Okay, Do you know how to find the surface area?
Answer:
only the first three are equivalent to the expression
Answer:
the last one
Step-by-step explanation:
Two lines will be parallel when their slopes are equal, and two lines will be perpendicular when their slopes are negative reciprocals of each other. Our slopes for these two equations are the coefficient for the x value. Both slopes are equal so these lines are parallel.
Answer:
9
Step-by-step explanation:
Since we know the number of contestants in Round 2, we could go step by step and calculate the number of remaining contestants in Round 3, then Round 4 and finally Round 5.
However, we can do it without calculating. So in Round 3, there will be:
R3 = R2^((n-1)/n), where n is number of the round
R3 = R2^(2/3)
For Round 4, the number will be:
R4 = (R2^(2/3))^(3/4)
And Round 5 will be:
R5 = ((R2^(2/3))^(3/4))^(4/5)
Threes and fives in exponents will cancel out and we'll remain only with:
R5 = R2^(2/5)
R5 = 249^(2/5)
R5 = 9.08
Rounded to the nearest integer, the number of contestants in Round 5 is 9.
