First, ABCD is a square < D = 90 (given)
In square ABCD AD and DC are adjacent sides, and AC is diagonal of square
then..
AC^2 = AD^2 + DC^2

since ABCD is a square, AD= DC (all sides of square are equal)

---> (18.79)^2 =17^2 + 17^2
---> 353.06 = 289+289
---> 353.06a 578

so it contradicts that the diagonal of the square is equal to the root of the square with two sides.

What are “like terms”? why can we only add like terms?

(least common multiples) the answer that i had in the 1st step was lcm of airline tickets sold=72. idk if that even matters but just in case. ! three co-workers are busy selling airline tickets over the phone. in an 8-hour day, charles can sell 8 airline tickets, ann can sell 9 airline tickets, and michelle can sell 6 airline tickets. step 2 of 2: what is the smallest number of 8-hour days needed for each of them to achieve the same number of sales? it takes charles . it takes . it takes .

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out