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kumpel [21]
3 years ago
9

Can someone explain this to me? I don't understand how they got from what I labeled 1 to what is labeled 2. Where did the 1/3 co

me from?

Mathematics
2 answers:
bixtya [17]3 years ago
4 0

Answer:

see attached

Step-by-step explanation:

see attached

worty [1.4K]3 years ago
3 0

Step-by-step explanation:

Using exponent rules:

3^(n+1) = 3^(n) 3^(1)

So:

3^n / 3^(n+1)

= 3^n / (3^n × 3)

= 1 / 3

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6x - 3y = -6<br> y = 2x + 2
Verizon [17]

Answer:

y=0, x=1

Step-by-step explanation:

6x-3y= -6 ...... equation 1

y =2x+2 ..... equation 2

subtract 2x from both sides

y-2x=2x-2x+2

y-2x=2

6x-3y= -6

y-2x=2

Rearrange

6x-3y= -6 ........x1

-2x +y=2............x3

6x-3y= -6

-6x +3y=2

0y=0

y=0

substitute y=0 in equation 1

6x-3xo= -6

6x= -6

x-6/6

x = -1

4 0
3 years ago
Gambler is deciding whether or not to take a bet. she must pay $40 to take the bet, but if she wins, she willprofit$225.theproba
Vesnalui [34]
Expected value of the bet is
the sum of the products of value of outcome and its probability,
less the amount paid to place the bet.

Outcomes value probability
win            225    1/4
lose               0    3/4
cost of bet = 40

So expected value of bet
E[X]=225*(1/4)+0*(3/4)-40
=56.25-40
=16.25

This means that in the long run, gambler will win, since the expected value is positive.  (does NOT mean she will win in the next bet!)
3 0
3 years ago
Use the properties of geometric series to find the sum of the series. for what values of the variable does the series converge t
Oksi-84 [34.3K]

Answer:

- The sum of the series is given as

7/(1 + 7z)

- The series converges for (-1/7, 1/7)

Step-by-step explanation:

Given the geometric series:

7 - 14z + 28z² - 56z³ + ...

The common ratio r is given as

-14z/7 or 28z²/(-14z) or -56z³/(28z²) and so on

r = -7z

The sum of the series is given as

S = a/(1 - r)

Where a is the first term in the series.

S = 7/(1 -(-7z))

= 7/(1 + 7z)

The series converges for |-7z| < 1

That is for -1/7 < z < 1/7

7 0
3 years ago
Read 2 more answers
What is 1/4 - 1/3 + 1/3=​
mamaluj [8]

Answer:

1/4

-1/3+1/3 cancels each other

Step-by-step explanation:

6 0
3 years ago
BC=6x+4 AC=52 and AB=4x+8 find BC
sweet-ann [11.9K]
The awnser to this is 10x
3 0
3 years ago
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