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BabaBlast [244]
2 years ago
8

nine people are to be distributed among three committees of two, three, four members and a chairperson is to be selected for eac

h. How many ways can this be done? a) select the chair of the two-person committee b) select the chair of the three- person committee c) select the chair of the four- person committee
Mathematics
1 answer:
Sonja [21]2 years ago
8 0

b is the answer to your promblem

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1. Write an expression for the operation described below.<br> w minus 3
pentagon [3]

Answer:

w-3

Step-by-step explanation:

Do I really have to explain this??

4 0
3 years ago
X²+8x-84=0 <br><br>Formúla General ​
Brums [2.3K]

Answer:

                x_{1} =-14\\\\x_{2} =6

Step-by-step explanation:

x^{2} +8x-84=0\\\\x=\dfrac{-b \pm \sqrt{b^{2}-4ac } }{2a} \\\\a=1; \: \: b=8; \: \: c=-84\\\\x=\dfrac{-8 \pm \sqrt{8^{2}-4 \cdot 1 \cdot (-84) } }{2 \cdot 1}=\dfrac{-8 \pm \sqrt{400 } }{2}=\dfrac{-8 \pm20}{2} =-4 \pm 10\\\\x_{1} =-14\\\\x_{2} =6

8 0
3 years ago
Solve the system using elimination. ''x-3y=9 and -x+3y=-9
DiKsa [7]

Answer:

Infinitely many solutions.

Step-by-step explanation:

Let's solve your system by elimination.

x−3y=9;−x+3y=−9

x−3y=9

−x+3y=−9

Add these equations to eliminate x:

0=0

<u>Answer:</u>

Infinitely many solutions.

6 0
2 years ago
A manufacturer of bicycles has determined that 550 bikes per month will be sold at a price of $250. At a price of $150, it is es
iogann1982 [59]

750 bikes would be sold for $350

Let x represent the number of bikes sold per month and y represent the price.

550 bikes are sold at a price of $250, this can be represented by (550, 250). Also, 750 bikes is sold at a price of $150, hence it is represented by (750, 150)

A linear function is represented by:

y = mx + b

m is the slope, b is the y intercept.

Therefore the function is:

y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\\\y-250=\frac{150-250}{750-550}  (x-550)\\\\y=\frac{1}{2}x-25

The number of bikes sold for $350 is:

350 = (1/2)x - 25

x = 750

Therefore 750 bikes would be sold for $350

Find out more at: brainly.com/question/13911928

3 0
2 years ago
How do I graph f(x) = -x^2 +2x -4
tangare [24]
This is how you would graph it :

8 0
2 years ago
Read 2 more answers
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