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Lena [83]
3 years ago
14

A group of 10 people is choosing a chairperson and vice-chairperson. They put all 10 people's names into a hat. The first name d

rawn becomes chair. The second name drawn becomes vice-chair. How many possible combinations of chair and vice-chair are there?
Mathematics
2 answers:
ollegr [7]3 years ago
4 0

Answer: 100

Step-by-step explanation:

10 people

2 chairs 1 chair 1 vice chair

10*10=100 different combinations

likoan [24]3 years ago
3 0

Answer:

45

Step-by-step explanation:

_{10} C_{2} = (10!) ÷(8!) (10-8)!

(10 × 9)÷2 = 45

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study the diagram of circle K where JL and LM are tangent to circle K at points J and M respectively. Also JL=3x+10 and ML =7x-6
Verdich [7]

Answer:

22

Step-by-step explanation:

The answer is 22. You solve the equation 3x+10=7x-6 like so

3x+10=7x-6

-3     = -3

    10= 4x-6

   +6         +6

     16=4x

      x=4

You then plug in the value of x to the equation for LM.

7x-6 becomes 7*4-6 which is 22.

7 0
4 years ago
Which of the following is a solution to the equation x + 16 = -14?
IRINA_888 [86]

Answer:

x = -30

Step-by-step explanation:

<u>Step 1:  Subtract 16 from both sides</u>

x + 16 = -14

x + 16 - 16 = -14 - 16

<em>x = -30</em>

<em />

Answer:  x = -30

7 0
4 years ago
Read 2 more answers
During the Middle Ages, noblewomen had:&lt;br /&gt;
aalyn [17]
The answer is definitely not C.  I believe the answer is D because the women worked the manor, took care of children and had no opportunity to learn how to read or write because they had no time to learn. Hope this helped you!
6 0
3 years ago
Read 2 more answers
Rewrite the expression with rational exponents as a radical expression.
CaHeK987 [17]

Answer:

7\sqrt[3]{x^2}

Step-by-step explanation:

The rule of exponents that dictates this to be solved is:

x^{\frac{a}{b}}=\sqrt[b]{x^a}

The power of 2/3 is on "x", NOT 7, so we use this property to write it as:

x^{\frac{a}{b}}=\sqrt[b]{x^a} \\7x^{\frac{2}{3}}=7\sqrt[3]{x^2}

third answer choice is right,  7\sqrt[3]{x^2}

6 0
3 years ago
Read 2 more answers
What is bigger 0.075 or 0.75 and why
hodyreva [135]

Answer:

0.75

the reason is because if we round it to the nearest tenth . 0.75 becomes 0.8. and 0.075 becomes 0.1 .  0.8 is 8/10th of 1. 0.1 is 1/10th of 1. therefor 0.8 is bigger

6 0
4 years ago
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