The us postal service delivered 7.14 x 10^10 pieces of mail in month of decmember and 3.21 x 10^10 in month of janaury. what is the total mail delivered for these two months

1.08 * 10^11 pieces of mail

Step-by-step explanation:

like actually this is the right answer

The solution is 1.035 x 1011. Since the exponents are the same, we can add the bases. The result is 10.35 x 1010.

Step-by-step explanation:

Because the base must be greater than 1, but less than 10 we have to move the decimal one place to the left. This increases the exponent from 10 to 11.

answer with step-by-step explanation:

a. ∠j is supplementary to ∠k - true:

(opposite angles of a trapezoid are supplementary which means that they add up to 180 degrees)

b. kl is parallel to jm - true:

(opposite sides are parallel to each other in a trapezoid)

c. jk is perpendicular to kl - false:

(clearly, jk does not make a right angle with kl)

d. jk is parallel to lm - false:

(jk and lm are two lines opposite in direction to each other so they cannot be parallel)

e. ∠j is congruent to ∠m - true:

(the angles on each side of the base are congruent)

f. ∠j is congruent to ∠k - false:

(the angles on the same side but opposite side of the base are not congruent)

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^