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How many four digit numbers can you make using the digits 3579?
Since all digits are different, the answer is 4! (read this as: 4 factorial), which is equal to 1 x 2 x 3 x 4.
What is the product of the first ten digits of pi?
When rounded to ten significant figures, the first ten digits of pi are: 3.141592654 The product of these digits is: 3 x 1 x 4 x 1 x 5 x 9 x 2 x 6 x 5 x 4 = 129600 Notwithstanding the eleventh digit of the number, which rounds the tenth digit 3 up to 4, the first ten digits of pi with 3 as the final number would be: 3 x 1 x 4 x 1 x 5 x 9 x 2 x 6 x 5 x 3 = 97200
How many 3-digit numbers can be formed from digits 123456789?
-123456786
Is 3 x 3 x 3x 3 equal to 4 to the 3rd power?
3 x 3 x 3 x 3 = 81. 4^3= 64. So no, they are not equal.
What fraction will produce this recurring decimal 166166166?
Call this number "x", equal to 0.166166166... 1000x = 166.166166166... x = 0.166166166... Subtract the second equation from the first, you get: 999x = 166 Solving for x: x = 166/999. Note: I multiplied by 1000, because three digits are repeating (and 1000 has 3 digits).
