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
Maslowich
3 years ago
9

In 1912, the U.S. government began issuing licenses to radio stations. Each station was given a unique three-letter call sign. R

adio stations in the western United States were given call signs starting with K. Stations in the east were given call signs starting with W. For example, the radio station with the call sign ABC is KABC in California, and WABC in Georgia.
a. How many different three-letter call signs are there?

Hint: don’t worry about the K or W – just find the number of ways to arrange any 3 letters



b. How many different three-letter call signs are there where the first letter is a D?

Hint: again, the K and W don’t matter



c. In a random selection of radio station call signs, what is the probability of selecting a radio station with a call sign that starts with the letter D?
Mathematics
1 answer:
tatuchka [14]3 years ago
6 0

Answer:

A would make sense

Step-by-step explanation:

You might be interested in
Shelby is creating a budget for the week. At her job she earns $15.50 per hour. Her rent cost $300. Shelby wants to have at leas
netineya [11]

Answer:

15.5x - 300 >= 280

Step-by-step explanation:

Let x = the number of hours she works.

The amount of money she earns will be 15.50x

Her rent costs $300, so that value gets subtracted from the amount she earns. That makes our expression for how much money she earns:

15.5x - 300

This amount has to be over 280, so our inequality will be:

15.5x - 300 >= 280

8 0
3 years ago
I need help with this
mojhsa [17]

Answer:

prop they're constant inchangeb

Step-by-step explanation:

7 0
2 years ago
What is the value of y?
Romashka [77]

Answer:

y=42

Step-by-step explanation:

y+48+90=180

y=180-138

y=42

7 0
3 years ago
Please put the explanation!
BaLLatris [955]

Answer:

60

Step-by-step explanation:

In order to get this answer, we must know that a triangle's angles add up to exactly 180. Also, Angles that intersect will have congruent, opposite sides. The last thing is that a line is = 180 degrees. So, the triangle with the 94 and the 142, you can use that. the angle next to the 142 is going to be 180-142 which is 38 and since the other angle is opposite 94, as well. when you add those up u get 132 and 180-132= 48 which is the missing angle for the far right triangle. then, you get the opposite of that angle, put that in the other triangle, do the same with the 72, and add those up to get 120 and since a triagle adds up to 180, 180-120 = 60. So, 60 is your missing angle. Cheers

5 0
3 years ago
Ms. Carey is planning to host a neighborhood picnic. To make sure she had enough ingredients, she was making a table of possible
Anna71 [15]

Answer:

558

Step-by-step explanation:

I can't say :>

3 0
3 years ago
Other questions:
  • A car uses 1 9/8 of gasoline to travel 50 3/4. how far can the car travel in miles on 1 gallon of gasoline
    8·1 answer
  • Two sides of a triangle have lengths 7 and 16. What must be true about the length of the third side
    7·1 answer
  • Please help! I really need help!
    5·2 answers
  • If a rectangle is 12 meters with a width of 400 centimeters what is the perimeter
    15·2 answers
  • The Wilsons have triplets and another child who is ten years old. The sum of the ages of their children is 37. How old are the t
    11·2 answers
  • PLEASE HELP! I've reposted this soooo many times and no one answered, I WILL GIVE BRAINLIEST!​
    6·2 answers
  • I'll give you the brainliest
    13·2 answers
  • 5th grade math. correct answer will be marked brainliest.
    10·1 answer
  • Math grade 9 ,I need the answer fassstt
    12·2 answers
  • Help please, solve prob in the picture
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!