(CEFET-PR) A rua Tenório quadros e avenida Teófilo Silva , ambas retilineas , cruzam-se conforme um ângulo de 30° . O posto de gasolina estrela do sul encontra-se na avenida Teófilo silva a 4000 m do citado cruzamento sabendo que o percurso do posto estrela do sul até a rua Tenório quadros forma um ângulo de 90° no ponto de encontra do posto com a rua Teófilo Silva , determine em quilômetros , a distância entre o posto de gasolina estrela do sul e a rua Tenório quadros ?

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

he spend 5.1 minutes chatting with his friends.

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5.1

step-by-step explanation:

you divide the denominator by the numerator on both sides and if the quotients are equal then the fractions are equivalent

black lol

step-by-step explanation:

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i can tell you jamal now has 3 cookies xd

tommy has 2.

this made me lol.