Which of the following relations shows a function?

A.{ (5, - 7), (6, - 7), (-8, - 1), (0, - 1) }

B.{ (4, - 1), (4, - 2), (3, - 1), (2, 4) }

C.{ (4, 5), (3, - 2), (-2, 5), (4, 7) }

D.{ (1, 4), (4, 1), (1, - 4), (-4, 1) }

Steve use 8/9 gallons of paint 4 identical birdhouse. how many gallons does he use for each bird house

In ΔWXY, the measure of ∠Y=90°, XW = 85, WY = 84, and YX = 13. What is the value of the cosine of ∠W to the nearest hundredth?

Angelo family drove 254.6 miles their car used 19 gallons of gasoline describe the cars gas mileage

Arnold had three pieces of different colored strings that are all the same length. Arnold cut the blue string into 2 equal size lengths. he cut the red string into 3 equal-size length, and the green string into 6 equal-size.

A pulley of radius 10 cm turns at 6 revolutions per second. What is the linear velocity of the belt driving the pulley in meters per second? possible answers: A. 376.99 m/s B. 1.67 m/s C. 166.67 m/s D. 3.77 m/s

Roger spent 1 hour and 15 minutes playing video games. If he stopped to eat dinner at 2:35, what time did he originally start playing?

When a number is increased by 12, the results is equal to twice the number equation

A rectangular field is 70 feet long and 30 feet wide. if fencing cost $7 per yard, how much will it cost to enclose the field

5x + y = 6 5x + 3y = - 4 The y-coordinate of the solution to the system shown is ___.

In a kitchen there are four containers that can hold different quantities of water, as shown in the figure below: Four containers of the same shape but different sizes are shown, arranged from the shortest to the longest.