Spring Semester Exam Review #44-52

A new movie premiered on Friday, September 2nd. 1,350 people attended. Attendance then decreased by 20% each day. Which of the following is the correct exponential decay function to model this situation, and what is the attendance on September 7th?

• A(t) = 1350(0.2)^t; Attendance on September 7th is 135

Tags

CCSS.HSF.LE.A.2

• Both roots are greater than zero.

• The sum of the roots is 15.

• One root is zero, and the other root is greater than zero.

• One root is less than zero, and the other root is greater than zero.

Tags

CCSS.HSA-REI.B.4B

Which list shows the functions correctly listed in order from widest to narrowest graphs?

Tags

CCSS.HSA.APR.A.1

What is the perimeter of the rectangle in terms of x?

• Perimeter = 2(length + width) = 2[(2x) + (x-1)] = 2(3x-1) = 6x-2

• Perimeter = 2(length + width) = 2[(2x) + (x-1)] = 2(3x-1) = 3x-2

• Perimeter = 2(length + width) = 2[(2x) + (x-1)] = 2(3x-1) = 4x-1

• Perimeter = 2(length + width) = 2[(2x) + (x-1)] = 2(3x-1) = 5x-2

Tags

CCSS.7.EE.A.1

If the perimeter is 34 units, what is the value of x?

• 6

• 8

• 10

• 12

Tags

CCSS.3.MD.D.8

• A shift 1 unit left and 3 units down

• A shift 1 unit right and 3 units up

• A shift 1 unit left and 3 units up

• A shift 1 unit right and 3 units down