Evaluate the expression. Write the answer in standard form.

Question

Evaluate the expression. Write the answer in standard form.

 

(-3•10^-4)(3•10²)

Answer 1

This is in scientific notation.  So multiply the whole numbers in front first, then calculate the power of 10 by adding the exponents.

 

-3x3 = -9

10^-4+2 = 10^-2 

 

The answer would be -9•10^-2 = -0.09 in standard form.