In your current location, the weather is much like this

The access code for a card security system consist of four digits the first digit cannot be 4 and the last digit must be odd. Ho

Deffense [45]

Different codes for access code which are available are: 4000

_ _ _ _

1 2 3 4

1st blank can be filled with the following possibilities, here the conditions are:

1)The first digit cannot be 4

2)The first digit cannot be 0 also since it makes the access code 3 digits hence

From 1 to 9 except 4 there are 8 possible ways to fill that blank

8

2nd blank can be filled with any number between 0 to 9 in 10 possible ways

8 10

3rd blank can be filled with any number between 0 to 9 in 10 possible ways

8 10 10

4th blank can be filled with any odd numbers between 0 to 10 - 1,3,5,7,9

8 10 10 5 = 8 x 10 x 10 x 5 = 4000

Hence to conclude that 4000 available codes are there for the access security card

To know more about permutations and combinations please follow this link

brainly.com/question/1216161

5 0

9 months ago

Use the drop-down menus to indicate whether each research question is too broad, too narrow, or effective. What will the economy

lapo4ka [179]

1. Too broad: what will the economy be like in the future?

2. Effective: how can virtual reality (VR) be used in health care?

3. Too narrow: how many gallons of water will we use in 2025?

4. Effective: what are the best strategies for increasing food production in the future?

A research question can be defined as a specific inquiry (question) that a research work seeks to provide an answer or response to, especially by using scientific methods such as the following:

Collection of data.

Analysis of data.

Documenting critical information.

Establishment of facts.

According to their nature, a research question is broadly classified as follows:

1. Too broad: what will the economy be like in the future?

A country's economy has many facets and as such it would be difficult to write about what it would be like in the future in one research paper.

2. Effective: how can virtual reality (VR) be used in health care?

Virtual reality (VR) is a modern technology that is effectively used by medical professionals in the field of medicine to provide health care for various patients.

3. Too narrow: how many gallons of water will we use in 2025?

The quantity of water in gallons that would be used in 2025 can easily be calculated by using a simple formula and as such the answer to this question can be provided in a sentence.

4. Effective: what are the best strategies for increasing food production in the future?

The best strategies to be adopted for an increase in food production in the future can be developed into a full research paper based on strategies that have been used in the past.

Read more on research question here: brainly.com/question/15623923

8 0

2 years ago

Read 2 more answers

Scarlet needs to create a file to hold a list of expenses for an upcoming project, and she needs to do some basic calculations w

lubasha [3.4K]

The Kind of file that would be the best to handle the basic calculation would be a spreadsheet.

<h3>What is a spreadsheet?</h3>

This is the term that is used to refer to the file that is made up of rows and columns. The rows and columns are made up of what is referred to as cells. Each cell contains data.

The spreadsheet is used to take care of calculations and helps majorly in statistics and accounting. Examples of spreadsheets are excel.

These sheets are able to carry out computations even up to statistical and engineering calculations. They help to make work faster and make interpretation of work easier.

The use of spreadsheets have kind of helped to make the use of lots of statistical formulas obsolete. This is because the operations are easier and faster when done on the sheets.

Read more on spreadsheets here:

brainly.com/question/26919847

#SPJ1

3 0

1 year ago

What is the volume of the cone in terms of π? a) 8π in3 b) 16π in3 c) 24π in3 d) 32π in3

Svetlanka [38]

Answer:

Explanation:

What is the radius or diameter? I can't help you without that.

4 0

2 years ago

A bicycle wheel is mounted on a fixed, frictionless axle, with a light string wound around its rim. The wheel has moment of iner

xz_007 [3.2K]

The final rotational speed ω_final and the instantaneous power P delivered to the wheel are; ω_f = √((ω_i)² + 2(FL/(kmr²) and P = Frω_i

<h3>What is the Instantaneous Power?</h3>

A) From rotational kinematics, the formula for the final angular velocity is;

ω_f = √((ω_i)² + 2αθ)

where;

α is angular acceleration

θ = L/r. Thus;

ω_f = √((ω_i)² + 2α(L/r))

Now, α = T/I

Where;

I is moment of inertia = k*m*r²

T is t o r q u e = F * r

Thus;

α = (F * r)/(kmr²)

α = F/(kmr)

ω_f = √((ω_i)² + 2(F/(kmr))(L/r))

ω_f = √((ω_i)² + 2(FL/(kmr²)

B) Formula for instantaneous power is;

P = Fv

where at t = 0; v = rω_i

Thus;

P = Frω_i

Read more about Instantaneous Power at; brainly.com/question/14244672

4 0

2 years ago