INTRODUCTION TO ALGEBRA

ALGEBRA 1

Bell Ringers

Week 3-4

Monday:

Given that the area of a circle is square inches, what is the radius of the circle?

a. 5 inchesb. 10 inchesc. 25 inchesd. 625 inches

25

Area = pi (r2)

Tuesday #1:

Which of the following sentences does not belong with the other three.

a. b.

c. d. 2 2n n 1 1a a

12 12x x 7 7n n

Tuesday #2:

Which expression is equivalent to 4 + 6(ac + 2b) + 2ac?

a. 4 + 8ac + 12b b. 4 + 10ab + 2ac

c. 4 + 12abc + 2ac d. 12ac + 20b

Thursday:

The length of one side of a square is 8m. Which expression describes the perimeter of this figure?

a. b.

c. d.

16m 264m

232m32m 8m

Friday:

If the area of a rectangle has to be greater than 28 square units, which of the following could be the possible dimensions of that rectangle?

a. 2 x 10 b. 3 x 9

c. 4 x 6 d. 8 x 4