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2 years ago

Shows that n+1Cn= mCn-1 + mCn

Mathematics

1 answer:

ArbitrLikvidat [17]2 years ago

4 0

Answer:

I think the Question is incorrect; the left hand side of the equation should be

m+1Cn

Step-by-step explanation:

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A manufacturing company builds construction machinery. It sells 10 machines for $18,100 and 20 machines for $26,600. Which equat

kolezko [41]

Answer:

D. R(x)=850x+9600

Step-by-step explanation:

Use the given information as points on a line, and find the slope.

The two given points are (10, 18,100) and (20, 26,600).

slope = (difference in y)/(difference in x)

slope = (26,600 - 18,100)/(20 - 10)

slope = 8,500/10

slope = 850

Only choice D. has a slope of 850.

Answer: D. R(x)=850x+9600

8 0

3 years ago

The percentage change of a ratio of two variables is approximately the percentage change in the numerator _____ the percentage c

olchik [2.2K]

Answer:

"The percentage change of a ratio of two variables is approximately the percentage change in the numerator <u>minus</u> the percentage change in the denominator."

Step-by-step explanation:

The percent change in a number is determined by dividing the difference between the new number and original number by the original number and multiplying the result by 100.

Suppose the original ratio of two numbers is: $\frac{25}{100}$ .

And the new ratio is: $\frac{75}{100}$

The percent change is:

$Change\%=\frac{75-25}{100}\times100=\frac{50}{100}\times100=50\%$

Thus, the complete statement is:

"The percentage change of a ratio of two variables is approximately the percentage change in the numerator <u>minus</u> the percentage change in the denominator."

8 0

3 years ago

Read 2 more answers

PLEASE HELP ME WITH THIS! PLEASE!

Katena32 [7]

Answer:

Its D.

Step-by-step explanation:

All you have to do is divide 3 1/2 by 1/2.

7 0

2 years ago

Read 2 more answers

Who should fill out the W-2 form?

denpristay [2]

The taxpayer’s employer fills out the forms because they have the info you need these to turn in your taxes and if your jod is anything like mine they wait last minute to send them out

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2 years ago

Select all ratios equivalent to 1:8.

DochEvi [55]

Answer: 2:16 - 3:24 - 4:32 - 5:40 - 6:48 - 7:56 - 8:64 // just keep adding each side to its own side

Step-by-step explanation:

Well I don't know the answer choices so

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2 years ago