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
Alex17521 [72]
3 years ago
9

How many 3-letter combinations can be made from this set if no letter can be repeated?

Mathematics
1 answer:
Wittaler [7]3 years ago
7 0

Answer:

B 120 different combinations

Step-by-step explanation:

There are 6 letters to choose from

Picking a letter for the first spot  6

Then there are 5 letters left

Picking a letter for the second spot  5

Then there are 4 letters left

Picking a letter for the second spot  4

6*5*4

= 120

You might be interested in
Box A contains 1 black and 3 white marbles, and box B contains 2 black and 4 white marbles. A box is selected at random, then a
Anna11 [10]

Answer: Probability that Box A was chosen given that black marble is chosen is 0.5.

Step-by-step explanation:

Since we have given that

Number of boxes = 2

In Box A,

Number of black marbles = 1

Number of white marbles = 3

In Box B,

Number of black marbles = 2

Number of white marbles = 4

Since black marble is selected.

So, using Bayes theorem , we get that

P(E_1|B)}=\dfrac{P(E_1).P(B|E_1)}{P(E_1).P(B|E_1)+P(E_2).P(E_2|B)}\\\\P(E_1|B)=\dfrac{0.5\times \dfrac{1}{3}}{0.5\dfrac{1}{3}+0.5\times \dfrac{2}{6}}\\\\P(E_1|B)}=\dfrac{0.167}{0.167+0.167}\\\\P(E_1|B)}=0.5

Hence, probability that Box A was chosen given that black marble is chosen is 0.5.

3 0
3 years ago
Write the number in standard form.<br> 7 x 107
laila [671]

Answer:

<u>749</u>

Step-by-step explanation:

Break apart the equation:

(7 x 100) + (7 x 7)

7 x 100 = 700

7 x 7 =49

700 + 49 = 749

Hope this helps

3 0
3 years ago
What is the Decimal Equivalent to 1/3?
Akimi4 [234]
0.3333333333333333333 ect.
7 0
3 years ago
The sum of a number and its square is 42. Which equation can be used to find the two numbers for which this is true?
Karolina [17]

Answer:

x^2 + x = 42

Step-by-step explanation:

Let x = the number

Is means equals and sum means add

The sum of a number and its square is 42

x + x^2 = 42

5 0
3 years ago
Read 2 more answers
I'm so lost I need help​
mario62 [17]
B is the correct answer choice,you didn’t hear it from me
6 0
3 years ago
Read 2 more answers
Other questions:
  • Planes Q and R are parallel planes. Plane Q contains line a. Plane R contains line b. If a third plane could be drawn which cont
    11·2 answers
  • The cafeteria at midtown middle school surveyed 575 students about their favorite food. Find the number of students the responde
    14·2 answers
  • The first soccer team scored 8 goals in 4 games. The second soccer team scored 27 goals in 9 games. Which soccer team scored mor
    6·2 answers
  • Seven less than the sum of p and r is as much as 6
    8·1 answer
  • Which function types can have horizontal
    11·1 answer
  • Is the area of a key on a calculator 6.5 mm^2 , 65 mm^2 or 0.65 cm^2?
    15·1 answer
  • What's 89 23 93 32 2 x 23 x 45 x 56 x 72 divided by 8
    14·1 answer
  • Pleaseeee help!!!! I will mark you as brainlinest for correct answer!!!!!!!!
    7·1 answer
  • Is this correct? Please help! It’s multi solution
    8·1 answer
  • Please help me I have to turn this in by 5:00 I will give you the brain thing and extra points. 3/5
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!