B) aº – 49
f) 2a? - 72
j) 8xy - 18xy

If sin θ=24/25 and 0 less than or equal to θ less than or equal to π/2, find the exact value of tan 2θ. answers; a) -527/336 b) -336/527 c)7/24 d) 24/7

What is the base of 1/9 to the power of 2

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)