Answer:
C .r=√A/π
Step-by-step explanation:
A=πr²
r²=A/π
Taking sq roots on both sides
r=√A/π
Answer: its <
Step-by-step explanation:
Answer:
π4;3π4
Step-by-step explanation: Trig table gives:
sinx=√22 --> arc x=π4
Unit circle gives another arc x that has the same sin value:
x=π−π4=3π4
Answer:
D
Step-by-step explanation:
An inequality is an expression which means more than one number is a solution. We graph the solutions on a number line to show all possible values. We graph using circles and arrows.
- Equal to and less/greater than are graphed with filled in circles on the value.
- Only less/greater than (not equal to) are graphed with open (not filled in) circles on the value.
- We draw an arrow the direction the solutions satisfy the inequality. Generally this is the direction the inequality itself points.
This is a filled in circle on -2 so this is . This means only answers C and D are options.
Answer D points to the right.