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monitta
3 years ago
6

Please show hw you got your answer, and please show which one is the correct one. (coupon A or coupon B).

Mathematics
1 answer:
Eddi Din [679]3 years ago
7 0
Coupon A: $18 rebate on a $59 printer
Coupon B: 35% off of a $59 printer

With coupon A, the final price is 59-18 = 41 dollars
With coupon B, the final price is 59-0.35*59 = 38.35 dollars

So coupon B offers the lower price. The price difference between the coupon options is $2.65 (41-38.35 = 2.65); meaning that coupon B is the better option by $2.65

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Explanation of Baye's theorem.
ELEN [110]

I will be including both an basic explanation of what it is and its proof.

I'm guessing you are either learning about conditional probability at school or preparing for competitions.

Baye's theorem states:

P(A|B)=\frac{P(B|A)P(A)}{P(B)}

That is the theorem itself and it means that the probability that event A happens given B is true equals the probability event B happens given A is true times the probability event A happens divided by the probability B happens.

That was the basic of the theorem and the proof of this is basically just testing how well you understand what conditional probability is.

P(A|B)=\frac{P(AintersectB)}{P(B)}

P(B|A)=\frac{P(BintersectA)}{P(A)}

Now we know that the probably that A and B both happens is the same as the probably that B and A both happens.

Therefore P(A|B) can be seen as P(B|A) multiplied by P(A) and then divided by P(B) which gives the right hand side of the first equation. And this is basically the theorem.

P(A|B)=\frac{P(B|A)P(A)}{P(B)}

**Note P(B) have to be not equal to 0 because having a 0 in the denominator would make this equation undefined.

If you have any questions or need further explanations please ask me in the comments of the answer, I hope this helped!

6 0
3 years ago
Write an equation for the translation of x^2+y^2=25 by 7 units left and 2 units down
soldi70 [24.7K]
Your equation is a circle where the center is the origin (0, 0) and the radius is 5. With the translation, the new center is (- 7, - 2). Radius stays the same. 

Your new equation is:

(x + 7)² + (y + 2)² = 25
4 0
2 years ago
Value of log2 8 + log 3(1/3)
Dvinal [7]
There’s no answer choices but i got log(28•3^1/3)
5 0
2 years ago
In the function y=4x^2-5, what effect does the number -5 have on the graph, as compared to the graph of y=x^2
kati45 [8]
It moves the graph 5 steps downwards on the y axis.
3 0
3 years ago
How should the decimal point in 52.48 be moved to determine the product 52.48×105 ?
tensa zangetsu [6.8K]

Answer:

5510.4

Step-by-step explanation:

4 0
3 years ago
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