Three students attempt to define what a circle is. Can you match the teacher's comments to the
definitions?
Definition of a circle
Teacher's comments
Duru's definition: The set
of all points in a plane that
are the same distance away
from some given point,
which we call the center.
You seem to be
confusing a circle with
a sphere.
Oliver's definition: The set
of all points in 3D space that
are the same distance from
a center point.
Stupendous! Well
done.
Carlos's definition: A
perfectly round shape.
Your definition needs
to be much more
precise.

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

Statement reason 1. δabc is similar to δced. given 2. 3. definition of slope 4. slope of slope of definition of slope 5. slope of × slope of multiplying the slopes 6. slope of × slope of substitution property of equality 7. slope of × slope of simplifying the right side the table contains the proof of the relationship between the slopes of two perpendicular lines. what is the reason for statement 2? a. parallel line segments that meet a common perpendicular line are proportional in length. b. the lengths of vertical and horizontal sides in congruent triangles are in a common ratio. c. trigonometric identities determine the lengths of the legs in a right triangle. d. corresponding side lengths in similar triangles are proportional in length.

Which equation could represent the relationship shown in the scatter plot? y=−3x−2 y=−3/4x+10 y=−2/3x+1 y=9x−12 scatter plot with x axis labeled variable x and y axis labeled variable y. points go from upper left to lower right.