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2 years ago

What is the surface area ?

Mathematics

2 answers:

vodomira [7]2 years ago

6 0

The answer will be 50 because if you are doing Area the formula is length times width therefore you would multiply all the numbers and you will end up with 50 feet cubed

Maurinko [17]2 years ago

5 0

Answer:

C 90 ft³

Step-by-step explanation:

surface area = 2 (h · l + h · w + l · w)

The measurements of this rectangular prism is:

h = 2

w = 5

l = 5

2 (2 · 5 + 2 · 5 + 5 · 5)

Using PEMDAS, we have:

2 (10 + 10 + 25)

2 (45)

90 ft cubed

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Vehicles leave an airport parking facility (arrive at parking fee collection booths) at a rate of 500 veh/h (the time between ar

Nutka1998 [239]

Answer:

At least 3 processing booths should be open.

Step-by-step explanation:

1 vehicle spends an average of 15 seconds in a booth

In N booths , there will be N/15 vehicles in 1 second

In 1 hr, there will be N/15 * 3600 vehicles

Therefore, there will be a total of 240N vehicles/hour

Actual arrival rate of vehicles at the airport is 500 veh/h

Probability of arrival, P = $\frac{Number of possible outcomes}{Total outcomes}$

P = 500/240N

P = 2.083/N

For the average time spends to be below 5 seconds

$\frac{(\frac{P^{2} }{1-p} )}{500} = 5$ , since 500 is the average value.

$\frac{P^{2} }{1-p} } = 2500\\P^{2} = 2500 (1-P)\\P^{2} = 2500 - 2500P\\(\frac{2.083}{N}) ^{2} = 2500 - 2500(\frac{2.083}{N})$

$2.083^{2} = 2500N^{2} - 5208N\\2500N^{2} - 5208N - 4.34 = 0$

$N^{2} -2.0832N - 0.0017 = 0$

Solving for N using the quadratic formula with a = 1, b = -2.0832, c = -0.0017

$N = \frac{-b \pm \sqrt{b^{2} -4ac} }{2a} \\N = \frac{2.0832 \pm \sqrt{(-2.0832)^{2} -4*1*(-0.0017)} }{2}$

N = 1.0416 ± 1.0424

N = 2.084 or -0.0008

N = 2.084 is the only realistic value here

Therefore, the smallest number of processing booths that must be open should be 3

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2 years ago

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nignag [31]

Answer:

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3 years ago

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3 years ago

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Help me please I’ll give brainliest

Lady bird [3.3K]

Answer:

x=124

Step-by-step explanation:

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What is the surface area ?​

What is the surface area ?