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horsena [70]
4 years ago
5

write the expression (4x-2)*6(2x+7) int he standard form of a quadratic expression, ax^2+bx+c. what are the values of the coeffi

cients of each term and the constant term
Mathematics
1 answer:
dexar [7]4 years ago
6 0
(4x - 2)* 6(2x + 7)
=(4x - 2)(12x + 42)
= 4x(12x + 42) - 2(12x + 42
= 48x^2 + 168x - 24x - 84
= 48x^2 + 144x - 84 Answer
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Solve the equation as shown 2(x+6) = 22
lutik1710 [3]

Answer:

x = 5

Step-by-step explanation:

2(x+6) = 22

2x+12 = 22

2x = 10

x = 5

6 0
3 years ago
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The number of typing errors made by a typist has a Poisson distribution with an average of three errors per page. If more than t
damaskus [11]

Answer:

0.6472 = 64.72% probability that a randomly selected page does not need to be retyped.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given interval.

Poisson distribution with an average of three errors per page

This means that \mu = 3

What is the probability that a randomly selected page does not need to be retyped?

Probability of at most 3 errors, so:

P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3)

In which

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 0) = \frac{e^{-3}*3^{0}}{(0)!} = 0.0498

P(X = 1) = \frac{e^{-3}*3^{1}}{(1)!} = 0.1494

P(X = 2) = \frac{e^{-3}*3^{2}}{(2)!} = 0.2240

P(X = 3) = \frac{e^{-3}*3^{3}}{(3)!} = 0.2240

Then

P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.0498 + 0.1494 + 0.2240 + 0.2240 = 0.6472

0.6472 = 64.72% probability that a randomly selected page does not need to be retyped.

3 0
3 years ago
Not sure how to do the write in long form.
tekilochka [14]
1. 100000
2. 0.000000000001
3. 400
5 0
3 years ago
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You spin the spinner, flip a coin, then spin the spinner again. Find the probability of the compound event. Write your answer as
Margaret [11]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
You and a friend both work two different jobs. the system of linear equations represents the total earnings for x hours worked a
levacccp [35]
Me :           4 x + 8 y   =  64
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