Gr 8 Unit 3 Review

8.14a What is the value of the expression below when A=16, B=1/4, and C=-8

(AB-C^2)/(A-BC)

• -3.33333...

• 3.7777777...

• 3.3333333

• -3.777777...

Tags

CCSS.6.EE.A.2C

8.14a What is the value of the expression when x = -2

• -16

• 26

• 20

• 14

Tags

CCSS.6.EE.A.2C

8.14a A student has started to solve the problem below. What should the student's next step be?

• Subtract 2 from 3

• Add -2 to 3

• Multiply -2 and -3

• Multiply 2 and 3

Tags

CCSS.6.EE.A.2C

8.14a Evaluate the expression. x = -2 and y = 4

• Error or Undefined

• 27.59

• 13.02

• 83.14

8.9a Which equation is verified by this graphic?

• 3^2+4^2 = 5^2

• 3 + 4 = 5

• 3^2 + 5^2 = 4^2

• The square root of 3 + the square root of 4 = the square root of 5

Tags

CCSS.8.G.B.8

8.9a What must the value of the third square be?

• 13

• 169

• 12

• 196

Tags

CCSS.8.G.B.8

Which equation is supported by the image?

• 3^2 + 5^2 = 4^2

• 16^2 + 9^2 = 25^2

• 3^2 + 4^2 = 5^2

• 9^2 + 25^2 = 16^2

Tags

CCSS.8.G.B.8

8.9b Would the following lengths form a right triangle? 15in, 20in and 24in

• Yes because 15^2 + 24^2 = 20^2

• Yes because 15^2 + 20^2 = 24^2

• No because 15^2 + 24^2 does not equal 20^2

• No because 15^2 + 20^2 does not equal 24^2

Tags

CCSS.8.G.B.8

8.9b Is a triangle with sides 2, 3 and 4 a right triangle?

• Yes, these make a right triangle.

• No, these do not make a right triangle.

Tags

CCSS.8.G.B.8

8.9b Is a triangle with sides 9, 12 and 15 a right triangle?

• Yes, these make a right triangle.

• No, these do not make a right triangle.

Tags

CCSS.8.G.B.8