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
ValentinkaMS [17]
3 years ago
11

A sample of n = 25 observations from a normal population is drawn. the population mean is 100 and the population (known) standar

d deviation is 20. find the probability that the sample mean is greater than 95.
Mathematics
1 answer:
Oliga [24]3 years ago
7 0
The answer I think is D.
You might be interested in
How can you tell that a fraction is a unit fraction
a_sh-v [17]
You can tell that a fraction is a unit fraction when it is over a unit of one. This is also known as unit rate.
6 0
3 years ago
Read 2 more answers
A point is rotating with uniform circular motion on a circle of radius r. Find ω if
Novosadov [1.4K]

Answer:

w = 0.333

Step-by-step explanation:

In circular motion you have:

v = wr

replacing:

3 = 9w

0.333 = w

4 0
3 years ago
8. Write one equation that is equivalent to the equation 4x + y = 8.
bezimeni [28]

Given the following equation

4x+y=8

We want to write an equivalent equation. When you do the same operation on both sides of an equation, the equal sign stays valid. Let's say we multiply both sides by two

2\cdot(4x+y)=2\cdot(8)\Rightarrow8x+2y=16

This equation is equivalent to the first one. Instead, we could've add three to both sides and then subtract 'y' from both sides.

4x+y+3-y=8+3-y\Rightarrow4x+3=11-y

And all of those equations are equivalent.

4x+y=8\Leftrightarrow8x+2y=16\Leftrightarrow4x+3=11-y

8 0
2 years ago
2х – у = 7<br>3х + y = 3​
Leokris [45]

Answer:

x = 2

y = -3

Step-by-step explanation:

Solve by substitution:

2x - y = 7

Move the 2x to the other side: -y = 7 - 2x

Divide by -1: y = -7 + 2x

Take the other equation: 3x + y = 3

Substitute y in: 3x + (-7 + 2x) = 3

Take out the parenthesis: 3x - 7 + 2x = 3

Move -7 to the other side: 3x + 2x = 3 + 7

Simplify: 5x = 10

x = 2

Take the first equation: 2x - y = 7

Substitute x back in: 2(2) - y = 7

Simplify: 4 - y = 7

-y = 3

y = -3

4 0
3 years ago
Read 2 more answers
Margie is planning a dinner banquet. The equation
Komok [63]

Answer:

the x is the independent variable so the guests the y is the dependent variable so the cost.

Step-by-step explanation:

because so when there are 100 people there is 4,200 +750 and the cost is 4,950

8 0
3 years ago
Other questions:
  • Need help with this one, no clue how to solve this. If someone could explain what's going on like I'm 5 it'd be much appreciated
    10·1 answer
  • Which equation will solve the following word problem? News Center 13 has just released tomorrow's weather forecast. The high tem
    7·1 answer
  • Q8 Q17.) Find the numbers.
    8·2 answers
  • Find the length of the diameter of a sphere with a volume of 523.6 km^3.
    15·1 answer
  • 2(x + 1) + 1 = 1 - 2(x - 7)​
    10·2 answers
  • If x = 15 units, y = 18 units, z = 9 units, and h = 12 units, then what is the surface area of the triangular prism shown above?
    8·2 answers
  • Brainliest?<br> YES brainliest! <br>Give me the answer in minutes and you get it.
    13·2 answers
  • !! Plss help me!! ASAP!! <br><br> Solve the problem in the picture <br><br> Plss help me
    6·1 answer
  • Write the number below in expanded form without zeros 5.02
    10·1 answer
  • (x,y) —&gt; (y,x)<br> I can’t do this one
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!