First of all, the average speed is the ratio between the distance traveled and the time elapsed. So, the average speed of a car that travelled 720 kilometers in 6 hours is
kilometers per hour.
As for the second exercise, you can simply write this proportion:
Because we expect the distance traveled in 3 hours to be proportional to the distance traveled in 2 hours, if the (average) speed is the same.
Solving for x, we have
Answer:
always
Step-by-step explanation:
. Always. Real numbers are irrational numbers. ... Natural numbers are rational numbers.
Answer:
f(x) = x4 + x3 + 4x2 + 6x –12. -2. -1. 1. 2. 6 Sqrt. i 6 - sqrt. i 6. Sqrt. - Sqrt. 6
Step-by-step explanation:
f(x) = x4 + x3 + 4x2 + 6x –12
A. -2
B. -1
C. 1
D. 2
E. 6
F. Sqrt. i 6
G. - sqrt. i 6
H. Sqrt. 6
I. - Sqrt. 6