Acar is traveling on a small highway and is either going 55 miles per hour or 35 miles
per hour, depending on the speed limits, until it reaches its destination 200 miles
away. letting x represent the amount of time in hours that the car is going 55 miles per
hour, and y being the time in hours that the car is going 35 miles per hour, an equation
describing the relationship is:
55x + 35y = 200
a. if the car spends 2.5 hours going 35 miles per hour on the trip, how long does it
spend going 55 miles per hour?
b. if the car spends 3 hours going 55 miles per hour on the trip, how long does it
spend going 35 miles per hour?
c. if the car spends no time going 35 miles per hour, how long would the trip take?
explain your reasoning.

answer: b. f(x) = (x + 2)^3 (x^2 - 7x + 3)^4

step-by-step explanation:

polynomials always have as many roots as their order. this is a 4th order polynomial- hence 4 roots!

complex roots of polynomials always come in pairs. the quadratic equation has the "+/-" in that will alwaysgenerate m+ni amd m-ni, so 7-2i must be a root of this polynomial equation.

the order of the numerator and denominator are both 2. so the horizontal asymptote is y=a2/b2 =7

verticle asymptotes are the forbidden x-values. f(x) becomes undefined at x=-3 because this value will cause a zero denominator.

a graph of r(x) will have vertical asymptotes at ±1 because these values will make the denominator zero. so the domain of the function cannot include ±1.

you 're wlecome! : )

cretdit to source

dont know

step-by-step explanation:

p< -25

t> 12

r> 17

step-by-step explanation: