Series = 22 + 5(n-1) can be re written as 17 + 5n
on day 28 value = 17+ 5 (28) =157 people
sum = n/2 ( a1 + a28)
28 / 2 ( 22 + 157)
= 2506 people
Put it into standard form by completing the square for x and y
(x+3)^2 + (y -7)^2 = - c + 9 + 49 Right side needs to equal 4^2 (radius squared)
58 - c = 16
c = 42
x^2 - 4x + y^2 - 6y = 25 + 36
(x-2)^2 +( y-3)^2 = 25 + 36 + 4 + 9 The right side = radius ^2
= 74 radius = sqrt 74 = 2 sqrt 19
This would result in a x4 multiplied by a 2x8 for the highest degree 2 x4+8 = 2 x12 for degree 12
-8 * 8 * 7
1) Largest possible degree would be 6 .....it could be LESS
2) if b = -1/2 the x6 terms would be gone and the x2 terms would be gone too..... degree zero
Not enough info in the question to answer.....
13 / 52 is correct..... then there are 51 cards left of which 18 are black number cards ace is not a number ( not 20)
...Oh yah.... Welcome , DS !
time at 50 mph = d / 50
time at 60 mph = d/60
total distance = 2d
distance / time = average
2d / ( d/50 + d/60)
2 / (1/50 + 1/60) = 54.5 m/hr
