The differential equation y+y2=(y5+x)y′ can be written in differential form: M(x, y)dx+N(x, y)dy=0 where M(x, y)= , and N(x, y)= . The term M(x, y)dx+N(x, y)dy becomes an exact differential if the left hand side above is divided by y2. Integrating that new equation, the solution of the differential equation is =C.

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In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

Select the correct answer from each drop-down menu. the table shows the annual sales revenue for different types of automobiles from three automobile manufacturers. sales revenue (millions of dollars) suv sedan truck marginal total b & b motors 22 15 9 46 pluto cars 25 27 10 62 panther motors 26 34 12 72 marginal total 73 76 31 180 the company with the highest percentage of sales revenue from sedans is . of the annual sales revenue from suvs, the relative frequency of pluto cars is .