$\text{Let}\ x=0.\overline{69}\\\\x=0.696969...\qquad\text{multiply both sides by 100}\\\\100x=69.696969...\qquad\text{subtract}\ x\ \text{from}\ 100x:\\\\100x-x=69.696969...-0.696969...\\\\99x=69\qquad\text{divide both sides by 99}\\\\x=\dfrac{69}{99}\\\\x=\dfrac{23}{33}$

7 0

3 years ago

F(x)=x²-3 tell whether the function is quadratic or not?

Misha Larkins [42]

Answer:

state whether this function is quadratic? why or why not?

f(x) = - 3(x - 2)(x + 3)(x + 5)

7 0

2 years ago

If Linda can walk 6 miles in 80 minutes,

Marta_Voda [28]

I think it is 4.5 miles per hour

8 0

3 years ago

Graph the equation y=-4/3x + 2​

Graph the equation y=-4/3x + 2