Center of Earth
7. A scientist studies two islands shown at the right. The distance
from the center of the Earth to the equator is about 3960 mi.
a. What is the measure in radians of the central angle that intercepts tl
arc along the equator between the islands? (5pnts)
equator
b. About how far apart are the two islands? (5pnts)

its a, i had the same answer, its from study island right

step-by-step explanation:

(x) - (y) = (1 + 4i)

1. when "a" is a root of a polynomial, (x -a) is a factor of it. for the three roots given, the factors of the desired polynomial are (x +2)(x -1/2)(x -3).

in order to make the leading coefficient be negative, we need to multiply this product by a negative number. any negative number will do, but we choose a small (magnitude) value that will eliminate the fraction: -2.

then

f(x) = -2(x +2)(x -1/2)(x -3) = -(x +2)(2x -1)(x -3)

= -(2x² +3x -2)(x -3)

= -(2x³ -3x² -11x +6)

f(x) = -2x³ +3x² +11x -6

2. a graph created by the desmos on-line graphing calculator is shown, and the zeros are highlighted.

3. as indicated in part 1, the multiplier of this equation can be anything and the zeros will remain the same. you want a negative leading coefficient, so the "anything" is restricted to any of the infinite number of numbers that will make that be the case.