The probability that no one is waiting in a given hour

Mathematics

2 answers:

VMariaS [17]3 years ago

6 0

Answer:

two people in an hour

Step-by-step explanation:

thats why I think that why no one is waiting

Bingel [31]3 years ago

5 0

Answer:

Step-by-step explanation:

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Let f(x)= (x^2+3x-4) and g(x)= (x+4)

RideAnS [48]

I. Multiply the first function by the second one.
f(x)*g(x) = (x^2+3x-4)*(x+4) = x^3 + 3x^2 - 4x + 4x^2 + 12x -16 = x^3 +7x^2 + 8x - 16.
The domain of this new function is the set of all real numbers (R). Other notation: from minus infinity to plus infinity. We came to this conclusion because the new function poses no restrictions; regardless of which x-value you take, you will get the appropriate y-value.

II. f(x)/g(x) = (x^2+3x-4)/(x+4) =
Ask yourself: which two numbers add up to 3 and multiply to -4? It's -1 and 4. Now we can represent f(x) as (x-1)(x+4).
Since we're dividing these 2 brackets by g(x)=x+4, we may now cancel (x+4). All that's left is x-1.
The domain here is the same as in the previous task - it is R.

8 0

3 years ago

Read 2 more answers

A group of friends decided to buy bulk chocolate from a candy store. If some friends each want 5 over 7 of a kilogram of a choco

AnnZ [28]

Each person = 5/7 kg

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Number of people that can share the 10kg of chocolate:
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$10 \div \dfrac{5}{7}$

$= 10 \times \dfrac{7}{5}$

$= 14$

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Answer: 14 can share the chocolate.
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7 0

3 years ago

Which of the following will make a confidence interval narrower and more precise?

swat32

Answer:

B. Larger sample size and lower confidence level

Step-by-step explanation:

The margin of error of a confidence interval is given by the following formula:

$M = z*\frac{\sigma}{\sqrt{n}}$