In considering the attitudes of consumers toward fairness, which of the following have economists found to be true? a. people attempt to treat others fairly, even if doing so makes them worse off financially. b. people usually ignore fairness when making spending decisions. c. people are interested only in making themselves as well off as possible. d. people attempt to treat others fairly, but only if doing so makes them better off financially.

The correct answer is A: "People attempt to treat others fairly, even if doing so makes them worse off financially."

Explanation:

In general, people like to treat others fairly, maybe because they want to be treated the same way, even if doing so affects them financially. One example could be tipping waiters or not haggling.

x = 7

step-by-step explanation:

equating the expression for area to the given area

2x² - 7x - 4 = 45 ( subtract 45 from both sides )

2x² - 7x - 49 = 0 ← in standard form

to factor consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term

product = 2 × - 49 = - 98 and sum = - 7

the factors are - 14 and + 7

use these factors to split the middle term

2x² - 14x + 7x - 49 = 0 ( factor the first/second and third/fourth terms )

2x(x - 7) + 7(x - 7) = 0 ← factor out (x - 7)

(x - 7)(2x + 7) = 0

equate each factor to zero and solve for x

x - 7 = 0 ⇒ x = 7

2x + 7 = 0 ⇒ 2x = - 7 ⇒ x = -

thus the positive value for x is x = 7