Combine and simplify these radicals. radical 8 * radical 20

The answer to your question is √160 or 4√10

Step-by-step explanation:

Data

                 √8 √20      

Combine the radicals

 As both radicals are square roots, just use one radical and place the numbers inside. Multiply 8 and 20

                  √ 8 x 20

Simplify

                    √160

Find the prime factors of 160

                        160  2

                          80  2

                          40  2

                           20 2

                           10  2

                            5  5

                             1

            160 = 2⁵ 5

Then   √160 = √2⁵5

                     = √ 2⁴2 5

                     = 2²√ 2 5

                    = 4√10              

$3,200 x 7.25% = $3,200 x .0725 = $232 interest monthly

$232 monthly x 12 annual = $2, 784

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i dont understand

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