A man drives from Ibadan to Oyo, a distance of 60km. If he drives at 100km/hr where the surface is good at 40 km/hr where it is bad, it takes him a total of 54minutes. Find the number of Kilometres of good surface​

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.

sorry i just need to anwers this to get points

step-by-step explanation: