Theo has a wooden board this is 780 millimeters long. how long is the board, in centimeters? round youre answer to the nearest tenth

78cm

Step-by-step explanation:

780mm = 780/1000 (m)

therefore 780mm = 0.78 m

but 100cm = 1m

implying that

0.78m = 78cm

it should be 78 centimeters

Step-by-step explanation:

1 mm=0.1 cm

780 times 0.1= 78 cm

if you want to round to the nearest tenth then it will be 78 because 78.00 rounded to the tenth is 78.0 because we know that is the number after the place that we need to round is 5 or higher then you round up and if it is below 5 it stays that same.

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

greater than one

step-by-step explanation: