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kogti [31]
3 years ago
9

If A and Bare independent events, which equation must be true?

Mathematics
1 answer:
malfutka [58]3 years ago
8 0

Answer:

Option C) is correct

Therefore option P(B\A)=P(A)\times P(B) is correct

Step-by-step explanation:

Given that A and B are independent events .

" Two events, A and B are said to be independent if and only if

P(B\A)=P(A)\times P(B) "

Therefore it can be written as P(B\A)=P(A)\times P(B)

Therefore option C) is correct

Therefore option P(B\A)=P(A)\times P(B) is correct

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megan hughes deposits 2100 in an account that pays simple interest. when she withdraws her money 11 months later, she receives $
USPshnik [31]

Answer:

The rate at which the account pay the deposit is 2 %

Step-by-step explanation:

Given as :

The principal amount deposited in account = $2100

The rate of interest = r % simple interest annually

The time period = 11 months = \frac{11}{12} year

The amount received = $2138.50

Now<u>, From Simple Interest method </u>

Simple Interest = \dfrac{\textrm Principal\times \textrm rate\times \textrm time}{100}

Or, Interest = \dfrac{2100\times r\times \frac{11}{12}}{100}

Or, Interest = \frac{21\times r\times 11}{12}

Or, Interest = 19.25 r

Now, Interest = Amount - Principal

So, 19.25 r = $2138.50 - $2100

Or, 19.25 r = $38.5

∴ r = \frac{38.5}{19.25}

I.e r = 2

So, rate of interest = r = 2 %

Hence The rate at which the account pay the deposit is 2 % Answer

8 0
3 years ago
Can someone help me with this please idk if it’s the right answer
hram777 [196]

Answer:

x = 2

Step-by-step explanation:

5x + (x + 12)

6x = 12

x = 2

3 0
3 years ago
Write the equation for an exponential function, in the form y=axb
Scorpion4ik [409]
F(x) = 3x

Hope this helps
5 0
3 years ago
Translate each sentence into an equation.
Neporo4naja [7]

Step-by-step explanation:

3/4x+5=-19

       -5   -5

3/4x=-24

/ 3/4 / 3/4

x=-32

hope it helps! :3 let me know if you need help with other algebraic equations!

6 0
3 years ago
My grandparents have four grandchildren. The product of the ages of the four grandchildren is 67 184. The youngest grandchild is
fomenos

Answer:

lets say they are a,b,c,d

a*b*c*d=67184

a<10

a=d-30

also bear in mind that b and c are in between

the rest is just trial and error as long as you satisfy all those equations above

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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