The latitude of a point is a measure of its position north or south on the Earth’s surface. Latitudes North (N) are measured from 0° N at the equator to 90° N at the North Pole. Latitudes South (S) are measured from 0° S at the equator to 90° S at the South Pole.
The figure shows the latitudes of Washington, D. C. and Lima, Peru. The radius of the Earth is approximately 6,370 kilometers.
1. Find the angle at the Earth’s center between radii drawn to Washington and Lima.
2. Find the distance between Washington and Lima. Show your work.
3. A point’s longitude is a measure of its position east or west on the Earth’s surface. In order for your calculation of the distance between Washington and Lima to be accurate, what must be true about the longitudes of the two cities?

step-by-step explanation:

let's cover over the formula of the vertex:

y = a(x – h)^2 + k

in this formula, (h,k) are the vertex, always remember that the positive or negative value of the vertex is based on the sign it has.

for example, if the vertex is -3,-6 then both the x and y value would have the positive sign attached to it and if it were a positive x and y value, then a negative sign would be attached to it.

with that being said, for our problem the x value is a positive one so we are looking for a number with a negative sign next to it, in this case the first and second choice.

however, for the first answer choice it isn't quite part of the formula so we know that the answer choice correctly displays the x value.

to confirm, we can see if the -1 fits correctly with the second answer choice, and as mentioned above a negative number will have a positive sign attached to it. so, for our problem we can see that -1 has been changed to +1, so we can confirm that the second answer choice is correct.

hence, our final answer is y=(x - 1)^2 + 1

answer: 4 meters

step-by-step explanation: to you understand 2/3 better you can do 1 divided by 3 = . then multiply that by the 2 which is .66666666666666667 then you would do 6 x .66666666666666667 which is 4.      

hope this .