the image shows a geometric representation of the function f(x)=x^2+3 written in standard form . what is this function written in vertex form ?

In a school 2/3 of the students study a language of those who study a language 2/5 study french

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.