Multiply and simplify.

(3 + i)(4 + 2i)

use the imaginary number i to rewrite the expression:

(minus b)

Multiply and simplify (3 + i)(4 + 2i)

(3 + i)(4 + 2i) = (3*4) + (3*2i) + (4*i) + (2i*i) = 12 + 6i + 4i + 2i^2

i^2 = -1

12 + 6i + 4i + 2i^2 = 12 + 6i + 4i -2 = 10 + 10i

Use the imaginary number i to rewrite the expression:

-

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

the answer to this is a. a^2 + b^2 = c^2