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2 years ago

Help with this please

Mathematics

1 answer:

Stella [2.4K]2 years ago

6 0

Answer:

1 and 7 and 5

Step-by-step explanation:

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If f(x) = 3x2 - x, find f(-2). 10 14 38

mojhsa [17]

f(x) = 3x^2-x

F(-2)

replace x with -2

3(-2)^2 - -2 =

3*4 +2 = 14

Answer is 14

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3 years ago

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4x+1=9+4y solve for y

koban [17]

Answer:

y = x-2

Step-by-step explanation:

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2 years ago

Find the value of x if 8∧3x/2∧10 = 4∧2x/16

solniwko [45]

Answer:

Solve for

by cross multiplying.

Exact Form:

6/5

Decimal Form:

1.2

Mixed Number Form:

1 1/5

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3 years ago

Inquiries arrive at a record message device according to a Poisson process of rate 15 inquiries per minute. The probability that

zloy xaker [14]

Answer:

0.0498 = 4.98%

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 time interval.

Inquiries arrive at a record message device according to a Poisson process of rate 15 inquiries per minute.

Each minute has 60 seconds.

So a rate of 1 inquire each 4 seconds.

The probability that it takes more than 12 seconds for the first inquiry to arrive is approximately

Mean of 1 inquire each 4 seconds, so for 12 seconds $\mu = \frac{12}{4} = 3$

This probability is P(X = 0).

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

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

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2 years ago

2t + 1 + 6 + 4t = 55 show your work

Ivan

Combine like terms, 1+6 is 7 and 2t+4t is 6t. so 6t+7=55. get the t by itself by subtracting 7 from both sides. 6t=48, divide by 6. t=8

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2 years ago

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