Determine whether the lines l1 and l2 given by the vector equations are parallel, perpendicular, or neither. l1: r(t) = (-4 + 4t)i + (5 + t)j l2: r(s) = (2 + 2s)i + (2 - 8s)j

Solve the equation below: (x+4)/6x=1/x a. x=2 b. x=0,2 c. x=-2 d. x=0,-2

Which expression shows the sum of the polynomials with like terms grouped together

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?