3 years ago

T=rs + s, for s solve

Mathematics

1 answer:

Greeley [361]3 years ago

5 0

It is t divided by r equals 2s

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The university police department keeps track of the number of tickets it write in a year. Last year the campus police wrote 1460

AlladinOne [14]

Answer:

Step-by-step explanation:

We are given that Ticket writing on campus follows a Poisson process.

Last year the campus police wrote 1460 tickets

So, $X \sim Poisson (1460 / year)$

1 year = 365 days

So, E(Y) = $\frac{1460}{365}=4$

So, the standard deviation of the number of tickets written per day by the campus police = $\sqrt{4} =2$

Hence the standard deviation of the number of tickets written per day by the campus police is 2

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3 years ago

Jerry started a used parts establishment. He marked up the items 30 percent of the purchase price. If one item sold for $715, wh

jek_recluse [69]

Answer:

Jerry paid $500.50.

Step-by-step explanation:

30 / 100 = 0.3

0.3 x 715 = 214.5

715 - 214.5 = 500.5

round to the nearest hundredth

3 0

2 years ago

If x/y = -3, then find x²/y² + y²/x².

sladkih [1.3K]

Answer:

9.11

Step-by-step explanation:

Given that,

$\dfrac{x}{y}=-3$

We need to find the value of $\dfrac{x^2}{y^2}+\dfrac{y^2}{x^2}$

The value of $\dfrac{y}{x}=\dfrac{-1}{3}$

So,

$\dfrac{x^2}{y^2}+\dfrac{y^2}{x^2}=(\dfrac{x}{y})^2+(\dfrac{y}{x})^2\\\\=(-3)^2+(\dfrac{-1}{3})^2\\\\=9+\dfrac{1}{9}\\\\=9.11$

So, the required answer is equal to 9.11.

6 0

3 years ago

A badge costs 78p.

Inga [223]

Sam would have 41 pence change

6 0

3 years ago

Read 2 more answers

Find the simplest interest. Include your dollar symbol ($). Only type in your answer.

postnew [5]

$32.00 is your answer. Hope I helped :)

8 0

3 years ago