Use the distance formula to find the length of segment QR if Q is (2,4) and R is (-3,9) Round to the nearest tenth

Step-by-step explanation:

The distance between two points can be found by using the formula

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

Q (2,4) and R (-3,9)

The distance between them is

We have the final answer as

Hope this helps you

Option (B)

Explanation:

The contour lines are very important to understand the elevation of a particular location and they are the important features in a topographic map. These contour lines are separated from one another by a fixed amount (value).

In the given condition, the contour interval is 50 feet.

There will be 3 contour lines between the mean sea level and an elevation of 175 feet. These 3 contours will be representing the heights 50 feet (first contour), 100 feet (second contour) and 150 feet (third contour) respectively.

Thus, the correct answer is option (B).