Answer:
The answer is A I just looked it up on mathaway and it is never wrong
Step-by-step explanation:
Standard form always has the largest coefficients first
8+5=13
13*2=26
26-7=19
19+1=20
20/2=10
10-2=8
100+5=105
105*2=210
210-7=203
203+1=204
204/2=102
102-2=100
4256+5=4261
4261*2=8522
8522-7=8515
8515+1=8516
8516/2=4258
4258-2=4256
Yes, I tested it 3 times with 3 different numbers.
Answer:
b. 
Step-by-step explanation:
The given geometric series is;

The first term of this series is

The common ratio is

The sum to infinity of this series is

Substitute the given values to obtain;

This implies that;


1/2(4x-5) + 5/2 = 10
Use the distributive property:
2x - 5/2 + 5/2 = 10
Use addition property:
2x = 10
Divide both sides by 2:
x = 10/2
x = 5