What is the product of (5^-1)(5^-3)

 The product is 5^-4 or 0.0016 (decimal)

Step-by-step explanation:

Hi, to solve this we have to apply the product rule, that says that if we multiply two powers that have the same base, the exponents can be added.

So, mathematically speaking:

(5^-1 )(5 ^-3) = 5 ^-4

Or, the decimal expression by solving:

5^-4= 0.0016

Feel free to ask for more if it´s necessary or if you did not understand something.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

27

step-by-step explanation: