2x + 2y = 6 . . . . . (1)
x + 3y = -1 . . . . . (2)
(1) x 3 => 6x + 6y = 18 . . . . . (3)
(2) x 2 => 2x + 6y = -2 . . . . . (4)
(3) - (4) => 4x = 20
x = 20/4 = 5
Answer:
70.4 meters
Step-by-step explanation:
A to B: 40²+10²=c² = 1600+100=c² = 1700=c² = c=√1700 = 41.23
B to C: 25²+15²=c² = 625+225=c² = 850=c² = c=√850 = 29.15
41.23+29.15=70.38
Answer:
see below
Step-by-step explanation:
to hundredths : 326.63
to tenths : 326.6
to ones : 327
to tens : 330
to hundreds : 300
Answer:81.02
Step-by-step explanation:se resta el costo de la bicicleta ($150) menos el dinero que tiene en la alcancía (68.98) y lo que salga es el resultado
For this case we have an equation of the form:

This equation in vertex form is:

where (h, k) is the vertex of the parabola.
We have the following function:

We look for the vertice.
For this, we derive the equation:

We equal zero and clear the value of x:

Substitute the value of x = -7 in the function:

Then, the vertice is:

Substituting values we have:
Answer:
The quadratic function in vertex form is: