To three decimal places, find the value of the first positive x-intercept for the function f(x) = 2cos(x + 4) 1.712 0.712 –2.429 –2.712

The correct option is B.

Step-by-step explanation:

The given function is

We need to find the first positive x-intercept for the function f(x).

Equate f(x)=0, to find the x-intercepts.

Divide both sides by 2.

Subtract 4 from both sides.

For n=-1,

For n=0,

For n=1,

The first positive x-intercept for the function f(x) is 0.712. Therefore the correct option is B.

part 1 answer = 8

part 2 answer = 72

step-by-step explanation:

part 1 explanation = add all of the numbers, then divide by how many numbers you have. so, 200/25 = 8.

part 2 explanation = not gonna lie, this is hard to explain, so just google how to do it.