Answer:
Sum = 
Step-by-step explanation:
The given geometric sequence is:
The first term of the sequence is 
The common ratio of the sequence is:
There are 5 terms in total in the given sequence so n = 5
The formula to calculate the sum of finite geometric sequence is:
Using the given values, we get:
Therefore, the sum of given geometric sequence is
3/4x+5/6=5x-125/3
3/4x+5/6-5/6=5x-125/3-5/6
4/3x=5x-85/2
4/3x-5x=5x-5x-85/2
-17/4x=-85/2
(-4*-17/4x)=(-85/2*-4)
17x=170
x=170/17
x=10
The correct answer is:
[C]: "
" .
____________________________________________________Explanation:____________________________________________________Given:
____________________________________________________ 2 / (9x) = 4 / 7 ; solve for "x" ;
____________________________________________________Cross-multiply:
→ (9x)*4 = 2 * 7 ;
→ 36x = 14 ;
Divide each side of the equation by "36" ;
to isolate "x" on one side of the equation; & to solve for "x" ;
→ 36x / 36 = 14 / 36 ;
x = 14/ 36 ;
→ x = 14/36 = (14÷2) / (36÷2) = 7/18 ;
______________________________________________________
The answer is: "
" ;
→ which is:
Answer choice: [C]: "
" .
______________________________________________________
0.7/729 equals 0.00088383838
Step-by-step explanation:
Wendy
-20 = x/2 + 7
-20 -7 = x/2 + 7 -7
-27 = x/2
-54 = x
x = -54
because it's math rule
