(a) Simplify
$\[\dfrac{\dbinom{n}{k}}{\dbinom{n} {k - 1}}.\]$
(b) For some positive integer...
Mathematics, 31.01.2022 19:20 maxi12312345
(a) Simplify
$\[\dfrac{\dbinom{n}{k}}{\dbinom{n} {k - 1}}.\]$
(b) For some positive integer $n,$ the expansion of $(1 + x)^n$ has three consecutive coefficients $a,$ $b,$ $c$ that satisfy $a:b:c = 1:7:35.$ What must $n$ be?
Answers: 3
Mathematics, 21.06.2019 16:30
The table above shows approximate conversions from gallons to liters. what is the value of x?
Answers: 2
Mathematics, 21.06.2019 17:30
Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.
Answers: 3
Mathematics, 21.06.2019 19:00
You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?
Answers: 1
Mathematics, 19.05.2020 22:21
Mathematics, 19.05.2020 22:21
Mathematics, 19.05.2020 22:21
Mathematics, 19.05.2020 22:21
Mathematics, 19.05.2020 22:21