Which of the following is not an example of a quadratic function? 1. f(x)= (3x-2)(4x +7) 2. f(x) = (2x-1)2
3. f(x)= -7x²+8X
4. f(x)= 8x4–3x+5x2

4. f(x) = 8x^4 – 3x + 5x^2

Step-by-step explanation:

In choices 1., 2., and 3., each function is a 2nd degree function since the term with the highest degree has an exponent of 2 on x. In choice 4., the function is a 4th degree function since there is a term with x^4, and that is the highest exponent on x.

4. f(x) = 8x^4 – 3x + 5x^2

30 miles

step-by-step explanation:

we know that 60 seconds equals 1 minute and 60 minutes 1 hour

44 ft       60 sec     60 min     158400   ft

  *   *   =

1 sec       1 min       1 hour         hour

we know that there are 5280 ft per mile

158400   ft       1 mile         30 miles

  *   =

1   hour               5280 ft     1 hour

so in 1 hour   it can travel 30 miles