39
"Three times ten to the ninth" or "three billion".
Ninth
4.9 x 10 (to the ninth power) That is scientific notation.
Three and eight times a number.
39
how do you write an expression with three terms
"Three times ten to the ninth" or "three billion".
You write 3 x 3 x 3... etc., making sure the number 3 appears 9 times as a factor.
Three hundred and ninety-ninth
5 to the ninth power is 59. 5 to the ninth means 5x5x5x5x5x5x5x5x5. Thats 1 953 125
Ninth
Re-write it with a root. If the power of the expression is less than 1, for example x1/3, the expression could be rewritten as cube root of x.
A fraction is a division expression. 3/4 = three divided by four
a4b2
4.9 x 10 (to the ninth power) That is scientific notation.
Three and eight times a number.