Agroup of friends is going out for pizza, and they decide that each person gets to choose one topping for the pizza. there are 44 friends, and there are 99 toppings to choose from. how many ways can the 44 friends make a pizza from 99 toppings, if they each choose a different topping? there are __[blank]__ ways the 44 friends can make a pizza from 99 toppings.

  126

Step-by-step explanation:

The number of ways 4 items can be chosen from 9 is ...

  9C4 = 9!/(4!(9-4)!) = 9·8·7·6/(4·3·2·1) = 9·7·2 = 126

There are 126 ways the 4 friends can make a pizza from 9 toppings.

If you really mean to have a pizza with 44 toppings from a list of 99, there are about 2.765×10^28 ways to do that.

Checking and appropriate editing of your question is usually a good idea.

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.

0.038

step-by-step explanation: