Answer:
736x-89
Step-by-step explanation:
i think all you can do here is add the numbers that have an X in them so adding 689x+47x=736x and you leave the 89 so it becomes 736x-89
Answer:
2x^2+4x-30=0
Step-by-step explanation:
2x^2+10x-6x-30=0
2x(x+5)-6(x+5)=0
(2x-6)(x+5)=0
2x-6=0 x+5=0
x=6/2 x=-5
x=3
Answer:
A is false
b is true
c is false
d is false
Step-by-step explanation:
If r is negative, the denominator of the formula for the sum of the series is positive and greater than 1.
If the initial term is divided by a positive number greater than 1, the result is a number smaller than the initial term.
So, if the initial term is positive, then the series will converge to a number less than the initial term. For -1<r<0, an example with a1>0, such as 1000-100+10-1+...