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monitta
3 years ago
12

NCn is __________ equal to 1. always sometimes never

Mathematics
2 answers:
Black_prince [1.1K]3 years ago
7 0
<span>NCn is always equal to 1. </span>
solong [7]3 years ago
5 0
The third is either A or B, depending on your assumptions. Most likely the "correct" answer is A, but I would argue it's B, since (-1)C(-1) <span>is not equal to 1 (it's not defined).

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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Factorise 3y^3-4xy+2y
sineoko [7]

Answer:

3y^3-4xy+2y

y(3y²-4x+2)

5 0
3 years ago
A rectangular sheet of paper has an area of 1/2 square feet. The length of the paper is 2 feet. What is the width of the paper i
NARA [144]

Answer:

1/4 ft

Step-by-step explanation:

Area is equal to length times width

A = lw

1/2 = 2*w

Divide each side by 2

1/2 ÷2 = 2w/2

1/4 = w

3 0
3 years ago
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Which is the better buy if the cost 6$ for 2 for refills or would the 12$ for 3 refills be better
Degger [83]
6 for 2 refills. Since its less money and you still get refills.
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3 years ago
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write an equation that is perpendicular to x - 3y =3 and passes through the point (5,-9) in slope-intercept form.
Aleksandr [31]

9514 1404 393

Answer:

  y = -3x +6

Step-by-step explanation:

The perpendicular line will have the coefficients of x and y swapped (and one of them negated), and will have a constant appropriate to the point the line needs to go through.

The equation will look like ...

  x -3y = 3 . . . . . . . . . . . . . given line

  3x +y = constant . . . . . . perpendicular line

where "constant" can be found by substituting for x and y.

  3x +y = 3(5) +(-9)

  3x +y = 6 . . . . equation in standard form

To put this in slope-intercept form subtract 3x:

  y = -3x +6

6 0
3 years ago
I ACTUALLY REALLY NEED A ANSWER FOR THIS SO IF YOU DONT ACTUALLY NO PLEASE DO NOT ANSWER!!!!
MrMuchimi

Answer:

The surface area is 10.26 feet.

Step-by-step explanation:

A=lw+l(w

2)2+h2+w(l

2)2+h2=0.8·0.8+0.8·(0.8

2)2+62+0.8·(0.8

2)2+62≈10.26131

3 0
3 years ago
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