The function f(x) = −400x2 + 1,400x + 5,000 models the predicted units sold of a cellphone model after x months of sales. Use the table showing actual and predicted sales to find the residuals for the model. Drag the numbers to complete the tab

U

Step-by-step explanation:

40009

Step-by-step explanation:

40009

option: d is correct

step-by-step explanation:

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)