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Practice set on surds and indices - general questions

Score:  012
1. 

(17)3.5 x (17)? = 178

2. 

Given that 100.48 = x, 100.70 = y and xz = y2, then the value of z is close to:

3. 

If 5a = 3125, then the value of 5(a - 3) is:

4. 

If 3(x - y) = 27 and 3(x + y) = 243, then x is equal to:

5. 

(256)0.16 x (256)0.09 = ?

6. 

The value of [(10)150 ° (10)146]

7. 

1 +1+1= ?
1 + x(b - a) + x(c - a)1 + x(a - b) + x(c - b)1 + x(b - c) + x(a - c)

8. 

(25)7.5 x (5)2.5 ÷ (125)1.5 = 5?

9. 

(0.04)-1.5 = ?

10. 

(243)n/5 x 32n + 1= ?

9n x 3n - 1