Answer:
one months bill would be $32+$0.75X=$47 X= minutes use over given time.
X= 20
Step-by-step explanation:
15) factor out cos: cos(x)(sin(x)+1)=0
Now this is true when either cos(x)=0 (x=pi/2 and 3pi/2)
Or when sin(x)=-1 (x=3pi/2)
So it's solutions are pi/2 and 3pi/2
Step-by-step explanation:


The place value pattern is a system of patterns of tens in which every
place value is ten times the value on its right. The place value pattern
system is used to <span>write
numbers that are 10 times as much as or 1/10 of any given number.
The place values in the pattern are: ones, tens (10*ones), hundreds (10*tens), thousands (10*hundreds),...
So, 50 = 5 tens
5000= 5 thousands, 0 hundreds, 0 tens, 0 ones
So, 5000 > 50</span>