Answer:

Step-by-step explanation:
-The margin of error is calculated using the formula:

-We substitute the values, n=900 and ME=30 in the formula to solve for standard deviation:

Hence, the population standard deviation is 547.1125
Answer:
1/20
Step-by-step explanation:
UWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWUUWU
If you use the same technique from the first question, you can do:
5x+2=3x+42
2x=40
x=20
For the rest of the questions, please use the same technique if they are vertical because I can't solve all of the questions for you sorry.
If u need anything let me k ow I don’t have enough info to answer that
Answer:
its 24
kasi binabaliktad lang po ang year at value nya