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DochEvi [55]
2 years ago
15

9. If the area of a square is given by the polynomial 4x2 – 36x + 81, then which of the following expressions represents the len

gth of one side of the square?
A 2x - 9
B 2x + 9
C 4x - 18
D 4x + 18
Mathematics
1 answer:
Otrada [13]2 years ago
7 0

Answer:

it is b

Step-by-step explanation:

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Common factors of 12 and 18​
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Answer:

2,4,6,1,3

Step-by-step explanation:

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Write the equation of a circle with center (6,4) that passes through the coordinate (2,1). In your final answer, include all of
kari74 [83]
R^2=(x-6)^2+(y-4)^2

r^2=(6-2)^2+(4-1)^2, r^2=16+9=25

(x-6)^2+(y-4)^2=25
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3 years ago
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A 3
Andrew [12]

Answer:

There are (63) combinations. The notation means "six choose three". Out of six items (flavors) choose three.

(nk)=n!k!(n−k)!.

(63)=6!3!3!.

Think of it this way. There are 6 ways to choose a flavor. Once you choose, there are 5 ways to choose the next. After that, there are 4 flavors left. which is 6!/3!=6⋅5⋅4⋅3⋅2⋅13⋅2⋅1=6⋅5⋅4=120.

But, you could have chosen {chocolate,vanilla,strawberry} and you get the same combination as {vanilla, strawberry, chocolate} so we have to divide by 3!=3⋅2⋅1=6 to account for the order of choosing.

So the number of combinations of flavors is (63)=1206=20.

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7 0
2 years ago
B+10+15<br> What’s the answer
avanturin [10]

Answer:

25b?

Step-by-step explanation:

7 0
2 years ago
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Gustav needed to bake at least 252 cookies for the luncheon. He baked 8 batches of peanut butter cookies with 12 cookies in each
spin [16.1K]

Answer:

He made 10.4 batches of chocalate chip cookies.

He made 156 chocalate chip cookies and 96 peanut butter cookies.

Step-by-step explanation:

Sense there's a total of 252 cookies you would subtract the 96 cookies from 252 to get 156 then divide it by 15 to get 10.4 which is how much batches he made of chocalate chip cookies.

Tasty!    

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