The perimeter of triangle abc is given by the expression 3x2 - 7x + 2.
if ab = 2x - 10x +6 and bc = x-x-4. write an expression in simplest form and standard
form to represent side ac.

Question 1:

For this case we must simplify the following expression:

We eliminate the parentheses taking into account that:

We group similar terms:

We take into account that:

Same signs add up and the same sign is placed

Different signs are subtracted and the major sign is placed

Question 2:

For this case we must simplify the following expression:

We eliminate the parentheses taking into account that:

We group similar terms:

We take into account that:

Same signs add up and the same sign is placed

Different signs are subtracted and the major sign is placed

Question 3:

For this case we must simplify the following expression:

We eliminate the parentheses taking into account that:

We group similar terms:

We take into account that:

Same signs add up and the same sign is placed

Different signs are subtracted and the major sign is placed

Question 4:

For this case we must simplify the following expression:

We eliminate the parentheses taking into account that:

We group similar terms:

We take into account that:

Same signs add up and the same sign is placed

Different signs are subtracted and the major sign is placed

Question 5:

For this case we have that by definition, the perimeter of the triangle will be given by the sum of its sides. That is to say:

We simplify the right side of the equation:

We cleared AC:

75

step-by-step explanation:

la parábola es el lugar

geométrico en el cual los puntos tienen una distancia idéntica, equidistantes,

de un punto denominado foco, f, y una recta denominada directriz

el radio vector de una

parábola es el segmento que existe entre un punto cualquiera y el foco.

por la ecuación se observa

que la parábola abre hacia la derecha, por lo cual podemos usar las siguientes fórmulas

la ecuación ordinaria de la

parábola es y^2 = 4px, donde p es la longitud desde el vértice de la parábola al

foco.

la fórmula de la directriz

es x + p = 0

resolviendo:

y^2-9x = 0

y^2 = 9x

4p = 9, entonces p = 9/4

entonces el foco tendrá la

coordenada f(9/4,0)

la directriz vendrá

expresada por

x + p = 0

x = -p

x = -9/4

el problema indica que la

ordenada es igual a 6, entonces

(6)^2=9x

x = 36/9

x = 4

entonces el punto al cual

hay que obtener la distancia será p(4,6)

calculando se tendrá: pf = 

pf = 6,25 u

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step-by-step explanation: