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
anzhelika [568]
3 years ago
11

You pick 7 digits (0-9) at random without replacement, and write them in the order picked. What is the probability that you have

written the first 7 digits of your phone number
Mathematics
1 answer:
Pie3 years ago
7 0

Answer:

= .0000001

Step-by-step explanation:

The odds of getting 1 number of out the 10 possible number (0-9) equal 10 is 1/10

There are 7 numbers to pick

P(xxx-xxxx) = 1/10 * 1/10 *1/10 * 1/10 * 1/10 * 1/10 *1/10

                 = .0000001

You might be interested in
X^2-7x=0 solve the equation​
inn [45]

Answer:

x = 0, 7

Step-by-step explanation:

Step 1: Write out equation

x² - 7x = 0

Step 2: Factor out <em>x</em>

x(x - 7) = 0

Step 3: Find roots

x = 0

x - 7 = 0

x = 7

6 0
3 years ago
Read 2 more answers
Simplify this algbraic expression completely 5y-3(y+2)
Sophie [7]

Answer:

2y - 6

Step-by-step explanation:

5y - 3(y + 2)

distribute

5y + (-3 * y) + (-3 * 2)

simplify

5y -3y + ( -3 * 2)

5y - 3y + ( -6)

5y - 3y - 6

combine like terms

5-3 = 2

2y - 6

3 0
3 years ago
PART B
Anastasy [175]

Answer: quit

Step-by-step explanation:

8 0
3 years ago
During the period from 1790 to 1930, the US population P(t) (t in years) grew from 3.9 million to 123.2 million. Throughout this
alex41 [277]

Answer:

Step-by-step explanation:

Given that during  the period from 1790 to 1930, the US population P(t) (t in years) grew from 3.9 million to 123.2 million. Throughout this period, P(t) remained close to the solution of the initial value problem.

\frac{dP}{dt} =0.03135P =0.0001489P^2, P(0) = 3.9

a) 1930 population is the population at time t = 40 years taking base year as 40

We can solve the differential equation using separation of variables

\frac{dP}{0.03135P – 0.0001489P^2 } =dt\\\frac{dP}{-P(0.03135 – 0.0001489P } =dt

Resolve into partial fractions

\frac{31.8979}{P} -\frac{0.00474}{0.0001489P-0.03135}

Integrate to get

ln P -0.00474/0.0001489  (ln (0.0001489P-0.03135) = t+C

ln P -31.833  (ln (0.0001489P-0.03135) =t+C

\frac{P}{( ( (0.0001489P-0.03135)^{31.833}  } =Ae^t

Limiting population would be infinity.

6 0
4 years ago
1b. b. At midnight the temperature is -7°C. At midday the temperature is 4°C. By how much did the temperature rise? * 1 point Yo
ElenaW [278]

Answer:

Rise = 11^\circ C

Step-by-step explanation:

Given

Midnight \to -7^\circ C

Midday \to 4^\circ C

Required

The temperature rise

This is the difference between the final and the initial temperature

Rise = Midday - Midnight

Rise = 4^\circ C - -7^\circ C

Rise = 4^\circ C +7^\circ C

Rise = 11^\circ C

8 0
3 years ago
Other questions:
  • Need help please can you give answer with working out i can not answer as it is quite gard
    10·1 answer
  • How are bar graphs and histograms different?
    6·1 answer
  • Solve for b in the literal equation y = 11x + 11b
    15·2 answers
  • Which expression shows the prime factorization of 40?
    14·2 answers
  • Josh drove 605 miles in 11 hours. At the same rate, how long would it take him to drive 385 miles?
    11·1 answer
  • Explain how to subtract two integers in your own words
    13·1 answer
  • How many equal line segments are needed to make a line of 30 triangles
    7·1 answer
  • I NEED HELP NOW PLEASE
    13·1 answer
  • Plssss help If you help me I will thank you plsssss I’m New I need help pls Merry Christmas
    14·1 answer
  • Anyone want a BRAINLIEST, 60 POINTS?!?!? THEN PLZ HELP ME FIRST CORRECT ANSWER GETS BRAINLIEST
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!