1. Find the radius of Circle A. r- 1
2. Find the diameter of the Circle A. d-
3. Find the circumference of the circle. C-
4. Find the area of the Circle. A =-
5. Shade in a sector of 90° on the circle. Find that sector area. Area of Sector =
6. Determine the arc length of circle from the shaded region above. Arc Length =
7. Write the equation for the circle.

a) what number, when added to negative four, is equal to negative five?

step-by-step explanation:

yes yes yes yes yes yes yes yes yes

answer: 0,6

step-by-step explanation:

this would make it the y intercept.

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c