Answer:
i think its -1⁰
Step-by-step explanation:
............
Answer:
b
Step-by-step explanation:
ANSWER
EXPLANATION
The sum of the first terms of a geometric sequence is given by;
Where , is the number of terms and is the first term.
When , we have , we get;
Answer:
4/9
Step-by-step explanation:
Answer:
x = 6
Step-by-step explanation:
If A, B and C lies on a straight line in order, then;
AB+BC = AC
x+12+2x-4 = 26
x+2x+12-4 =26
3x+8 = 26
3x = 26-8
3x = 18
x = 18/3
x = 6
Hence the value of x is 6