A car door lock has a five-button keypad. Each button has two numerals. The entry code 21914 uses the same button sequence as the code 11023. How many different five-button patterns are possible? You can use a
button more than once.

In july, the average temperature in one us city was 29°c. by december, the average temperature had fallen by 29°c. explain why the average temperature in december was 0°c.

Andy wants to find the distance d across a river. he located points as shown in the figure, then use similar triangles to find that d = 223.5 feet. how can you tell without calculating that he must be wrong? tell what you think he did wrong and correct his error. round your answer to the nearest tenth if necessary. andy must have used the wrong . the distance d is actually feet.

What is the frequency of the sinusoidal graph?