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3 years ago

I will pay pale you and mark as Brainiest if answer is correct.

Mathematics

2 answers:

Arisa [49]3 years ago

3 0

Answer:

I think the answer is B??

evablogger [386]3 years ago

3 0

Answer:

C. the point (2,60) shows that the cost is $60 for 2 kg

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What is 3 / 100 of percentage

FromTheMoon [43]

3%.... make any fraction over 100 to make percent. This is akready over 100

5 0

3 years ago

A home owner wants to purchase two different chairs for the living room, one for in front of the fire place and one for in front

Ipatiy [6.2K]

Using the combination formula, it is found that photos of 9 different chairs were shown to the home owner.

The order in which the chairs are chosen is important, hence, the <em>permutation formula </em>is used to solve this question.

<h3>What is the permutation formula?</h3>

$P_{n,x}$ is the number of different permutations of x objects from a set of n elements, given by:

$P_{n,x} = \frac{n!}{(n-x)!}$

In this problem, two chairs are chosen from a set of n, and there are 72 different outcomes, hence:

$P_{n,x} = 72, x = 2$

$P_{n,x} = \frac{n!}{(n-x)!}$

$72 = \frac{n!}{(n-2)!}$

$72 = \frac{n(n - 1)(n - 2)!}{(n-2)!}$

$n^2 - n = 72$

$n^2 - n - 72 = 0$

Which is a quadratic function with coefficients $a = 1, b = -1, c = -72$ , hence:

$\Delta = b^2 - 4ac = (-1)^2 - 4(1)(-72) = 289$

Taking the positive root:

$x_1 = \frac{-b + \sqrt{\Delta}}{2a} = \frac{1 + \sqrt{289}}{2} = 9$

Photos of 9 different chairs were shown to the home owner.

You can learn more about the permutation formula at brainly.com/question/25925367

3 0

2 years ago

Please help with these three questions and thank you

Advocard [28]

1.A

2.D

3.B

Step-by-step explanation:

Have a nice day!

6 0

3 years ago

Read 2 more answers

Describe how you would graph a figure that is translated by (x - 4, y + 2

Tasya [4]

Answer:

See the photo to see where its graphed

Step-by-step explanation:

5 0

3 years ago

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Monica is completing an Algebra test worth 100 points. There are 14 questions on the test that are equally valued. How many poin

Usimov [2.4K]

Answer:

7.1 points

Step-by-step explanation:

100/14=7.1 points

3 0

3 years ago