Which of the sets of ordered pairs represents a function?

A = { (3,-5), (4, 6), (-3, 9), (2,7) }

B = { (2,4), (-1, - 7), (5,6), (4,3) }

You need four pieces of string that are 2.25feet long to make a friendship bracelet. you have 20 feet of string. estimate how much string you need to make on bracelet

Kwesi is putting on sunscreen. He uses 3/text{ ml}3 ml3, start text, space, m, l, end text to cover 45 / text{ cm}^245 cm 2 45, start text, space, c, m, end text, squared of his skin.

Prisha rolls a fair number cube multiple times and records the result of each roll. Her results are shown in the table. How does the experimental probability of rolling a 3 compare with the theoretical probability of rolling a 3?

5 * (-2w-4) what is this simplified

Given a set of 2x2 matrices, how can I determine if they span the vector space M22?

Maritza remembers her pin because it is the product of two consecutive prime numbers that is between 1000 and 1500 what is her pin

The triangle and the trapezoid have the same area. Base b (two) is twice the length of base b (one). What are the lengths of the bases of the trapezoid? Triangle: - b=21 cm & h=6cm. Trapezoid:-h=6cm

Which is equivalent to 10 to the 4? 10 * 10 * 10 * 10 4 * 4 * 4 * 4 * 4 * 4 * 4 * 4 * 4 * 4 10 * 4 (10 * 4) * (10 * 4) * (10 * 4) * (10 * 4)

Simplify - 9+5 (y+3) - 2y

The expression (8) x/3 is equivalent to: (8) x - (8) 3 (2) x (2) x/3 2x