math prep 1

[جمال سراج]

complete
1) If | x | = 9 then x = .............. or ................
2) (2 x – 5) (7 x + 5) = .................
3) Find the quotient of 27 x3 + 36 x2 + 3x) ÷ 3x
4) Find the product of : (2 x2 + 3 x + 4) – (3 x2 – 7 x – 5)
5) Find the sum of 3 y + x + 3) + ( x + 6)
6) the mean of the values 5 , 8 , 7 , and 3 is ………..
7) find the median of : 7 , 5 , 15 , and 7
2) a) use the distribution property to simplify:
1) 25 × 39 + 25 × 61
2) 34 × 59 + 34
Complete :
a) the multiplicative inverse of 2/3 is …………

The following table shows the ages of four persons (in years) now:

Names

Doha

Khaled

Shaza

Ali

Ages

30

20

25

15

Represent these data by a broken line graph?