How many miles between a point 30 ° south latitude and 60 ° west longitude and a point 30 ° south latitude and 80 ° east longitude?

Answer:

8,394 miles

Explanation:

Longitudes, also known as 'meridians', are the lines that go from north to south. They are measured from the Prime Meridian in a east-west direction.

Latitudes, also known as parallels, are the lines that go from east to west. They are measured from the equator in a north-south direction.

Assuming the radius of earth is 3.950 miles.

8,394 miles is calculated as (60 + 80) = 140° * 59.956 = 8,394. Thus, answer will be 8,394 miles.

Final answer:

To estimate the distance between two points at 30° south latitude and longitudes 60° west and 80° east, we note the significant difference in longitude but lack specific mathematical formulas here for precise calculation. The approximation would involve considering the convergence of longitudinal lines towards the poles, affecting the distance covered by one degree of longitude.

Explanation:

The question relates to calculating the distance between two points that share the same latitude but differ in longitude. Given the points are at 30° south latitude and their longitudes are 60° west and 80° east, we need to understand how longitudinal distances are measured. Since one degree of longitude equals 69 miles at the equator and decreases towards the poles, we calculate at 30° south, which is mid-latitude, where it's less. However, a precise calculation needs a more detailed approach, such as using the Haversine formula or spherical trigonometry, which isn't outlined here. Instead, to calculate distance simply, we acknowledge that the total longitude difference is 140° (considering 60°W to 0° and 0° to 80°E). This suggests a substantial span which at mid-latitude, would not be accurately represented by just multiplying 140 by a standard mile per degree of longitude due to the convergence of meridians towards the poles. Thus, without a specific formula, we estimate acknowledging that precise distance may differ.

What do we call land that is hard to grow crops on?

Which statement describes absolute and apparent brightness?
O Absolute brightness and apparent brightness are identical ways to describe the brightness of a star.
O Absolute brightness and apparent brightness change with the distance from the star to the observer.
O Absolute brightness depends on the distance from the star to the observer, whereas apparent brightness is
always the same.
O
Absolute brightness is the actual amount of light produced by the star, whereas apparent brightness changes
with distance from the observer.​

7x - 1 + 6x - 1 = 180