1: 9+13-3= 19
2: 6-3= 3
3: 3(9)= 27
Answer:
b = -2c ± [√(4π²c² + πA)]/π
Step-by-step explanation:
A = 4πbc + πb^2
A = 4πbc + πb²
πb² + 4πbc - A = 0
Using the quadratic formula to solve this quadratic equation.
The quadratic formula for the quadratic equation, pb² + qb + r = 0, is given as
b = [-q ± √(q² - 4pr)] ÷ 2p
Comparing
πb² + 4πbc - A = 0 with pb² + qb + r = 0,
p = π
q = 4πc
r = -A
b = [-q ± √(q² - 4pr)] ÷ 2p
b = {-4πc ± √[(4πc)² - 4(π)(-A)]} ÷ 2π
b = {-4πc ± √[16π²c² + 4πA]} ÷ 2π
b = (-4πc/2π) ± {√[16π²c² + 4πA] ÷ 2π}
b = -2c ± [√(4π²c² + πA)]/π
Hope this Helps!!!
(-8,11)(4,7/2)
slope(m) = (7/2 - 11) / (4 - (-8) = (7/2 - 22/2) / (4 + 8) = (-15/2) / 12 = -15/2 * 1/12 = -15/24 = -5/8
y = mx + b
slope(m) = -5/8
use either of ur points...(-8,11)...x = -8 and y = 11
now we sub and find b, the y int
11 = -5/8(-8) + b
11 = 5 + b
11 - 5 = b
6 = b
so ur equation is : y = -5/8x + 6
There are 116,280 ways to select the officers.
Since order is important, we use permutations:
A
this is a geometric sequence since there exists a common ratio r between the terms
r = 
= 
= 
= 3
B
to obtain the next term in the sequence multiply the previous term by 3
= 3 
← recursive rule
C
the n th term of a geometric sequence is
= 
where is the first term in the sequence
= 7 × 
← explicit rule
