MATHEMATICS COLLEGE

In how many ways can 4 light bulbs be selected from a batch of 43 lights bulbs to be tested for defects? Assume no light bulb will be tested more than once.

Answers

Answer 1

Answer:

Answer:

There are 123,410 ways

Step-by-step explanation:

The number of ways or combinations in which we can select k elements from a group of n elements is given by:

$(n!)/(k!(n-k)!)$

In this case, we can replace n by 43 and k by 4, because we are going to select 4 light bulbs from a batch of 43 light bulbs.

So, the number of combinations is calculated as:

$(43!)/(4!(43-4)!)=123,140$

It means that there 123,410 ways to select 4 light bulbs from a batch of 43 lights bulbs to be tested for defects

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Answers

Answer:

Step-by-step explanation:

(1 point) The rates of on-time flights for commercial jets are continuously tracked by the U.S. Department of Transportation. Recently, Southwest Air had the best rate with 80 % of its flights arriving on time. A test is conducted by randomly selecting 20 Southwest flights and observing whether they arrive on time.

Answers

Answer:

No. Southwest flights did not arrive on time.

Step-by-step explanation:

Please see attachment

ORDER THE SIDE LENGTHS FROM LEAST TO GREATEST

help asap!!!

Answers

Answer:

IJ<JH<HI

Step-by-step explanation:

<H would be 43.

The side across from the smallest angle is the smallest side. IJ

The side across from the middle angle is the middle side. JH

The side across from the largest angle is the largest side. HI

In ΔUVW, the measure of ∠W=90°, VW = 29 feet, and UV = 69 feet. Find the measure of ∠U to the nearest degree.

Answers

Answer:

Step-by-step explanation:

Answer:

the answer is 25

Step-by-step explanation:

A manufacturer uses 34 yard of fabric in each skirt.How many yards of fabric will the manufacturer use in 4 skirts? in 7 skirts? in 9 skirts?

Answers

Answer:

She would use 136 yards in 4 skirts, 238 yards in 7 skirts, and 306 yards in 9 skirts. Hope this helps

Step-by-step explanation:

Is the sum of any 2 consecutive prime numbers also prime?

Answers

Answer:

Yes! (it’s making me write 20 letters so yes is ur answer ok cool)

Yes beachside I really don’t know you it juts is

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