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Bess [88]
3 years ago
14

Find the coefficient of the x7y2term in the binomial expansion of (x+y)^9

Mathematics
1 answer:
statuscvo [17]3 years ago
8 0

Answer:

36

Step-by-step explanation:

first, see the formula in the attached picture.

now, by applying that formula we get :

the coefficient of the x7y2 is :

9C7 = 36  (you can either use a calculator or just the algebraic formula)

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Tim has $20 to buy snacks for 12 people in an office. Each person will get one snack. Tim is buying bags of pretzels that cost $
Greeley [361]

Answer:

  8 bags of pretzels

Step-by-step explanation:

Let x represent the number of bags of pretzels Tim buys. We assume he spends exactly $20 on exactly 12 bags of snack food. Then his purchase is ...

  1.50x + 2.00(12-x) = 20.00

  -0.50x +24.00 = 20.00 . . . eliminate parentheses, collect terms

  -0.50x = -4.00 . . . . . . . . . . .subtract 24

  x = 8 . . . . . . . . . . divide by -0.50

Tim will buy 8 bags of pretzels.

4 0
3 years ago
I am a square. One of my side is 9 feet long. What is my area?
Stella [2.4K]

Hello from MrBillDoesMath!

Answer:

81 ft^2

Discussion:

The area of a square is (length of a side)^2.  In this case,

Area = 9^2 = 81


Regards,  

MrB

P.S.  I'll be on vacation from Friday, Dec 22 to Jan 2, 2019. Have a Great New Year!


8 0
3 years ago
Three teachers share 2 packs of paper equally.
cupoosta [38]

I believe the answer is C because each teacher would get 2 packs for the three that get paper

3 0
3 years ago
Will mark brainliest, answer quick pls !!
Natasha_Volkova [10]

Answer:

X^2 + 10 + 24

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the product of the tens on 14 and 42
BartSMP [9]

Answer:

The product of the tens in these two numbers is 4

Step-by-step explanation:

TO find this, first we need to find the number in the tens place for each of them. The tens place is the second from the decimal point.

14

42

Now we take these two and multiply them together to get the product.

1 * 4 = 4

3 0
3 years ago
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