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nataly862011 [7]
4 years ago
6

A stack of 8 different cards are shuffled and spread out face down. if 5 cards are turned face up, how many different 5-card com

binations are possible?
Mathematics
1 answer:
mars1129 [50]4 years ago
8 0
There are 56 different combinations of cards.

This is a combination problem, not a permutation.

Therefore, first we need to find the number of total possibilities.

It would be:  8 x 7 x 6 x 5 x 4
6720

Then, we need to divide those possibilities by the number those 5 cards can be rearranged.

6720 / (5 x 4 x 3 x 2 x 1)  = 56
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Answer:

x=−22/13

Step-by-step explanation:

Let's solve your equation step-by-step.

2x−8(5+3x)=4(x+1)

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3 years ago
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netineya [11]
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An emergency room doctor prescribes a certain pain medication to be delivered through an IV drip. She prescribes 800 mL of the
Keith_Richards [23]

Answer:

The number of drips per minute needed to deliver the medication at the prescribed dosage is 50 drips per minute

Step-by-step explanation:

The given parameters are;

The volume of the prescribed medication to delivered through IV = 800 mL

The duration over which the drug is to be delivered = 8 hours

The rate at which the IV delivers the medication = 30 drips/1 mL

800 mL = 800 × 1 mL

Therefore, the total number of drips in 800 mL= 800 mL × 30 drips/mL = 24,000 drips

The rate at which the drug is delivered = 800 mL/(8 hours) = 100 mL/hr = 100/60 mL/minute = 10/6 mL/minute

The total number of drips in 10/6 mL= 10/6 mL × 30 drips/mL = 50 drips

∴ The rate at which the medication needs to be delivered = 10/6 mL/minute = 50 drips/minute

The number of drips per minute needed to deliver the medication at the prescribed dosage of 800 mL/(8 hours) = 10/6 mL/minute = 50 drips per minute.

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3 years ago
If a dozen widgets cost $30.00, how much will 80 widgets cost?
Usimov [2.4K]

Answer:

$200.00

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12 widgets cost $30.00, meaning 1 widget costs ¢2.5. So then multiply 80 and 2.5, getting a total of $200.00.

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The difference between the mean of the sample and the mean of the population is A. 0.55

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2.8-2.25= 0.55

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brainly.com/question/20118982

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2 years ago
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