3) What is the value of angle x in the figure? Please show your math work step by step and don’t forget the unit.

Simplify 5 square root of 7 end root plus 12 square root of 6 end root minus 10 square root of 7 end root minus 5 square root of 6 . (1 point) 5 square root of 14 end root minus 7 square root of 12 5 square root of 7 end root minus 7 square root of 6 7 square root of 12 end root minus 5 square root of 14 7 square root of 6 end root minus 5 square root of 7

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

On a piece of paper graph f(x)=5•(0.4)^x