The slope of a line that is perpendicular to a line whose slope is -2/7 is

-2/7
-7/2
7/2

7/2

Step-by-step explanation:

Since we know that the property of perpendicular lines says that the product of slopes of two perpendicular line is -1 .

Let m be the slope of line which is perpendicular to the line with slope

Therefore by the property of perpendicular lines we have

Hence , the The slope of a line that is perpendicular to a line whose slope is -2/7 is 7/2.

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2