What’s the final horsepower when driving a car in denver (an elevation of 5,280 feet) that’s rated at 300 horsepower? a. 250.4 b. 271.5 c. 252.48 d. 271.28

The Answer is  C  252.48 horsepower

Step-by-step explanation:

To the get better understanding of answer above

First we have to understand that it is a rule of thumb that for every 1000 feet the horsepower reduces by 3 percent.

From the question the car horsepower is 300

 3 percent  of 300 is lost for 1000 feet

 x  percent of 300 is lost  for 5280 feet

 3 percent of 300  = (3 ÷ 100) × 300 =0.03

In term of the relationship between loss of horsepower and altitude

 0.03  = 1000  

    x     =   5280

  cross multiply

           = 252.48

y - y1 = m(x- x1)

y - (-5) = 2/3(x -0)

y + 5 = 2/3x

y = 2/3x - 5

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11