Math 3 look at the picture

answer

2.9 radians

step-by-step explanation

find the circumference = 2r pi

r = 2

c = 2 * 2 * pi = 4 pi

find the ratio of arc length to circumference

arc / c = 5.8/4 pi

this is equal to the ratio of radian measure / 2pi (since there are 2pi radian in a full circle)

5.8/4 pi = radian measure / 2pi

radian meaure = 5.8 * 2 / 4 = 2.9 radians

part d

step-by-step explanation:

theresa talked her parents into getting sd cards for her phone and her brother’s phone. inserting an sd card into a phone gives it more storage. they both get 8-gigabyte sd cards. how many bits of storage come with each sd card? type your answer in both scientific and standard notation.

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0