Lessons 4.1-4.6 Review

Powers of 10

100

2.6 x 10^4 into standard form

What is 26,000?

200

9.2 x 10^-2 into standard form

What is 0.092?

300

42,000 into scientific notation 

What is 4.2 x 10^4

400

0.000029 into scientific notation

What is 2.9 x 10^-5?

500

45,937,150 Rounded to the ten thousands place and written in scientific notation

What is 4.594 x 10^7

Rational or Irrational?

100

475.25

What is rational

200

pi

What is irrational

300

sqrt(5)

What is irrational

400

1/8

What is rational

500

1.59595959.....

Rational

Simplifying Square Roots

100

Simplify the radical: 

sqrt(40)

2sqrt(10)

200

Simplify the radical:

sqrt(49/81)

7/9

300

Simplify the radical:-2sqrt(50)

-10sqrt(2)

400

simplify the radical:

sqrt(25k³)

5ksqrt(k)

500

Simplify the radical:

sqrt(108m⁵)

6m²sqrt(3m)

Circles

100

Find the circumference of a circle with radius of 4in

8pi inches

or 50.27in

200

What is the area of a circle with radius 5ft?

25pi ft²

or 78.54ft²

300

What is the circumference of a circle with diameter of 18cm?

18pi cm.

or 56.55 cm.

400

What is radius of a circle with an area of 81pi in²?

9in.

500

What is the diameter of a circle with circumference of 75pi meters? 

75 meters

Addition/Subtraction of Scientific Notation

100

(2 x 10^3) + (5 x 10^4)

What is (5.2 x 10^4)?

200

(8.9 x 10^3) - (4.03 x 10^2)

What is (8.497 x 10^3)?

300

(4.05 x 10^5) - (2.9 x 10^2)

What is (4.047 x 10^5)?

400

(12.9 x 10^2) + (3.234 x 10^4)

What is (4.524 x 10^4)?

500

(9.05 x 10^5) - (7.32 x 10^4)

What is (8.318 x 10^5)?