Onvert this system to a second order differential equation in yy by differentiating the second equation with respect to tt and substituting for xx from the first equation. solve the equation you obtained for yy as a function of tt; hence find xx as a function of tt. if we also require x(0)=4x(0)=4 and y(0)=5y(0)=5, what are xx and yy?

Solve the formula ax+ by = c for x.

Astudent found the solution below for the given inequality. |x-9|< -4 x-9> 4 and x-9< -4 x> 13 and x< 5 which of the following explains whether the student is correct? -the student is completely correct because the student correctly wrote and solved the compound inequality. -the student is partially correct because only one part of the compound inequality is written correctly. -the student is partially correct because the student should have written the statements using “or” instead of “and.” -the student is completely incorrect because there is no solution to this inequality.

Convert to the greater unit before finding the perimeters of this rectangle: 6ft. 6in. by 7ft.