Answer:
a triangle that is rotated about a given point.
Step-by-step explanation:
Answer:
130°
Step-by-step explanation:
90° ± 90° = 180°
180° - 50° = 130°
130°
Answer:
12.56 square cm
Step-by-step explanation:
Let A be the area of the sector of circle.

Answer:
Growth when: b>1.
Decay when: 0<b<1.
Step-by-step explanation:
Any function in the form
, where a > 0, b > 0 and b not equal to 1 is called an exponential function with base b.
if 0 < b < 1. It is an example of an exponential decay.
The general shape of an exponential with b > 1 is an example of exponential growth.
Hence,
An exponential function is expressed in the form
The relation represents a growth when b >1 and a decay when 0<b<1.