<span>1/root(5-x) = 1/(root5 * root 1- x/5)
1/root5 * (1-x/5)^-1/2
Using the 1st 2 terms of the binomial expansion 1 +nx:
1/root5 ( 1 + x/10)
= X/10root5 + 1/root5</span>
Okay, all of these pairs add up to 1 or 100%, except for one pair. I'll convert them all to decimals, so all must add up to 1.
3/8 = 0.375
0.625 + 0.375 = 1
62% = 0.62
0.38 + 0.62 = 1
7/8 = 0.875
0.875 + 0.125 = 1
70% = 0.70
1/3 <span>≈</span> 0.33
0.70 + 0.33 = 1.03
So the last pair of probabilities(70%, 1/3) does not belong with the other three because it does not add up to 1 like the others.
X = books he had to start with
x - 34 + 3 = 11
x - 31 = 11
x = 11 + 31
x = 42 <=== he started with 42 books
Answer:
h = 2
Step-by-step explanation:
For the equation to have infinite solutions both sides must equate.
left side = 6x + 18
right side = h(3x + 9) substitute h = 2 , then
= 2(3x + 9) = 6x + 18 = left side