MATH

Arithmetic seq

100

3,7,11,15

4

200

5,8,11,14

a=5  d=3

300

find the common of sequence if the 1sr term is 2 and the 15th term is 44

a_15=a+(15-1)d

400

which term is equal to 100? 7,10,13,16

a_{n=7_(n-1)3}

500

find the sum of all even numbers between 2 and 100

2,4,6...,100

linear equations

100

2x+5=15

2x=10 x=5

200

3x-7=11

3x=18 x=6

300

5x+2=3x+10

5x+3x=10-2 2x=8 x=4

400

4(x-2)=12

4x-8=12 4x=20 x=5

500

x/3+4=10

x/3=6 x=18

EXPONENT

100

3⁴

81

200

2⁵

32

300

7²

49

400

10³

1000

500

5³

125

MEAN AND MEDIAN

100

4,8,6,10,2

6

200

7,3,9,1,5

5

300

12,15,9,6

10.5

400

5,7,7,9,12

8

500

20,18,22,24,26,28

23

square roots

100

√36

6

200

√81

9

300

√49

7

400

√64

8

500

√100

10