8th grade Math Spiral Review

A rectangle is graphed on a coordinate grid. Which transformation will result in a rectangle that is NOT congruent to the original rectangle?

• A dilation by a scale factor of 3

• A rotation of 180° counterclockwise

• A translation 90 units to the right

• A reflection across the x-axis

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Which of these numbers are irrational numbers?

Tags

CCSS.8.NS.A.1

Tags

CCSS.8.G.A.3

Which function best represents the relationship between y and x?

• y = 30x

• y = 6x

• y= 5x +30

• y = 6x + 30

Tags

CCSS.8.EE.B.5

The list shows the weight in pounds of 6 puppies at birth.

3, 1.6, 2.8, 2.5, 1.7, 2.8

What is the mean absolute deviation of these numbers?

• 14.4

• 1.9

• 2.4

• 0.5

Tags

CCSS.6.SP.B.5C

What is the x-coordinate of the ordered pair that best represents a solution to both equations?

• 5

• 0

• 7

Tags

CCSS.8.EE.C.8B

The dimensions of a cylinder are shown in the diagram.

Which measurement is closest to the lateral surface area in square centimeters of the cylinder?

• 3508

• 376.99

• 1507

• 753.98

Fulgurites are pieces of glass in the shape of a cylinder produced when lightning strikes sand. A student found a fulgurite with a height of 21 inches and a diameter of 6 inches. Which equation can be used to find V, the volume of the fulgurite in cubic inches?

Tags

CCSS.8.G.C.9

CCSS.HSG.GMD.A.3