Which one of the following is a Geometric Sequence?
Answers
Answer:
The geometric sequence among following is:
Option: B
8 , 4 , 2 , 1 , 1/2 , 1/4 ,.....
Step-by-step explanation:
Geometric sequence--
A sequence is said to be a geometric sequence if each of the number in the sequence is a constant multiple of the preceding term in the sequence.
This constant multiple is known as the common ratio (r)
i.e. the sequence is given by:
a,ar,ar²,ar³,.....
A)
0,1,2,3,......
It is a arithmetic sequence and not a geometric sequence .
Since, each of the term is increasing by 1 as compared to the preceding term of the sequence.
B)
8,4,2,1,1/2,1/4,.....
It is a geometric sequence.
Since, each term of the sequence is a constant multiple of 1/2 of the preceding term of the sequence.
i.e. 8×(1/2)=4
4×(1/2)=2
2×(1/2)=1
1×(1/2)=1/2
and so on.
i.e. the common ratio is: 1/2
C)
-7,10,23,36,.....
This is not a geometric sequence.
Since,
but
D)
2,-3,9/2,-18/4
Here
but
Hence, it is not a geometric sequence.
Related Questions
The sum of the interior angles of a quadrilateral equals 360°.a. Trueb. False
Multiply the problem,
Foil Multiplication (2n+4)•(4n+7)
Suppose theta is in the interval (90, 180). Choose whether the sign of tan(theta/2) is positive or negative.
Select one:
O a. 1
b. 2
O c. 1 or -2
O d. -1 or 2
Answers
Answer:
x=1
Step-by-step explanation:
Steps:
1: Step 1: Subtract 2 from both sides.
4x+2−2=6−2
4x=4
2: Step 2: Divide both sides by 4.
4x4=44x=1
Answer: x=1
Hope this helps.
Answer:
1
Step-by-step explanation:
Given expression:
4x+2=6
Bringing 2 to the other side, it becomes negative..
4x=6-2 = 4
4x=4
again 4 brought to rhs n divided..
x=4/4
x= 1
So the correct option is (a)
67,500 L
67.5 L
6.75 L
0.675 L
Answers
In 675 mL x 1L/1000 mL = 0.675 L
Answers
hope it helped:)
Answers
3.7.
3.7 is less than 3.81 and greater than 3.
Answers
A = a * P / 2, where a is an apothem and P is a perimeter.
P = 8 * 8 m = 64 m
A = 9.7 m * 64 m / 2
A = 620.8 / 2 m²
A = 310.4 m²
Answer:
The area of a regular octagon is 310.4 m².