Mia and Isak make designs using dominoes. Mia uses 6,479 dominoes in her design. Isak uses 5,928 dominoes in his design. Mia and Isak calculate the number of dominoes they use in all as shown below, but Mia makes a mistake in her addition. Describe Mia’s mistake. How many dominoes do they use in all?​

i do not know the answer

step-by-step explanation:

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.