Which expression has the same value as the one below? 8+ [4+(-9)]

12+(-9)

-129

-4+(-9)

4+(-9)

Given :

Some expression :

8+ [4+(-9)]  ,  12+(-9)  , -129  , -4+(-9)   ,4+(-9) .

To Find :

Which expression have same value .

Solution :

Simplifying every term :

a )

8 + [ 4 + ( -9) ]

= 8+(4-9) = 8 -5 = 3 .

b )

12+(-9)

= 12 - 9 = 3

c )

-129

d )

-4 + ( -9 )

= -13

e )

4+(-9)

= -5

Therefore , the expression 8+ [4+(-9)] and 12+(-9) have same value .

Hence , this is the required solution .

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.

15% chance.

step-by-step explanation:

3/10 times, the 5 year old will get a tablet. 5/10 times, the 13 yer old will get a tablet. multiply both fractions to get 15/100 times, both would have a tablet.