Find the distance between the lines with equations 7x - 2y - 2 = 0 and y = 7/2x - 10

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r