Question

2. 2 divided by a is 1 , If a=_______


a,-1
b,1
c,2
d,-2

3. The reciprocal of 3 ½ is _________


a, 7/2
b,2 1/3
c, 2/3
d, none

4. Which of the following number is in the standard form?


a,25/30
b,-3/81
c, 11/21
d, 10/100

5. The value of 1.1 x 110 is ________


a, 121
b,12.1
c,1.21
d, none


6. If 8

4 = 2x

, then x is equal to ___________


a, 4
b,2
c,12
d, none

7. The value of the expression a2+b2 when a=1 , b=-1 is_________


a,2
b, 0
c, 1
d, none

8. The coefficient of x2

is in -59x2


a, -5
b, -59
c, 59
d, none


9. The simplest form of the ratio 26:91 is __________


a, 2:9
b, 2:7
c, 6:9
d, none

10. There are 9 red balls in a box containing 20 balls. The percentage of red ball

is_____________

a, 50%
b, 45%
c, 40%
d, none​

Answer 1

Answer:

2.)2÷a=1

2×1/a=1

1/a=1/2

a=2

3)3½=7/2

reciprocal=2/7