When rationalizing the denominator we multiply by the value of. A. 0

B. 1

C. 2

D. 3

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Can someone tell me if this is perpendicular? !