Answer: This study uses a control group, this study uses repeated measures design, and this study uses random sampling
Step-by-step explanation:
First you need to find the volume of the cylinder. Then find the volume of all 4 rubber balls (spheres). Subtract the cylinder's volume by the spheres' volumes.
Volume of cylinder: πr²h
π2.5²(20) = 392.7 cm³
Volume of sphere: 4/3πr³
4/3π2.5³ = 65.45 cm³
392.7 - 65.45 = 327.25
The amount of space in the container unoccupied by the rubber balls is 327 cm³.
Answer:
Not real.
Step-by-step explanation:
The root is not a real number . A negative has no real root.
The coordinates of point R are (-8, 7)
Answer:
Step-by-step explanation:
Replace x with -5
2(-5)+7
-10+7
-3