1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
olya-2409 [2.1K]
3 years ago
9

In how many ways can 4 boys and 4 girls be arranged in a row such that no two boys and no two girls are next to each other?(A) 1

032(B) 1152(C) 1254(D) 1432(E) 1564
Mathematics
1 answer:
nirvana33 [79]3 years ago
4 0

Answer:

1152

Step-by-step explanation:

4 boys and 4 girls be arranged in a row such that no two boys and no two girls are next to each other.

Two boys and two girls are not next to each other. so one boy and one girl are next to each other in two ways.

BGBGBGBG, GBGBGBGB

4 boys are arranged in 4! ways and 4 girls are arranged in 4! ways

So number of ways = 2 \cdot 4! \cdot 4!=2 \cdot 24 \cdot 24=1152

You might be interested in
The two polygons above are similar. The scale factor of the smaller polygon to the larger polygon is 3. The area of the smaller
Softa [21]
You would think it was 3 * 12 = 36. Not so. All polygons have to be broken down into some figure that will give 2 dimensions that are at right angles to each other. That would mean that
d1 * d2 = Area for the small polygon
3d1 * 3d2 = area of the larger polygon

What that means is that the area of the larger one is 9 times the smaller one.
Area large = 12 * 9 = 108 square units. <<<<< answer.

If you find this hard to be leave try it with a square.
Suppose you have a square (the small one) that is 3 cm by 3 cm
The small one has an area of 3*3 cm^2 = 9 cm

Now you have another square that is 3 times larger. That means that each side is 3*3 = 9
So s = 9
Area = s^2
Area = 9^2 = 81 cm^2
81 is 9 times larger than 9 just as you would think. 


4 0
3 years ago
If i had the number 63,482 how many do i need to get to 100,000
Simora [160]
100,000 - 63,482= 36,518.
3 0
3 years ago
Read 2 more answers
Hurry if correct I will give brainly ​
kow [346]

Answer:

D

Step-by-step explanation:

A=20*20

6 0
3 years ago
A drug company is testing a new drag which is supported to reduce blood pressure. From the nine people who are used as subjects,
Pie

Answer:

The 95% confidence interval for the mean change in blood pressure, \bar{x}, is 1.744 < \bar{x} < 2.816

Step-by-step explanation:

The parameters given are;

The number of people in the sample, n = 9

The average drop in blood pressure, \bar{x} = 2.28 points

The standard deviation, σ = 0.82

The confidence level = 95%

The formula for confidence interval with a known mean is given as follows;

CI=\bar{x}\pm z_{\alpha/2} \dfrac{\sigma}{\sqrt{n}}

Where:

z_{\alpha/2} = z - score at 95% confidence level = 1.96

We therefore have;

CI=2.28 \pm 1.96 \times \dfrac{0.82}{\sqrt{9}}

Which gives the 95% confidence interval for the mean change in pressure, \bar{x}, is given as follows;

1.744 < \bar{x} < 2.816

6 0
3 years ago
A question that can be answered by collecting data that will vary. "On average, how old are the people who live in my building?"
8_murik_8 [283]
I believe that is C. Statistical question.

I know it’s not B because that has nothing so do with the question so you’re good there. While A could be a potential answer, it says a question that can be answered by collecting data, whereas the mean would actually be that data and not the question that can be answered so C would be the only choice left.
6 0
3 years ago
Other questions:
  • Who has the right to levy taxes on the income of individuals and businesses by the ruling of the 16th Amendment of the Constitut
    13·1 answer
  • What is 3 days 8 hours and 15 minutes plus 2 days 15 hours and 45 minutes?
    13·1 answer
  • when the input to a function is -2, the out put is 4. Which statement about this function must be true
    12·1 answer
  • During an experiment, a spinner landed on red 6 times. If the resulting experimental probability of the spinner landing on red i
    13·2 answers
  • Hello, could anyone help me on part A and part B
    10·1 answer
  • A circle has a diameter with endpoints A (-4,4) and B (2,-3) . Which coordinates represent the center of the circle?
    5·1 answer
  • HELP PLEASE : For numbers 3 &amp; 4, draw a triangle for each to find the missing side.
    14·2 answers
  • An airplane 30000 feet above the ground begins descending at a rate of 2000 feet per minute The best form to use is because ther
    11·1 answer
  • Can anyone solve the rest pls
    11·2 answers
  • You spin the spinner, roll a die, and find the sum. How many different sums are possible?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!