Answer:
lines are perpendicular
Step-by-step explanation:
The equation of a vertical line parallel to the y- axis is
x = c
Where c is the value of the x- coordinates the line passes through
x = - 1 ← is the equation of a vertical line
The equation of a horizontal line parallel to the x- axis is
y = c
Where c is the value of the y- coordinates the line passes through
y = - 1 ← is a horizontal line
Since lines are vertical and horizontal they are perpendicular to each other.
Answer:
-10+12=2;+2
Step-by-step explanation:
Answer:
Step-by-step explanation:
The mean (or average) of a set of numbers can be found with the following formula:

For this problem, we have five numbers, so we add them together and divide by 5:



Answer:
105.12 ft²
Step-by-step explanation:
Let's first find the area of the rectangle.
ft², so the rectangle has an area of 80ft².
To find the area of the semi-circle, we find the area of a whole circle and divide by two.
The formula to find the area of a circle is
. The radius is 4, as the diameter is 8.



Add 80 and 25.12:

Hope this helped!
Answer:
B) -15
Step-by-step explanation: