Answer:
n = 0 or n = -5/2
Step-by-step explanation:
We'd like to solve this equation for n: 
.
Cross-multiply and distribute:
(2 - n) * n = (n + 4) * 3n
2n - n² = 3n² + 12n
Move everything to one side:
3n² + n² + 12n - 2n = 0
4n² + 10n = 0
Factor our 2n:
2n * (2n + 5) = 0
By the Zero Property of Multiplication, either 2n = 0 or 2n + 5 = 0 to make this equation true:
2n = 0 OR 2n + 5 = 0
n = 0/2 = 0 OR 2n = -5 ⇒ n = -5/2
Thus, n = 0 or n = -5/2.
<em>~ an aesthetics lover</em>
we know that
total cards=10
even numbers=2,4,6,8,10 -----> 5 cards
the probability that getting an even number is
P=5/10
The probability that getting an odd number
n 1 -----> P=1/10
n3 ----> P=1/10
n5 ---> P=1/10
n7 ----> p=1/10
n 9 ---> P=1/10
The expected value is equal to
EV=(1)(1/10)+(3)(1/10)+(5)(1/10)+(7)(1/10)+(9)(1/10)-(4.20)(5/10)
EV=(25/10)-(21/10)
EV=4/10
EV=$0.40
<h2>The expected value is $0.40</h2>
Part B
Jane can expect to win money after playing the game many times
the answer is
<h2>Jane can expect to gain money</h2><h2>She can expect to win $0.40 per draw</h2>
Answer:
The solution set is (5,6).
Step-by-step explanation:
Given equations are:
-6x + 6y= 6 Eqn 1
-6x + 3y=-12 Eqn 2
Subtracting Eqn 2 from Eqn 1
(-6x+6y)-(-6x+3y)= 6-(-12)
-6x+6y+6x-3y=6+12
3y = 18
Dividing both sides by 3
Putting y=6 in Eqn 1
-6x+6(6)=6
-6x+36=6
-6x=6-36
-6x=-30
Hence,
The solution set is (5,6).
Answer: Genie paid less
Step-by-step explanation:
$48 - $4.80 = $43.20 - $42.95 = $0.25
Answer:
5
Step-by-step explanation:
I assume you are looking for page numbers 5 and less so
1,2 ,3,4,5
the rest of the pages are greater than the number 5
