Answer:
the sum of 4 and a number
4 plus a number
Five Hundred is in word form to put it in standard notation, we just write he number like so 500.
(3x² + 5xy - 2y²)
3x² + 5xy - 2y² <em>(rewrite the expression) (write 5xy as a difference)</em>
3x² + 6xy - xy - 2y² <em>(factor the expression) (factor out 2x from the expression)</em>
3x x (x + 2y) -y x (x + 2y) <em>(factor the expression) (factor out x + 2y from the expression)</em>
<em>Solution</em> : (x + 2y) x (3x - y)
AB = AC, so this is an isosceles triangle, then angle B=angle C =66⁰.
m∠BAD = m∠CAD, so AD is a bisector.
In an isosceles triangle, bisector is also median and height.
So AD is perpendicular bisector.
So angle x = 90⁰.
In triangle ABC
m∠A+m∠B+m∠C=180⁰
m∠A+66+66=180
m∠A=180-66-66=48⁰
m∠A=48⁰
AD is a bisector of A, so y=m∠A/2=48⁰/2=24⁰
x=90⁰, y=24⁰
Answer is A
