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
borishaifa [10]
3 years ago
12

In how many ways can 7 distinct red balls and 5 distinct blue balls be placed in a row such that all red balls are adjacent,

Mathematics
1 answer:
Vesnalui [34]3 years ago
6 0
The blue can be placed before the red or the red before the blue.
7 distinct balls have a permutation of 5040 while 5 distinct balls have a permutation of 120.
Each permutation of the reds can be combined with each permutation of the blues giving 5040×120=604800.
Double this to 1209600 to allow for the two positioning for red and blue.
You might be interested in
The areas of two similar triangles are 72dm2 and 50dm2. The sum of their perimeters is 226dm. What is the perimeter of each of t
Digiron [165]

Answer:

  • 123 3/11 dm
  • 102 8/11 dm

Step-by-step explanation:

The ratio of the linear dimensions (perimeter) is the square root of the ratio of area dimensions, so the larger : smaller ratio is ...

  √(72/50) = √1.44 = 1.2

The sum of ratio units is 1.2 + 1 = 2.2, so each ratio unit stands for ...

  (226 dm)/2.2 = 102 8/11 dm . . . . . the perimeter of the smaller triangle

Then the perimeter of the larger triangle is ...

  1.2 × 102 8/11 dm = 123 3/11 dm . . . . the perimeter of the larger triangle

6 0
3 years ago
Read 2 more answers
WILL GIVE BRIANLEST PLS HELP NOW
gavmur [86]
10. 48
11. negative 16
6 0
3 years ago
A jar has 5 red marbles, 3 blue marbles, and 2 green marbles. what is the probability that you would choose a red marble, return
denis23 [38]

Answer:

In Fraction  = 10/100  simplified =  1/10

Decimal = 0.1

Percentage = 10%

Step-by-step explanation:

We add all marbles = 5+ 3+ 2 = 10

Event 1 = Red  = 5/10

Event 2 = Green = 2/10

We follow this path and multiply =  2 x 5 /  10 x 10 =  10/100 = 1/10

5 0
3 years ago
Lila is making a spinner game for her cousins to play she has divided it into 8 equal sections
eimsori [14]

Using the probability concept, it is found that:

  • a) P(star) = 3/8 = 0.375 = 37.5%.
  • b) P(not diamond) = 7/8 = 0.875 = 87.5%.
  • c) P(flower) = 1/4 = 0.25 = 25%.
  • d) You would expect to spin a heart 25 times.

------------------------------------------------

  • A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.

Item a:

  • Of the 8 sections, 3 are stars.
  • \frac{3}{8} = 0.375

Then:

P(star) = 3/8 = 0.375 = 37.5%.

Item b:

  • Of the 8 sections, 7 are not diamonds.
  • \frac{7}{8} = 0.875

Then:

P(not diamond) = 7/8 = 0.875 = 87.5%.

Item c:

  • Of the 8 sections, 2 are flowers.
  • \frac{2}{8} = \frac{1}{4} = 0.25

Then:

P(flower) = 1/4 = 0.25 = 25%.

Item d:

  • 2 out of the 8 sections are hearts, then:

p = \frac{2}{8} = \frac{1}{4}

Out of 100:

\frac{1}{4} \times 100 = \frac{100}{4} = 25

You would expect to spin a heart 25 times.

A similar problem is given at brainly.com/question/16256175

7 0
2 years ago
The data set below has an outlier.
Tems11 [23]
If we remove the 2.  The others will stay the same (roughly might move by 1) EXCEPT the range.  Which will drop from 12 to 4
5 0
3 years ago
Read 2 more answers
Other questions:
  • Find the equation of the line parallel to y=2x+1 that contains point (14,3)
    7·1 answer
  • If anyone figures this out they get 65 points and brainlist!
    14·1 answer
  • Answer all please ❤️
    13·2 answers
  • Helpppp I have 5 minutes left
    14·1 answer
  • If you flip two coins 16 times, what is the best prediction possible for the number of times both coins will land on tails?
    7·1 answer
  • Find several points that are on the graph of the function y = x^2 + 1. Plot the points in a coordinate plane.
    13·1 answer
  • I need help...WILL GIVE BRAINLIEST !!!!!
    11·1 answer
  • Find the remainder help please
    14·1 answer
  • What is the domain of the relation below?
    11·2 answers
  • Directions: Decide which measurement is larger, by converting to the same measurement.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!