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2 years ago

Please help me on question number 9

Mathematics

2 answers:

a_sh-v [17]2 years ago

8 0

The formula is A=bh meaning to get the area you need to multiply the base of the shape by the height of the shape but your answer would be 15cm squared

mario62 [17]2 years ago

4 0

15.2 yards
because you multiply 1 1/5 times 5 times 3 and get your answer.
The formula is L times W times H

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(7 points) Cars arrive at a toll both according to a Poisson process with mean 80 cars per hour. If the attendant makes a two-mi

saveliy_v [14]

Answer:

The probability that at least 1 car arrives during the call is 0.9306

Step-by-step explanation:

Cars arriving according to Poisson process - 80 Cars per hour

If the attendant makes a 2 minute phone call, then effective λ = 80/60 * 2 = 2.66666667 = 2.67 X ≅ Poisson (λ = 2.67)

Now, we find the probability: P(X≥1)

P(X≥1) = 1 - p(x < 1)

P(X≥1) = 1 - p(x=0)

P(X≥1) = 1 - [ (e^-λ) * λ^0] / 0!

P(X≥1) = 1 - e^-2.67

P(X≥1) = 1 - 0.06945

P(X≥1) = 0.93055

P(X≥1) = 0.9306

Thus, the probability that at least 1 car arrives during the call is 0.9306.

5 0

2 years ago

Number of whole numbers between 45 and 69 is _________ . (a) 31 (b) 23 (c) 25 (d) 28

tatiyna

The number of whole number is 23 through subtracting the numbers. hope it helps ☺️

8 0

2 years ago

Read 2 more answers

Which has the greater slope B is not the answer ...

olga nikolaevna [1]

B is the answer.

The slope i got for the table is -1 because i divided -2 by 2.

The slope i got for the graph was 0 because 0/7 is 0.

-1 < 0

6 0

2 years ago

The amount of chlorine in a swimming pool is proportional to the volume of water. The pool has 2.5 milligrams of chlorine per li

stira [4]

Answer:

There are 20,000 milligrams chlorine in the pool.

Step-by-step explanation:

Given:

The chlorine per liter of water in the pool is 2.5 milligrams.

The volume of water in the swimming pool is 8000 gallons.

Now, to find the quantity of chlorine in the pool.

Let the quantity of chlorine be $x.$

The gallons of water in the swimming pool = 8000.

The milligrams of chlorine per liter of water in the pool = 2.5.

According to question, the amount of chlorine in the swimming pool is proportional to the volume of water.

So, 2.5 mg of chlorine is equivalent to 1 liter.

Thus, $x$ is equivalent to $8000.$

Now, to get the quantity of chlorine by using cross multiplication method:

$\frac{2.5}{1} =\frac{x}{8000}$

By cross multiplying we get:

$20000=x\\\\x=20,000\ mg.$

Therefore, there are 20,000 milligram chlorine in the pool.

6 0

2 years ago

How do you write 12,800 in scientific notation?

evablogger [386]

Answer:

Step-by-step explanation:

12,800 written as 1.28 x 104 in scientific notation

7 0

2 years ago