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
Alex_Xolod [135]
3 years ago
12

Joe wants to find all the four-letter words that begin and end with the same letter. How many combinations of letters must he ex

amine? A word is any sequence of letters, such as MTHM, and does not have to be English.
Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
4 0
There are 17,576 combinations.

There are 26 letters to choose from for the first letter; 26 for the second letter; 26 for the third letter; and 1 for the last letter (it must be the same as the first letter).  This gives us

26*26*26*1 = 17576
You might be interested in
A) 1<br> b) -20<br> c) 20<br> d) 7
Ipatiy [6.2K]

f(x)=x^2;\ g(x)=x-3\\\\(g\ \circ\ f)(x)=(x^2)-4=x^2-3\\\\\text{Put x = -2 to the equation}\\\\(g\ \circ\ f)(-2)=(-2)^2-3=4-3=1\to\boxed{a)}

3 0
3 years ago
5x-1=15x-101 equation
sladkih [1.3K]
5x - 1 = 15x - 101
101 - 1 = 15x - 5x
100 = 10x
100/10 = x
x = 10

How this has been solved is by bringing the equations with (x) to one side and solving them and solving the other numbers on the other side..
4 0
3 years ago
Please simplify 6-(2-4x)
umka2103 [35]

I'm pretty sure the answer would be 4+4x

6 0
3 years ago
Read 2 more answers
Tristan is volunteering at the animal shelter one of his responsibilities is to give each of the 5 dogs their medicine each day
vova2212 [387]

Answer:

2.22

Step-by-step explanation:

4/9 x 5

4 0
2 years ago
A grade has 81 girls and 72 boys. the grade is split into groups that have the same ratio of girls to boys as the whole grade. h
Arturiano [62]

Answer:

<u>There are 18 girls in a group that has 16 boys.</u>

Step-by-step explanation:

1. Let's review the information given to us for solving the question:

Number of girls in the grade = 81

Number of the boys in the grade = 72

Number of students in the grade = 81 + 72 = 153

2. Let's find the number of girls in a group that has 16 boys.

For getting that number we will use the Rule of three simple, this way:

Number of girls in a group that has 16 boys = (81 * 16)/72

Number of girls in a group that has 16 boys = 1,296 / 72

<u>Number of girls in a group that has 16 boys = 18</u>

<u>There are 18 girls in a group that has 16 boys.</u>

3 0
3 years ago
Other questions:
  • The map of a biking trail is drawn on a coordinate grid. The trail starts at P(−6, 3) and goes to Q(3, 3). It goes from Q to R(3
    11·2 answers
  • How can I compare these scores?
    8·2 answers
  • My friend takes 10 cards at random from a 52-card deck, and places them in a box. Then he puts the other 42 cards in a second, i
    6·2 answers
  • Karen wants to record the change in temperature during the day what type of graph would be best to illustrate this idea a line g
    9·1 answer
  • (3ab-5a-3) - (3ab-1)
    6·1 answer
  • Write this number, 0 ones, 6 hundredths, 5 tens, 5 hundreds, 5 tenths
    9·2 answers
  • HELP MEH YOU GET 18 points!
    13·2 answers
  • Pls help me and show work
    14·1 answer
  • PLease answer !!! Find constants $A$ and $B$ such that \[\frac{x + 7}{x^2 - x - 2} = \frac{A}{x - 2} + \frac{B}{x + 1}\] for all
    15·2 answers
  • A dozen (12) donuts cost $8.40. What is the cost per donut?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!