Question

One-fourth of a certain journey is covered at the rate of 25 km/h, one-third at the rate of 30 km/h and the rest at 50 km/h. Find the average speed for the whole journey. ​

Answer 1

Answer:

(x - 1) is a factor of a polynomial

p(x) = 4x³ + 3x² + 5x + k

find the value of “ k ” .

Solution :

if x - 1 is a factor.

x - 1 = 0

x = 1

on substituting the value,

FINAL ANSWER :

Value of k is -12 .

Step-by-step explanation: