Answer:
Step-by-step explanation:
(-3/9 + 4/3)+ a = 0
first solve our terms in the parentheses by adding them
to do this we have to find the lcd ( lowest common denominator)
9 works for both so I multiply both halves of 4/3 by 3 to get my denominator to 9 the other fraction is already at a denominator of 9 so we leave it alone
(-3/9 + 12/9)+ a=0
then add
(9/9)
9/9=1 SO WE SIMPLIFY
1+a=0
now we isolate our variable (a) to do this we subtract 1 from both sides of our equals sign to get the answer
a=-1
hope this helps
Answer:
x=5
Step-by-step explanation:
esa es la respuesta correcta
Answer:
Converges
Sum = 20.8333
Step-by-step explanation:
A geometric series has a general formula of:
Where 'a' is the initial term, 'n' is the number of terms, and 'r' is the constant ratio. If |r| < 1 than the series converges.
In this particular case, the initial term is a=25, and each term is being divided by -5, or multiplied by -0.2, so the general form would be:
Since 0.2 < 1.0, the series converges.
The sum of the series is given by:
The sum is 20.8333.
The correct answer would be A. x=20/3 because it is proportional.<span />