The correct answer is:
D) Jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.
Answer: I think it is greater than
Step-by-step explanation:
Because positive - negative = positive
Answer:
56
Step-by-step explanation:
11*4=44
6*2=12
44+12=56
Answer:
- Circumference = 69.14cm
- Area = 380.29cm²
Step-by-step explanation:
Circumference.
Circumference of a circle is calculated by the formula:
= Pie * diameter
= π * diameter
= 22/7 * 22
= 69.14 cm
Area
Area of circle:
= Pie * radius ²
Radius = diameter/2
= 22/2
= 11 cm
Area = 22/7 * 11²
= 22/7 * 121
= 380.29 cm²
Answer:
$17.22 per foot
Step-by-step explanation:
To find the unit rate, divide the amount of money by the amount of feet. This will give you how much money per one foot.
310/18= 17.22222
