All categories

2 years ago

Why do meteorologists use data such as temperature, wind speed, and air

Computers and Technology

1 answer:

Tresset [83]2 years ago

3 0

Answer:

Explanation:

You might be interested in

Each cout statement has a syntax error. Type the first cout statement, and press Run to observe the error message. Fix the error

Vitek1552 [10]

Answer:

cout << "Num: " << songNum << endl;

cout << songNum << endl;

cout << songNum << " songs" << endl;

Explanation:

Since you did not provide the whole code and each statement has an error, it seems the name of the variable is songNum. Depending on these, you can see the corrections below:

cout << "Num: " << songnum << endl; → cout << "Num: " << songNum << endl;

The name of the variable must be written correctly.

- - -

cout << int songNum << endl; → cout << songNum << endl;

Declaration of the variable must be done before printing it.

- - -

cout << songNum " songs" << endl; → cout << songNum << "songs" << endl;

There must be "<<" signs between each part while printing.

6 0

2 years ago

Whenever you press a key, click the mouse or start an application, you're sending instructions tow

rosijanka [135]

CPU (central processing unit)

4 0

2 years ago

List three different sets of keywords that could be used to search for information on how to

ohaa [14]

Answer:

Set 1: "Trumpet", "Maintenance", "Instructions"

Set 2: "How to", "Trumpet", "Care", "Instrument"

Set 3: "Proper", "Clean", "Service", "Trumpet"

Explanation:

Actual search engines allow very advanced searches, using multiple words related with your objective will improve the results obtained. Also you can refine your search by using specific operators to include or exclude words, websites, file types or dates.

For example in Google search, using + and - will force the results to include and exclude respectively the following word. Typing several words between " (double quotes) will search specifically for that sentence, the same words and in the same order. Using filetype: will restrict results of a specific file extension, like jpg, or pdf.

There are many other operators available, you can find more information about this by looking for "advanced search operators" of your favourite search engine.

7 0

3 years ago

the volume of two similar solids are 1080cm and 1715cm .if the curved surface area of the smaller cone is 840cm .fond the curved

gavmur [86]

Answer:

$A_{big} = 1143.33cm^2$

Explanation:

The given parameters are:

$V_{small} = 1080$

$V_{big} = 1715$

$C_{small} = 840$

Required

Determine the curved surface area of the big cone

The volume of a cone is:

$V = \frac{1}{3}\pi r^2h$

For the big cone:

$V_{big} = \frac{1}{3}\pi R^2H$

Where

R = radius of the big cone and H = height of the big cone

For the small cone:

$V_{small} = \frac{1}{3}\pi r^2h$

Where

r = radius of the small cone and H = height of the small cone

Because both cones are similar, then:

$\frac{H}{h} = \frac{R}{r}$

and

$\frac{V_{big}}{V_{small}} = \frac{\frac{1}{3}\pi R^2H}{\frac{1}{3}\pi r^2h}$

$\frac{V_{big}}{V_{small}} = \frac{R^2H}{r^2h}$

Substitute values for Vbig and Vsmall

$\frac{1715}{1080} = \frac{R^2H}{r^2h}$

Recall that: $\frac{H}{h} = \frac{R}{r}$

So, we have:

$\frac{1715}{1080} = \frac{R^2*R}{r^2*r}$

$\frac{1715}{1080} = \frac{R^3}{r^3}$

Take cube roots of both sides

$\sqrt[3]{\frac{1715}{1080}} = \frac{R}{r}$

Factorize

$\sqrt[3]{\frac{343*5}{216*5}} = \frac{R}{r}$

$\sqrt[3]{\frac{343}{216}} = \frac{R}{r}$

$\frac{7}{6} = \frac{R}{r}$

The curved surface area is calculated as:

$Area = \pi rl$

Where

$l = slant\ height$

For the big cone:

$A_{big} = \pi RL$

For the small cone

$A_{small} = \pi rl$

Because both cones are similar, then:

$\frac{L}{l} = \frac{R}{r}$

and

$\frac{A_{big}}{A_{small}} = \frac{\pi RL}{\pi rl}$

$\frac{A_{big}}{A_{small}} = \frac{RL}{rl}$

This gives:

$\frac{A_{big}}{A_{small}} = \frac{R}{r} * \frac{L}{l}$

Recall that:

$\frac{L}{l} = \frac{R}{r}$

So, we have:

$\frac{A_{big}}{A_{small}} = \frac{R}{r} * \frac{R}{r}$

$\frac{A_{big}}{A_{small}} = (\frac{R}{r})^2$

Make $A_{big}$ the subject

$A_{big} = (\frac{R}{r})^2 * A_{small}$

Substitute values for $\frac{R}{r}$ and $A_{small}$

$A_{big} = (\frac{7}{6})^2 * 840$

$A_{big} = \frac{49}{36} * 840$

$A_{big} = \frac{49* 840}{36}$

$A_{big} = 1143.33cm^2$

Hence, the curved surface area of the big cone is 1143.33cm^2

4 0

3 years ago

What is the purpose of the print area feature

Otrada [13]

Answer: The Print Area function in Excel allows you to print part of a spreadsheet rather than the full sheet

Explanation:

3 0

3 years ago