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
Sergio [31]
4 years ago
14

A u.s. social security number is a nine-digit number. the first digit(s) may be 0. how many have exactly one didgit equal to 8

Mathematics
1 answer:
strojnjashka [21]4 years ago
5 0
Think of the SS numbers as being a collection of digits.  If any of the digits (say the first one for example) are 8 then all the remaining digits can be anything but 8, meaning there are 9 choices for each remaining digit.  This effectively becomes an 8 digit number with the constraint that there can only be 9 choices for a digit.  This means for the first digit being 8 we have 9⁸ remaining possible numbers. Since we will do this for each of the remaining digits (they each get to be 8 then we count their 9⁸ configurations) we end up with 9(9⁸) or 9⁹≈3.8742E8
You might be interested in
This question is from trignometry of class 9.​
Ne4ueva [31]

Answer:

  4.2π cm ≈ 13.19 cm

Step-by-step explanation:

The length s of an arc of a circle with radius r and central angle θ (in radians) is ...

  s = rθ

Here, we have ...

  s = (5.6 cm)(3π/4) = 4.2π cm ≈ 13.19 cm

8 0
3 years ago
A community bike ride offers a short 5.7 mile ride for children and families. The short ride is followed by a long ride, 5 2/3 T
defon
First multiply 5.7 by 5 2/3 to figure out how long the adult ride is: 5.7/1 X 17/3= 32.3. Then add the adult ride and the children's ride together: 5.7+32.3=38 (7+3=10 which adds 1 to the whole number). The mom would ride 38 miles :)
3 0
4 years ago
What are the steps to 43,021 -835.6?
Kruka [31]
The answer says 42,185.4


Hope this helps!

4 0
4 years ago
Please help! Forgot to do homework and I really need help! WORTH 30 POINTS!
stepan [7]

Answer:

M=-4

A=-16

K=1

X=9

Q=-6

V=2

7 0
3 years ago
If I add a -5 to both sides of an inequality, then the inequality symbol will change direction. True or False
butalik [34]

Answer:

true

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • the Diameters of Circles A, C and E are 32cm, 24 cm and 14 cm respectively. Which of the following statements are true? Select a
    10·1 answer
  • The area of a triangle is 56.4 cm2 and the base is 12 cm.
    12·1 answer
  • Use a basic fact and a pattern to find the product 5,000 x 80
    11·1 answer
  • The white bulletin board is 5 ft. 7 in. long and the blue bulletin board is 70 in. long. Which one is longer?
    6·2 answers
  • X+9^4=[4234+56/23] x94 = ?<br><br> pelase show work
    5·1 answer
  • write the equation of a line that is parallel to y = -7/5x + 6 and that passes through the point (2, -6)
    10·1 answer
  • Given that bisects ∠CEA, which statements must be true? Select THREE options.
    6·2 answers
  • Help plssss!!!!!!! 10 points
    9·1 answer
  • Helppp me !!!!!!!<br> i’ll give brainliest !
    8·1 answer
  • A microwave is placed on top of two boxes. One box is 2 feet 9 inches tall, the other box is 4 feet 11 inches tall, and the micr
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!