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2 years ago

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Mathematics

1 answer:

Norma-Jean [14]2 years ago

4 0

I really do not get it . It’s this a question ? If so can you be a little more specific .

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Find each missing lengths to the nearest tenth PLEASE HELP

alisha [4.7K]

Answer:

For #1, 8.9.

Step-by-step explanation:

I can attempt to answer it, but I can't promise anything.

Alright, so, the equation for this should be A²+B²=C²

C is usually the longer side, which for you is the side that is missing.

Let's try the first one. If what I see is right, the 2 sides are 4 and 8. A is 8 and B is 4.

That means that the equation would be 8²+4²=C²

That would be 64+16=80

The equation is now 80= c²

The opposite of "to the power of 2" is a square root. So, now you're going to find the square root of 80, which is 8.9 to the nearest tenth.

So, for the first question, the answer should be 8.9

I hope this helps you solve the rest.

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3 years ago

How is 0.00000432 expressed in standard scientific notation?

cupoosta [38]

Answer

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Step-by-step explanation:

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3 years ago

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Directions: Tell whether the following is a quadratic inequality or not.

Leya [2.2K]

Anser

(b2 – 4ac). sorry if this doesnt help it doesnt make sense on my screen it shows a weird equation

Step-by-step explanation:

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2 years ago

Yani buys a certain brand of cereal that costs $10 per box. Yani changes to a super-saving brand of the same size. The equation

Keith_Richards [23]

A) Original price : y =10.x
Cheaper brand : y = 7x
The original box is $3 more than the cheap one.
Proof:Suppose 1 box is bought of each (x=1),Original will cost $10 & the Cheaper Price is $7

B) Each time he buys a cheap brand he save $3 ($10-$7).
On 5 cheap boxes, He would save $3 x 5 boxes = $15.

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3 years ago

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home security service. This private home security service guarantees to either dispatch one of their own five guards immediately

Irina-Kira [14]

Answer:

The fraction of the time is incoming alarms directed to the police is 74.02%

The home security company has to pay $3,197,665 the local police every month.

Step-by-step explanation:

As per the given data

Numbers of guards = 5 guards

Calls received per hour = 12 calls per hour

Activity time = 90 minutes

First, calculate the inter-arrival time

Inter-arrival time = Minutes in an hour / Numbers of calls received per hour = 60 minutes per hour / 12 calls per hour = 5 minutes

First, calculate the ratio of activity time to inter-arrival time

Ratio = Activity time / Inter-arrival time = 90 minutes / 5 minutses = 18

Now calculate the probability of all 5 servers are busy using ratio of activity time to inter-arrival time

Probability = $P_{Servers}$ ( ratio )

Probability = $P_{5}$ ( 18 )

Probability = 0.7402

Probability = 74.02%

Hence the probability of incoming calls directed to the police is 74.02%

First, calculate the loss of customers

Loss of customers = Probability x ( 1 / Servers )

Loss of customers = 74.02% x ( 1 / 5 )

Loss of customers = 0.7402 x 0.20

Loss of customers = 0.14804 per minute

Loss of customers = 0.14804 per minute x 24 x 60 x 30 = 6,395.33 calls per month

Now calculate the total loss

Total loss = 6,395.33 calls x $500

Total loss = $3,197,665

3 0

2 years ago