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3 years ago

Find the value of the expression 12y - 2xy, when x = 5 and y = 10.

Mathematics

2 answers:

Reptile [31]3 years ago

5 0

Answer: 20

12y - 2xy

Insert values into equation

12(10) - 2(5)(10)

120 - 2(50)

120 - 100

20

Stells [14]3 years ago

3 0

Answer:

12y-2xy

x=5, y=10

(12x10) -(2x5x10)

=120-100

=20

Step-by-step explanation:

1.first collect the information you have been given in the question to make answering of the question easy.

2.then substitute the x value (in this case 5) and the y value (10) into the expression 12y - 2xy on there respectful positions.

3.having done so, you can then multiply and thereafter subtract as the question requires you to do.

Note: only substitute the y and x values where y and x appear in the question.

Always start with multiplying, after substituting,before subtracting or adding.

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The probability that a consumer is comfortable having drones deliver their purchases is, p = 0.43.

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This is because in this case we need to compute the number of possible combinations of two consumers who are comfortable with drones.

So, X = number of consumers comfortable with drones, follows a Binomial distribution with parameters n = 5 and p = 0.43.

Compute the probability of getting two consumers comfortable with drones as follows:

$P(X=x)={5\choose x}\ 0.43^{x}\ (1-0.43)^{5-x};\ x=0,1,2,3...$

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