (round your answer to 2 decimal ) determine the variance of the life of the mri. (round your answer to 1 decimal ) what is the probability that the mri fails before 250 hours? (round your answer to 4 decimal places.)