Exploring Rational Expressions in Grade 8 Math

Which has a larger volume, a cone or a cylinder with the same base and height?

• Both have the same volume

• Cylinder

• Cone

• Cannot be determined

How many cones does it take to equal the volume of one cylinder?

• 3 cones

• 2 cones

• 4 cones

• 5 cones

What is the volume of a cone if the volume of a cylinder is 90 cm³?

• 90 cm³

• 45 cm³

• 30 cm³

• 60 cm³

If a cone's volume is 120 cm³, what is the cylinder's volume?

• 240 cm³

• 120 cm³

• 360 cm³

• 40 cm³

What formula represents the volume of a cone?

• πr²h

• 1/3 πr²h

• 2πrh

• πr³

How many cubic centimeters of popcorn can a cone-shaped cup with a radius of 5 cm and a height of 9 cm hold?

• 450 cm³

• 150 cm³

• 235.5 cm³

• 314 cm³

What is the slope of the graph representing the cost of shirts from 0 to 10 shirts?

• $11 per shirt

• $9 per shirt

• Varies with quantity

• $10 per shirt

If you buy an extra shirt making the total 11, how much money do you save?

• No savings

• $1

• $10

• $11

What is the volume of a cylinder with a diameter of 6 cm and a volume of 36π cm³?

• Height of 8 cm

• Height of 4 cm

• Height of 10 cm

• Height of 6 cm

In the story about Johnny, why did he return to school?

• Forgot his math book

• Wanted to play basketball

• Left his backpack

• To meet a friend