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Tanya [424]
3 years ago
12

in how many ways can a family of four be seated at a round table if two brothers must sit together a)1 b)8 c)2 d)4​

Mathematics
1 answer:
Contact [7]3 years ago
3 0

Answer:

8

Step-by-step explanation:

i think this is right     if not it would be 2

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What is the solution to the system of equations? -2x + y = -5 3x – 2y = 12 A) (3, 1) B) (6, 3) C) (-2, -9) D) (-2, -1)
max2010maxim [7]

Answer:

The correct answer is D) (-2, -1)

Step-by-step explanation:

In order to solve this system of equations, start by multiplying the entire first equation by 2. Then add the two equations together. This will get the y's to cancel and allow you to solve for x.

-4x + 2y = -10

3x - 2y = 12

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

-x = 2

x = -2

Now that we have the value for x, we can find y by plugging the x value into either equation.

-2x + y = -5

-2(2) + y = -5

-4 + y = -5

y = -1

6 0
2 years ago
A function follows the rule y = -75 - 5x. When the function's output is 25, the equation is 25 = -75 - 5x.
brilliants [131]

Answer:

x = 20

Step-by-step explanation:

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7 0
3 years ago
Which equation using x to represent time best represents the floor number of an elevator descending at a steady rate?
zepelin [54]
C. You'd be starting at a higher floor (positive number) and descending floors (negative number per x). If you assume x is time it's a little more logical and visual. 
5 0
3 years ago
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Mary Stahley invested $2500 in a 36-month certifi- cate of deposit (CD) that earned 8.5% annual simple interest. When the CD mat
nata0808 [166]

9514 1404 393

Answer:

  $13,916.24

Step-by-step explanation:

First, we need to find the value of the CD at maturity.

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  A = $2500(1 +0.085·3) = $2500×1.255 = $3137.50

__

Now, we can find the value of the account with compound interest.

  A = P(1 +r)^t . . . . . rate r compounded annually for t years

  A = $3137.50 × 1.18^9 = $13,916.24

The mutual fund was worth $13,916.24 after 9 years.

3 0
2 years ago
Given the following functions f(x) and g(x), solve f[g(6)] and select the correct answer below:
igomit [66]
B. 0

G(6)= 6 - 8 = -2

F(-2) = 6(-2) + 12 = 0
6 0
3 years ago
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