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
Elis [28]
3 years ago
11

The monthly utility bills in a city are normally distributed with a mean of $100 and a standard deviation of $12. Find the proba

bility that a randomly selected utility bill is more than $120
Mathematics
1 answer:
Korolek [52]3 years ago
4 0
40% just because that the answer
You might be interested in
A bacteria culture begins with 4 bacteria which double in size every hour. How many bacteria exist in the culture after 8 hours?
Shalnov [3]

Answer:

Option C. 1,024 bacteria

Step-by-step explanation:

We are given that a bacteria culture begins with 4 bacteria which double in size every hour. And we have to find that how many bacteria exist in the culture after 8 hours;

So, Number of bacteria after one hour = 4 * 2 = 8

     Number of bacteria after two hours = 8 * 2 = 16

     Number of bacteria after three hours = 16 * 2 = 32

     Number of bacteria after four hours = 32 * 2 = 64

     Number of bacteria after five hours = 64 * 2 = 128

     Number of bacteria after six hours = 128 * 2 = 256

     Number of bacteria after seven hours = 256 * 2 = 512

     Number of bacteria after eight hours = 512 * 2 = 1,024

Therefore, 1,024 bacteria exist in the culture after 8 hours .    

7 0
3 years ago
Please help me! WILL MARK BRAINLIEST
AURORKA [14]

Answer:

r=45,041

Step-by-step explanation:

455=(94)(22)^2/r

455=(94)(484)/r

455=45,496/r

455r=45,496

r=45,041

7 0
3 years ago
Read 2 more answers
each time kim pour water from a jug into a glass, exactly 10% of the water remaining in the jug is used. What is the minimum num
Gnoma [55]

The <em><u>correct answer</u></em> is:

At least 7 times.

Explanation:

Since 10% of the water in the jug is removed each time, this means that 100-10=90% of the water remains.

After two times, we would have 0.9(0.9) = 0.81 = 81% of the water; each time she pours, the number of times 0.9 is multiplied by itself changes.  This makes this an exponential inequality (it is not an equation, as we want "less than half of the water"):

0.5 < 0.9^x

To solve this, we will use logarithms:

\log_{0.9}(0.5)

4 0
3 years ago
(-9.5) to the power of 0
lukranit [14]
Whenever it’s to the power of 0 the answer is 1 but idk if it’s negative use photomath
5 0
3 years ago
Farmer McKinney has a plot of tomato plants. There are 5 tomato plants in the first row, 6 tomato plants in the second row, 9 to
jok3333 [9.3K]
There will be 30 tomatoes in row six. Let me know if i'm right.
3 0
3 years ago
Other questions:
  • What is the x-intercept of the line with this equation 8x - 1/3y = 15?
    15·1 answer
  • I NEED HELP ASAP! THANKS :)
    9·2 answers
  • Calculus help??????
    9·1 answer
  • I’m confused on this one
    5·1 answer
  • The area in square feet of a rectangular field is x - 70x + 1200. The width, in feet, is x - 30. What is the length, in feet?
    9·1 answer
  • You flip a coin and roll a dice.
    5·1 answer
  • In the diagram, how many circles are there for each square?
    6·1 answer
  • How to write proofs in geometry
    15·1 answer
  • Complete the process of solving the equation.
    11·1 answer
  • Solve the inequality -7x &gt; 21. What is the graph of the solution?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!