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makkiz [27]
3 years ago
15

Mari has 3 friends who are available to go with her to the movies, but she only has 2 extra tickets. How many different choices

does Mari have for which 2 friends to invite?
Mathematics
1 answer:
aliina [53]3 years ago
6 0

Answer:

3 different choices

Step-by-step explanation:

This problem is a combination problem: She has 3 friends, and we want to know how many groups of 2 friends there are. We can solve this using the combination of 3 choose 2:

C(3,2) = 3!(1! * 2!) = 3*2/2 = 3 possibilities

If we call her three friends A, B and C, the groups that can be formed are:

A and B

A and C

B and C

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When 23 is subtracted from the square root of three times a number, the result is 16. find the number?
gizmo_the_mogwai [7]
(√3n)-23=16

Put all of the numbers without a variable on the right side of the equation
(√3n)=39

Simplify 
<span>1.732051n</span>=<span>39
</span>
Divide 39 by 1.732051
n=<span>22.516658

Round
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8 0
3 years ago
Use the picture below to answer the question .
Deffense [45]

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2 years ago
Evaluate <br> h(x) = 17+ x/6<br> H(-18)=
yan [13]
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7 0
3 years ago
Given the figure. Find AC.
Angelina_Jolie [31]

Image is missing, so i have attached it.

Answer:

AC = 10sin 40°

Step-by-step explanation:

From the diagram attached, using terms in trigonometric ratio, AC is the opposite side, BC is the adjacent side and AB is the hypotenuse.

Thus, since we want to find AC;

We know that in trigonometric ratios; opposite/hypotenuse = sin θ

In the diagram, θ = 40° and AB = 10

Thus,

AC/10 = sin 40°

Multiply both sides by 10 to get;

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7 0
3 years ago
Bill has these expenditures for his utilities: December,
Brrunno [24]

The average monthly expenses for Bill's utilities is $266.67.

It is given in the question that:-

Expenditure in December by Bill = $ 234.45

Expenditure in January by Bill = $ 281.23

Expenditure in February by Bill = $ 284.33

We have to find the average monthly expenses for Bill's utilities.

We know that,

Average monthly expense for utilities = (Expenditure in December + Expenditure in January + Expenditure in February)/3

Hence, using the data given in the question, we can write,

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Average monthly expense for utilities = 800.01/3 =  $266.67

To learn more about average, here:-

brainly.com/question/24057012

#SPJ1

6 0
1 year ago
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