Which functions have at least one real root? Check all that apply
f(x) = -x2 + 10x – 14
f(x) = 2x2 – 12x + 18
f(x) = x2 – 3x + 25
f(x) = -x2 + 4
f(x) = -3x2 + x - 2
f (x) = 10x2 – 4x

Country carpets charges $22 per square yard for carpeting, and an additional installation fee of $100. city carpets charges $25 per square yard for the same carpeting, and an additional installation fee of $70

The liabilities of cullumber are $99,000. owner’s capital is $143,000; drawings are $96,000; revenues, $467,000; and expenses, $301,000. what is the amount of cullumber company’s total assists?

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.