<span>we are given the function r=2cos(3θ)
from the pythagorean theorem,</span>
<span><span>r2</span>=<span>x2</span>+<span>y2
from the polar definition,</span></span>
<span>x=rcos3θ</span>
<span><span>x/r = </span>cos3θ</span>
<span>y=rsin3θ</span>
<span>r=2<span>x/r</span></span>
<span><span>r2</span>=2x</span>
<span><span><span>x2</span>+<span>y2</span>−2x=0.
This equation represents a parabola</span></span>
Answer:
emissions = 40·0.65^t
Step-by-step explanation:
The decay factor in an exponential equation is 1+(decay rate), so the equation can be written ...
amount = (initial amount)×(decay factor)^t
where the decay factor applies to 1 unit of time t. Filling in the given values, we find ...
decay factor = 1 +(-35%) = 0.65 . . . . for 1 year
emissions = 40×0.65^t . . . . . million tons, for t in years
Answer:
C. d = C/pi
Step-by-step explanation:
lol nothing really to explain but it's saying diameter equals circumference divided by pi
Hope this helps dude !
Answer:
10 committees
Step-by-step explanation:
Let's say there names are Bob, Doris, Brenda, Alex, and Emma.
Bob and Doris
Bob and Brenda
Bob and Alex
Bob and Emma
Doris and Brenda
Doris and Alex
Doris and Emma
Brenda and Alex
Brenda and Emma
Alex and Emma
these are all different groups starting with only 5 people leading to 10 possible variations of the committee members
Hope that helps! :)