Which sequence is a geometric progression?
A 2 4 6 8
B 1 1 2 3
С 1 2 4 8
D 1 3 5 7

c) 1 2 4 8

Step-by-step explanation:

Explanation :-

Geometric sequence

The sequence is of the form a , a r , a r² , a r³ ,.......

'a' is the first term

'r' is the common ratio

1 , 1(2) , 1( 2)² , 1( 2 )³ ......  is a geometric sequence

here a = 1

common ratio  

The sequence 1 2 4 8 is a geometric sequence

constant of proportionality = 3 and the equation is c = 3p.

step-by-step explanation:

c = kp   where c = amount of caffeine in mg., p = oz of pepsi and k is the constant of proportionality.

substituting the values given:

24 = 8k

k = 3.

the same value of k will be obtained if we substitute the other given values.

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.