Answer:
Circle requires ≈ 20 m of edging
Step-by-step explanation:
A = πR²
R = √(A/π)
C = 2πR = 2π√(A/π)
C = 2π√(30/π) = 19.41625... ≈ 20 m
square needs ≈ 22 m of edging
equilateral triangle needs ≈ 25 m of edging
Answer:
A = 60.07°
Step-by-step explanation:
Sin A = 
Sin A = 
Sin A = 0.867
A = Sin⁻¹ 0.867
A = 60.07°
Answer:
Terrance is incorect.
Correct output coordinates (-y,-x)
Step-by-step explanation:
Let
be the input coordinates.
First translation is a rotation of 180° clockwise about the origin. This translation has a rule

Second translation is a reflection over the line y = x. The general rule for the reflection across the line y=x has the rule

When a sequence of two translations are applied to the initial input coordinates, then

As you can see Terrance made a mistake and these two transformations do not cancel themselves out.
Answer:
12
Step-by-step explanation:
60÷100=0.6 0.6x20=12
Therefore the sports shop has 12 part-time employees