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morpeh [17]
3 years ago
6

Multiply 3x8y9.2x5y8

Mathematics
1 answer:
ololo11 [35]3 years ago
8 0

Answer:

6x^{13}y^{17}

Step-by-step explanation:

We need to multiply

3x^8y^9.2x^5y^8

We know the exponent rule of multiplication:

x^a y^b . x^cy^d = x^{a+c}y^{b+d}

If the bases are same the powers are added.

So,

=3*2 *x^8*x^5*y^9*y^8\\=^{8+5}y^{9+8}\\=6x^{13}y^{17}

So, the answer is:

6x^{13}y^{17}

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Answer:

The probability of eating pizza given that a new car is bought is 0.952

Step-by-step explanation:

This kind of problem can be solved using Baye’s theorem of conditional probability.

Let A be the event of eating pizza( same as buying pizza)

while B is the event of buying a new car

P(A) = 34% = 0.34

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P(B|A) = 42% = 0.42

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0.42 = P(BnA)/0.34

P(B n A) = 0.34 * 0.42 = 0.1428

Now, we want to calculate P(A|B)

Mathematically;

P(A|B = P(A n B)/P(B)

Kindly know that P(A n B) = P(B n A) = 0.1428

So P(A|B) = 0.1428/0.15

P(A|B) = 0.952

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Answer:

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Step-by-step explanation:

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