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hichkok12 [17]
4 years ago
9

A box contains seven 40-W bulbs, four 60-W bulbs, and six 75-W bulbs. If bulbs are selected one by one in random order, what is

the probability that at least two bulbs must be selected to obtain one that is rated 75 W? (Round your answer to three decimal places.)
Mathematics
1 answer:
OLEGan [10]4 years ago
3 0

Answer: 2.833

Step-by-step explanation:

Add up the amount of light bulbs: (7+6+4).

Divide 17 (^the sum^) by 6 (the amount of 75 watt bulbs).

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Answer:

$14.25

Step-by-step explanation:

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Please help ! &lt;3<br><br> Find the value of x.
jolli1 [7]
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3 years ago
A game has a circular playing area in which you must hit a ball into a circular hole. The area of the playing area is 16ft2. The
frez [133]

Considering the area of the hole, it is found that there is a 4.9% probability of hitting a ball into the circular hole.

<h3>What is the area of a circle?</h3>

The area of a circle of radius r is given by:

A = \pi r^2

In this problem, the hole has a diameter of 1 ft, hence it is radius is of r = 1 ft/2 = 0.5 ft, and it's area is given by:

A = \pi \times (0.5)^2 = 0.7854 \text{ft}^2

Hence the probability is given by:

p = 0.7854/16 = 0.049 = 4.9%

More can be learned about probabilities at brainly.com/question/14398287

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5 0
2 years ago
A can of coke occupies a volume of 5 ml and has a mass of 40 grams. Find its density?
Karo-lina-s [1.5K]

Answer:

Step-by-step explanation:

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8 0
3 years ago
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4^3 = ?<br><br>A. 64<br>B. 7<br>C. 12<br>D. 1
Alexxandr [17]

By defining how exponents work, we conclude that 4^3 = 64, so the correct option is A.

<h3>How to find the cube of 4?</h3>

Let's remember how exponents work.

If we have a number a to the exponent n:

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It means that we need to multiply the number a by itself n times.

Then, in this case:

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Now we can solve that product:

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Then we conclude that the correct option is A

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brainly.com/question/847241

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2 years ago
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