The answer is 6.855654...
Replace x^2+y^2 with r^2. Also replace y with r*sin theta.
Then we have r^2 = r*sin theta.
this can be reduced to r = sin theta.
Answer:
i believe the answer is 3.4
explanation:
6.5 + x = 9.9
x = 3.4
Answer:
90 couples or 180 ppl
Step-by-step explanation:
lets take "x" as the couples who remained at the party
we start out with 250:
250
but by the time it is 11pm, 70 people have left the party
since it is a couples party we need to divide by two to account for the couples
=x
250-70=180
180/2=90
so 90 couples or 180 ppl
hope this helps