Answer:
A function is said to be an exponential function if equal steps in the independent variable produce equal ratios for the dependent variable.
Step-by-step explanation:
Answer:
D.
Step-by-step explanation:
72-44
Answer:
x=20
m<B=92 degrees
m<C=40 degrees
Step-by-step explanation:
48+6x-28+2x=180
20+8x=180
8x=160
x=20
(6(20)-28)=92
2(20)=40
So, x=20, m<B=92 degrees and m<C=40 degrees
Answer:
1090
Step-by-step explanation:
Imagine a right triangle where a and b are the legs and c is the hypothenuse.
Pitagora: a²+b²=c²
Divide by c
(a/c)²+(b/c)²=1
But a/c=sin(B) and b/c=cos(B)
Thus sin² + cos² = 1