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
Dmitrij [34]
3 years ago
13

Suppose the life of a particular brand of calculator battery is approximately normally distributed with a mean of 75 hours and a

standard deviation of 10 hours. If the manufacturer of the battery is able to reduce the standard deviation of battery life from 10 to 9 hours, what would be the probability that 16 batteries randomly sampled from the population will have a sample mean life of between 70 and 80 hours
Mathematics
1 answer:
Orlov [11]3 years ago
3 0

Answer:

idek

Step-by-step explanation:

You might be interested in
Betty's grade in science class is affected by the number of missing assignments. The table below shows the science grade percent
Angelina_Jolie [31]

Hi!

y=-5x+95

<em>Plug in </em>15 for x

y=-5(15)+95

<em>Multiply </em>-5 <em>and </em>15

y=-75+95

<em>Add </em>-75 <em>and </em>95

y =15

-------------------------------------------------------------------------------------------------------------

Betty's percentage is 15%.

The rate of change is the amount it changes for every missing assignment, therefore it would be -5.

5 0
3 years ago
Function P is represented as y = 1 2 x + 4 . Function Q is graphed. Which statement is correct? The slope of function Q is 1 2 t
vivado [14]

Answer:

jjj

Step-by-step explanation:

uidjfhthbtjdihiff

4 0
3 years ago
ryan is performing data entry for an insurance company by taking handwritten records and entering them into the database. Thus f
aleksklad [387]
No idea no idea no idea
7 0
3 years ago
Read 2 more answers
Hi how are you guys 0-0
Mila [183]

Answer:

Im doing quite ok.

Step-by-step explanation:

How have you been?

3 0
3 years ago
Read 2 more answers
Im in need of a big brain
stiv31 [10]

Answer:

x = 34

Step-by-step explanation:

If it is bisected, that means the angles are equal <ABD = < CBD

The triangles are equal by SAS

That means AD = CD

2x+30 = 3x-4

subtract 2x from each side

2x+30 -2x = 3x-4 -2x

30 = x-4

Add 4 to each side

3x+4 = x-4+4

34 =x

8 0
2 years ago
Other questions:
  • I was in special ed I I don't understand this
    10·1 answer
  • 3. A copy machine makes 60 copies per minute. A second
    7·1 answer
  • Determine the y-intercept and slope and then write the equation for this table.*​
    15·1 answer
  • Ax^2+bx+c=0, where a,b,and c are rational numbers and the quadratic has two distinct zeros
    9·1 answer
  • Please help! i do not understand !
    14·2 answers
  • A roller coaster at a theme park takes fans on an exciting ride. In the first 20 seconds, it carries passengers up a 30-meter hi
    5·1 answer
  • Explain the difference between an equation and an inequality. Write at least two of each, one of the form px+q and one of the fo
    13·1 answer
  • A submarine 50.2 m below the surface of the ocean
    6·1 answer
  • HURRY UP I AM DIENG I WILL GIVE BRAINLIESTThe area of the parallelogram below is ____ square meters.
    8·2 answers
  • Expression that is equivalent to 27e+24
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!