The profile of the cables on a suspension bridge may be modeled by a parabola. the central span of the bridge is 1230 m long and 140 m high. the parabola y equals 0.00037 x squared gives a good fit to the shape of the cables, where startabsolutevalue x endabsolutevalue less than or equals 615, and x and y are measured in meters. approximate the length of the cables that stretch between the tops of the two towers.

the transverse axis of a hyperbola is the line that contains the two vertices and the two focuses.

in this example (hyperbola of equation x^2/2 - y^2/4 = 1), the transverse axis is the  x-axis  . 

step-by-step explanation:

he sells x mount because thats eqivilqant to the maz and then divided into quarters

step-by-step explanation:

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for