Is 7 a factor of 56w - 7?

Which pair of lines is parallel? a. y=4x+1 and y+4=5 b. y=-2+x and 2y-2x=-2 c. y=1/4x + 2 and y-2=1/2x d. y=1/5x+1 and 5y+x= 10

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)