Answer is b or the second option
Step-by-step explanation:
a = 4 first term, r = ?, T10 = 100.
Tn = ar^n - 1 formula for g.p
T10 = 4r^ 10 - 1
100 = 4r^9
Divide both side by 4
100/4 = 4/4r^9
25 = r^9 take the 9th root of both side
9√25 = 9√r^9
r = 9√25
To find the nth term
Since Tn = ar^n - 1
Answer:
2
Step-by-step explanation:
2 km per trip x 2 trips = 4 km
Divide everything by 9 to get y by itself.
10 chickens lay 2 eggs each. But 2 chickens lay 3 eggs each
