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
sergey [27]
4 years ago
11

We are setting up virtual shopping tasks on an online survey. In each shopping task, we can only show up to 20 products on the s

creen. There are 80 products in total that we want to test. How many shopping tasks do we need to show so that on average, each product is shown 3 times throughout all the shopping tasks? Assume all products are selected randomly and have an equal chance of being selected.
Mathematics
1 answer:
aleksley [76]4 years ago
7 0

Answer:

Step-by-step explanation:80divide by 20=4

4multiply by 3=12

Answere=12

You might be interested in
I NEED HELP PRONTO PLEASE
Ad libitum [116K]
Use photo math or socratic
5 0
3 years ago
For a certain​ automobile,
emmasim [6.3K]

Answer:

The answer is

a) <u>2,128 miles per gallon at 40,36 miles per hour</u>

b) <u>1,388 miles per gallon at 60 miles per hour</u>

Step-by-step explanation:

Let's find the extreme points of M(x) for 30≤x≤60. M(x) simplified by dividing to 7.8.

M(x) = -1,92.10^-3x^2+0,155x-1

To find extreme points we find tangent of M(x) and equal it to 0.

M'(x) = -3,84.10^-3x+0,155=0

therefore x=\frac{-0,155}{-3,84.10^-^3} = 40,36

This divides our x to 2 different range 30≤x≤40,36 and 40,36≤x≤60

Now we pick a number and investigate from the ranges

30≤x≤40,36   →    x = 35    →    <u>M'(35) = 0,0206</u><u> which is </u><u>> 0</u><u> and that means M is increasing</u>

40,36≤x≤60   →    x = 45   →    <u>M'(45) = -0,0178</u><u> which is </u><u>< 0 </u><u>and that means M is decreasing</u>

Next let's look at critical points

   x                  M(x)          Before              After             Decision

  30                1,922              -                       ↑             Local Minimum Point

  40,36           2,128             ↑                       ↓             Local Maximum Point

  60                1,388             ↓                       -              Local Minimum Point

As we can see (30, 1,922) and (60, 1,388) are<u> local minimum points</u> and (40,36 , 2,128) is the <u>local maximum point</u>.

Since (60 , 1,388) is the <u>lowest local minimum point</u> it is the absolute minimum point and (40,36 , 2,128) is the absolute maximum point.

6 0
3 years ago
Christopher walked 1 1/4 of a hour walking home.Alejandro walked the same distance and walked 5/6 of an hour How much longer did
charle [14.2K]

Answer:

1.04166666667

Step-by-step explanation:

5 0
4 years ago
Green, Red, Yellow, Yellow, Blue, Blue, Purple /the spinner
Greeley [361]

Answer:

green:14.28

red: 14.28

yellow: 28.56

blue: 28.56

purple:14.28

good luck! sorry if this isnt the right answer, i tried!!!

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
Find the minimum or maximum value of the function. What is the H? (Desmos)
beks73 [17]

Answer:

Minimum: (2,4)

Step-by-step explanation:

h(x)=3(x^{2}-4x)+16

=3(x^{2}-4x+4-4)+16   (- For the balance of equation, and attention 1)

=3(x-2)^{2}-3*4+16

=3(x-2)^{2}+4

<h3>Attention:</h3>

1. (a-b)^{2}=a^{2}  -2ab+b^{2}

2. The formula for the vertex form is y = a(x-h)^{2}+k, the vertex is (h,k)

4 0
3 years ago
Other questions:
  • Identify the linear function graph.<br> A) <br> B) <br> C) <br> D)
    15·2 answers
  • Help Asap It would mean alot to me<br> Heyyyy im bored
    15·2 answers
  • Find the value of b here
    5·1 answer
  • 550 is 12.5% of what number
    9·1 answer
  • How to find the vertices of the hyperbole
    9·2 answers
  • Complete the solution of the equation. Find the value of y when x equals -8.
    7·1 answer
  • 3 4 6 9 13 18 24 what is the next number
    13·1 answer
  • a discount of 15% is given on all t-shirt how much less is paid on such a T-shirt which ordinary cost $85​
    11·1 answer
  • Plaese help!!!!!!!!!! <br> what is 35 + 60?
    15·2 answers
  • An aquarium is in the shape of a rectangular prism. The area of the base of the aquarium is 250 square inches. Which is the volu
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!