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
UkoKoshka [18]
3 years ago
11

A university wants to conduct a sample survey to determine the average number of students who earned a GPA higher than 3.5. Whic

h of the following survey methods is most likely to produce valid results?
A. The university surveys students who earned less than a 3.5 GPA.
B. The university surveys every other student who earned more than a 3.5 GPA.
C. The university surveys 600 randomly selected students who attend the university.
D. The university selects one department and surveys all of its students
Mathematics
1 answer:
tekilochka [14]3 years ago
3 0

Answer:

C. The university surveys 600 randomly selected students who attend the university.

Step-by-step explanation:

You might be interested in
The volume of a cube is 125 cubic inches. What is the length of one side of the cube? A. 5 inches B. 25 inches C. 125 inches D.
amid [387]
My answer would be B! Hope this helps
4 0
3 years ago
I have like 20 minutes please help<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D-7x%2B10%3D0" id="TexFormula1" title="x^{2}-7x+10
Mandarinka [93]

Answer: Hmm Ok i do this-

Step-by-step explanation:

Wait are we trying to find x?

Ok so for the first one x = 5 and for the second one x = 2

3 0
3 years ago
What is the most common factor between 139 and 100
posledela

Answer:

1

Step-by-step explanation:

The common factors are:

1

The Greatest Common Factor:

GCF = 1

Solution

Teh factors of 100 are:

1, 2, 4, 5, 10, 20, 25, 50, 100

Teh factors of 139 are:

1, 139

The common factors are:

1

The Greatest Common Factor:

GCF = 1

3 0
3 years ago
Read 2 more answers
Consider the function f given by f(x)=x*(e^(-x^2)) for all real numbers x.
NISA [10]

Answer:

\frac{\sqrt{\pi}}{4}

Step-by-step explanation:

You are going to integrate the following function:

g(x)=x*f(x)=x*xe^{-x^2}=x^2e^{-x^2}  (1)

furthermore, you know that:

\int_0^{\infty}e^{-x^2}=\frac{\sqrt{\pi}}{2}

lets call to this integral, the integral Io.

for a general form of I you have In:

I_n=\int_0^{\infty}x^ne^{-ax^2}dx

furthermore you use the fact that:

I_n=-\frac{\partial I_{n-2}}{\partial a}

by using this last expression in an iterative way you obtain the following:

\int_0^{\infty}x^{2s}e^{-ax^2}dx=\frac{(2s-1)!!}{2^{s+1}a^s}\sqrt{\frac{\pi}{a}} (2)

with n=2s a even number

for s=1 you have n=2, that is, the function g(x). By using the equation (2) (with a = 1) you finally obtain:

\int_0^{\infty}x^2e^{-x^2}dx=\frac{(2(1)-1)!}{2^{1+1}(1^1)}\sqrt{\pi}=\frac{\sqrt{\pi}}{4}

5 0
3 years ago
Read 2 more answers
FREE BRAINLY!!! if you answer correctly ill give you brainly :) (40pts total)
matrenka [14]

Answer:

3/-2

Step-by-step explanation:

All other answers have 2 negative signs, so they all will become positive numbers.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Find the value of x. Round to the nearest tenth. The diagram is not drawn to scale.
    6·1 answer
  • Score: 0 of 1 pt
    14·1 answer
  • 25<br> Write as a whole or mixed number in simplest form
    11·1 answer
  • How do you find the area of this
    13·1 answer
  • Find the sum of 32 2/9 + 23 4/9?
    14·2 answers
  • Lee had a total of 40 e-mails on Monday. Eight of the e-mails were from her friend Cara. What percent of the e-mails were from C
    6·2 answers
  • For accounting purposes, the value of assets (land, buildings, equipment) in a business are depreciated at a set rate per year.
    6·2 answers
  • What is the value of?<br> –4<br> –2<br> 2<br> 4
    14·2 answers
  • Need help with 17 and 18
    6·1 answer
  • Help pls with this problem
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!