Review After Module 6

Arithmetic

100

Which of these numbers divide into 5178?

2, 3, 4, 5, 6, 9, 10

2, 3, 6

200

-4-(-3)(6)

14

300

-4^2

-16

400

3.5-(-2.1)(8.5)

21.35

500

2/3-1/6 div 3/4

4/9

Complex Numbers

100

sqrt(-50)

5isqrt(2)

200

i^56

1

300

(-8+3i)^2

55-48i

400

(5+i)/(4i)

1/4 - 5/4 i

500

(3i)/(2-i)

-3/5 + 6/5 i

Linear Equations

100

8(x+23)-8=8(x+22)

All real numbers (identity)

200

7(x+1)+8x=1-3(x+4)

-1

300

1/3 x + 1/2 = 5(2/3 x - 5)

17/2

400

0.05(x+60)-0.03(x-10)=2.9

-20

500

Solve for h

V=1/3 pi r^2 h

h=(3V)/(pir^2)

Absolute Value

100

-|-6|+|-6|+|6|

6

200

16-3|-6-2(7-2)|

-32

300

|x+1|=3

|x+1|=-3

|x+1|=0

2,-4

DNE

-1

400

|5x+6|=3

-3/5,-9/5

500

-2-|5x+3|=-4

-1, -1/5

Linear Inequalities

100

x+2(x+2)>6x-17

(-oo,7)

200

6/5 x + 1/2 >=3/2 - 7/4 x

[20/59,oo)

300

x<=-3 and x<=3

(-oo,-3]

400

x<=-3 or x>=0

(-oo,-3] U [0,oo)

500

-7<=2x-2<3

[-5/2,5/2)