Answer:
Step-by-step explanation:
A signed number means that the number uses a plus or minus sign in front of it.
A
Her account will get 200 dollars larger so you will use + 200
B
The temperature is 12 degrees below zero (cold!!!) so you will write - 12
Answer: 0.49 mi
Step-by-step explanation:
First find the half circumference of the circular pond as this will show the total distance your friend has to walk:
= (π * diameter) / 2
= (22/7 * 0.85) / 2
= 1.34 mi
Your friend is going to walk 1.34 and you will walk 0.85.
Difference is:
= 1.34 - 0.85
= 0.49 mi
Answer:
Step-by-step explanation:
Approximately 95% of the population has IQ scores between 70 and 130. Approximately 99.7% of the population has IQ scores between 55 and 145. Only approximately 0.3% of the population has IQ scores outside of this interval (less than 55 or higher than 145).
I agree with the answer above me but i don’t rly know history so good luck