33. ĐỘ CO GIÃN CỦA CẦU Khi một mặt hàng được định giá p đô-la mỗi đơn vị, cầu của người tiêu
dùng là q đơn vị, trong đó và q liên hệ với nhau
bởi phương trình q+ 3pq = 22.
a. Tính độ co giãn của cầu theo giá đối với mặt
hàng này.
b. Với đơn giá là $3, cầu là co giãn, không co giãn
hay co giãn đơn vị?

What is the best definition of a conclusion?

The following accounts appeared in recent financial statements of delta air lines. identify each account as either a balance sheet account or an income statement account. for each balance sheet account, identify it as an asset, a liability, or stockholders' equity. for each income statement account, identify it as a revenue or an expense. item financial statement type of account accounts payable balance sheet advanced payments for equipment balance sheet air traffic liability balance sheet aircraft fuel (expense) income statement aircraft maintenance (expense) income statement aircraft rent (expense) income statement cargo revenue income statement cash balance sheet contract carrier arrangements (expense) income statement flight equipment balance sheet frequent flyer (obligations) balance sheet fuel inventory balance sheet landing fees (expense) income statement parts and supplies inventories balance sheet passenger commissions (expense) income statement passenger revenue income statement prepaid expenses income statement taxes payable balance sheet

Alarge tank is filled to capacity with 500 gallons of pure water. brine containing 2 pounds of salt per gallon is pumped into the tank at a rate of 5 gal/min. the well-mixed solution is pumped out at the same rate. find the number a(t) of pounds of salt in the tank at time t.