Answer:

Step-by-step explanation:
-For a known standard deviation, the sample size for a desired margin of error is calculated using the formula:

Where:
is the standard deviation
is the desired margin of error.
We substitute our given values to calculate the sample size:

Hence, the smallest desired sample size is 23
Answer:
8.7
Step-by-step explanation:
Since a square has equal side lengths, the formula for area is s^2, where s stands for side. Since we are given the area, s^2=75 square feet. Take the square root of both sides to get s is equivalent to the square root of 75 square feet. When this becomes a decimal, it is 8.66 feet. Since we are supposed to round to the nearest tenths, it rounds up to 8.7 feet per side length
Unit price:
$3.03 for a gallon of gass
$0.05 per ounce of soap
$0.75 per bag of popcorn
Not a Unit Price:
$20 for 5 books
$33.00 for 2 avocadoes
hoped that helped
Answer:
The exact distance between the two points is 10
Step-by-step explanation: