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
Gnoma [55]
2 years ago
8

Find the number of ways you can arrange (a) all of the letters and (b) two is the letters in the word ROCK. a. The number of way

s you can arrange all of the letters in the word is __. b. The number of ways you can arrange two of the letters in the word is __.
Mathematics
1 answer:
QveST [7]2 years ago
3 0

Answer:

a) 24

b) 12

Step-by-step explanation:

a) For the 4 letters of the word ROCK

Selecting any first letter, we have 4 options

for the second, we have 3 options

for the third we have 2 options

for the fourth, we have only one option

So the number of ways will be ;

4 * 3 * 2 * 1 = 24 ways

b) 2 out of 4

For the first letter, we have 4 options, for the second, we have 3 options

so the number of options is 4 * 3 = 12 options

You might be interested in
Number of whole numbers between 45 and 69 is _________ .<br> (a) 31 (b) 23 (c) 25 (d) 28
tatiyna

The number of whole number is 23 through subtracting the numbers. hope it helps ☺️

8 0
3 years ago
Read 2 more answers
Which goes in which order
velikii [3]

4 x  (3+6) = 12 + 24 ---->Distributive

3 + ( 8 + 2) = 3 + (2 + 8) ---> Commutative

6 x (7 x 3 ) = (6 x 7 ) x 3 --->Associative

8 0
3 years ago
Read 2 more answers
Your friend claims that it is possible to draw a right triangle where the cosine of either angle (theta) is exactly the same val
avanturin [10]

Answer:

B. No

Cos \ \theta\neq Cos (90-\theta)\textdegree

Step-by-step explanation:

-A right angle triangle has two complimentary acute angles and one right angle.

-\theta is usually one of the acute angles and is equivalent to 90º minus it's complimentary acute angle.

-Complimentary angles add up to 90º.

#For complimentary angles:

Sin \ \theta=Cos \ (90-\theta)\textdegree\\\\Cos \ \theta=Sin(90-\theta)\textdegree\\\\\therefore Cos \ \theta\neq Cos (90-\theta)\textdegree

The two acute angles cannot have the same Cosine value.

Hence, she's not correct.

5 0
3 years ago
Two students Are reading a novel Ashley read 10 pages per day Carly reads eight pages per day but she starts early and is alread
iren [92.7K]

Answer:

  • P = 10D
  • P = 8D +40

Step-by-step explanation:

Ashley's page count is ...

  P = 10D

Carly's page count is ...

  P = 8D +40

_____

The page count is the product of the pages per day and the number of days. Since Carly started with a page count of 40, that is added to the product.

4 0
3 years ago
What is the solution to -2x+y=8 and -3x-y=7 ​
photoshop1234 [79]
(12,34 please give me brainlyist
6 0
2 years ago
Read 2 more answers
Other questions:
  • (Help...............)
    12·1 answer
  • What is the answer to -28 + 38
    5·1 answer
  • Partition the interval [0,2] into 4 subintervals
    8·1 answer
  • An item cost $500 before tax,and the sales tax is $45 ..find the sales tax rate write in percentage
    7·1 answer
  • Emily designed a robot that could climb down steps. She drew a graph to show the results from a test of her new robot. The graph
    15·1 answer
  • Help on this one also please?!?
    11·1 answer
  • Solve by using elimination. Express your answer as an ordered pair.
    7·1 answer
  • Three times a number, less 4 is<br> 2
    14·1 answer
  • PLEASE HELPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    9·1 answer
  • Helppp ASAP. Emma wants to enlarge a square photo and print it to a square canvas. The side
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!