Parfaite,Aiyana,Alanah

scientific notation

100

Write 230,000,000,000 in scientific notation.

2.3 × 10^11

200

(2.3x10^-3)(3x10^8)

6.9x10^5

300

(2.2x10^7)(5x10^8)/(2.5x10^3)(8.8x10^5)

5.0x10^6

400

3.1x10^-4 x 8.5x10^-2

2.635x10^-5

500

4.7x(6.02x10^23)

2.83x10^24

Evaluate

100

30 - 12÷3×2 =

22

200

 |4 - 8(3 - 12)| - |5 - 11| =

70

300

-18 + 4(6 ÷ 2)2=

18

400

8^-2/3^-3

27/64

Systems Of Equations

100

x + 2y = 10
3x + 4y = 8

(-12,11)

200

x + 3y = 7
x - 3y = 1

x = 4, y = 1

300

8x + 7y = -16
10x + 7y = -6

(5, -8)

400

y - x = -2 and 2x + y = 7

(3,1)

500

0.4x - 0.1y = 2
0.2x + 0.5y= 1

(5, 0)