3 years ago

What is the coefficient of the term x5y7 in the expansion of (x - y)12 ?

Mathematics

1 answer:

lozanna [386]3 years ago

6 0

Answer:

12 and -12

Step-by-step explanation:

12x-12y is the expansion using the distributive property, so the coefficient of x is 12 and the coefficient of y is -12

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Ian can buy bottles of water in packages of 6 for $9.24 or in packages of 4 for $8.80. How much money does he save by buying 12

kati45 [8]

Answer:

Ian saves 7.92

Step-by-step explanation:

9.24/6=1.54

2*9.24= 18.48

8.80/4=2.20

3*8.80= 26.40

26.0 - 18.48 = 7.92

7 0

3 years ago

Brian has 16 yards of chain measured and cut at the. Hardware store. The chain will cost him 47.52$ how much is that per food? _

mojhsa [17]

3 feet= 1 yard

16*3= 48 feet.

47.52/48= 0.99

It will cost Brian $0.99 per foot.

Find the unit rate.

49.50/50= 0.99

No, it wouldn't. It would be the <em>same price

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I hope this helps!
~kaikers

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3 years ago

Read 2 more answers

What value of x makes this equation true 12x-15=6-3x

Alex

Answer:

x = 1.4 (or 21/15)

Step-by-step explanation:

12x - 15 = 6 - 3x

+3x +3x

-----------------------

15x - 15 = 6

+15 +15

-----------------------

15x = 21

/15 /15

----------------------

x = 21/15 or

x = 1.4

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3 years ago

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Suppose that a ball is dropped from the upper observation deck of the CN Tower in Toronto, 450 m above the ground. Find the velo

mr Goodwill [35]

Answer:

1350

Step-by-step explanation:

460 X 3

7 0

3 years ago

Finding domain f(x)=3x+1/x-5

arlik [135]

The function is undefinded if the denominator, x-5, equals 0.
So $x-5 \neq 0 \\ 
x \neq 5$ .
The domain is $x \neq 5$ .
In interval notation, this is (-infinity, 5) u (5, infinity).

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3 years ago