The estimated population of the world in the middle of 2010 was 6,852,472,823. express this value in scientific notation.

First we round it off to the nearest millions.

6,852,472,823 rounded off - 6,852,000,000

then you move the decimal point to the left until the number becomes between 1 and 10

-- 6.852000000

count the numbers to the right of the decimal point, remove the zeroes, then write it as

6.852 x 10^9 or 6.852e9

9 is how many numbers are in the right of the decimal point, which was 852000000

at home andrea has 1 2/3 kilograms of rice

step-by-step explanation:

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.