Answer: 5,000,000+600,000+70,000+8,000+200+9
Step-by-step explanation:
Answer:
x=1
Step-by-step explanation:
check the attatched photo please
Answer:
<em>The </em><em>answer</em><em> </em><em>is </em><em>3</em><em>4</em><em> </em>
Step-by-step explanation:
........
Answer:
John needs 217 tiles.
Rate of change is 1.9 tiles per square foot
Step-by-step explanation:
Hallway area=3•38=114 ft²
Rate of change=190/100=1.9 tiles/ft²
Tile total=
T=area•rate
=114•1.9
T=216.6
(Round up because tiles are sold as whole units)
Total tiles=217
[sin(180-a) x cos(90-a) - 1]/cos(-a)
= [sin(a) x sin(a) - 1]/(-cos(a))
= [sin^2(a) -1]/(-cos(a))
= [-cos^2(a)]/(-cos(a))
= cos(a)
formula used
sin(180-a) = sin(a)
cos(90-a) = sin(a)
cos(-a) = -cos(a)
sin^2(a) + cos^2(a) = 1
all of these are easily proved by the unit circle. you might find someone to explain this. it will be very handy.
