May be uneven because questions can be worth more or less (including zero) depending on your answer. Which of the relations given by the following sets of ordered pairs is a function?
{(-5, - 4), (- 4, – 3), ( – 3, – 2), (- 4, – 5), (- 2, – 1)}
{(0,3), ( – 6,8), ( – 3,5), (0, – 3), (7, 11)}
{(2, 4), (2,6), (2, 8), (2, 10), (2, 12)}
{(8, 1), ( – 4, 1), (3,5), (0,4), ( – 1, 2)}

Nthe opening scene of the movie raiders of the lost ark, indiana jones replaces a golden statue with a bag of sand. the platform on which the statue is placed is designed to detect the mass of the statue. if the bag of sand has a different mass than the statue, then a mechanism triggers and destruction ensues. the density of gold is about 20\text{ g/cm}^320 g/cm 3 20, space, g, slash, c, m, start superscript, 3, end superscript. the density of sand can be estimated at 2.5\text{ g/cm}^32.5 g/cm 3 2, point, 5, space, g, slash, c, m, start superscript, 3, end superscript. the gold statue can be modeled as a cylinder with height 25\text{ cm}25 cm25, space, c, m and radius 8\text{ cm}8 cm8, space, c, m. in terms of \piπpi, what is the mass of sand indiana jones needs to avoid triggering the mechanism?

Problem number 26 of the rhind papyrus says: find a quantity such that when it is added to of itself the result is a 15. the modern day equation that models this problem is x + x = 15. what is the solution to the equation? x = 10 x = 12 x = 15 x = 30

Given: m zade = 60° and m2cdf = (3x + 15) prove: x = 15