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1 year ago

Please help! will mark brainly

Mathematics

1 answer:

scoray [572]1 year ago

6 0

Answer:

Center:(2,1)

Radius:3

Step-by-step explanation:

This is an equation of a circle.

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In how many ways can we choose a 12 member jury from 30 possible people?

Pachacha [2.7K]

This is a problem dealing with permutations and combinations.
Order does not matter in this problem.
Since order doesn't matter, it is a combination.
Repetition matters, since you can't have the same person count as two people.

There are twelve slots.

_ _ _ _ _ _ _ _ _ _ _ _

Each slot needs to be multiplied by the next.

_*_*_*_*_*_*_*_*_*_*_*_

Now we have to fill in the slots.
Each slot will be filled with a number one less than the one before it. It has to be one less, since repetition matters.
The numbers will be decreasing from 30, since there are 30 possible people.

30 * 29 * 28 * 27 * 26 * 25 * 24 * 23 * 22 * 21 * 20 * 19

Multiply these numbers together and you get your answer.

41,430,393,164,160,000 ways

3 0

2 years ago

picture included , please help, which of the following equations describe the line shown below (1,10) and (-3,2) *check all that

rosijanka [135]

Slope is $\text{m}=\frac{y_1-y_2}{x_1-x_2}=\cfrac{10-2}{1-(-3)}$
Then you use the equation
$\text{y=mx+b}$
Where b is the y-intercept. To find it, plug in x and y from one of the points. Say, point 1 (1,10):
$10=m(1)+b$
You know m (from above) and now you can solve for b.

Rearrange terms:
$y-b=mx$

And that will be the answer.

Make sense?

4 0

3 years ago

Read 2 more answers

1/2(x + 1)²- 3

Ierofanga [76]

Answer:

a = 1/2
h = -1
k = -3

Step-by-step explanation:

We assume you want to compare your expression to the form ...

a(x -h)² +k

1/2(x +1)² +k

The multiplier outside parentheses is ...

a = 1/2

The horizontal offset inside parentheses is ...

-h = 1

h = -1

The vertical offset outside parentheses is ...

k = -3

4 0

2 years ago

Most of the People in the middle east are Muslim and speak Arabic. Which of the following does this explain?

Alenkinab [10]

a is the answerStep-by-step explanation:

3 0

2 years ago

Read 2 more answers

I need to find the product help

Licemer1 [7]

I'm assuming you mean

$2\times\frac{17}{10}$

Write the 2 as a fraction 2/1 and multiply.

$\frac{2}{1}\times\frac{17}{10}=\frac{34}{10}=\frac{17}{5}$

7 0

2 years ago