Hey can someone help me?
If f(x) = 5x, what is f(x)?
5- = (3) ا

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

True or false? a circle could be circumscribed about the quadrilateral below.

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