Can you please help me with this question?

Which computer device helps you input data in the form of text, numbers, and commands? The helps you input data in the form of t

Agata [3.3K]

Answer:

Key board

Step-by-step explanation:

Keyboards are input devices that allow the entry of data and commands by simply pressing down keys on the keyboard.

Keyboards are a common place input device, often used alongside a mouse. They can be wired or wireless.

Typical applications for keyboards

Used in everyday computing to manually enter data and commands, e.g. writing a report in a word processor

Benefits of keyboards

Simple and easy to use

Potentially a fast way to enter data

6 0

3 years ago

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The figure is made up of a cylinder and a hemisphere. To the nearest whole number, what is the approximate volume of this figure

Novosadov [1.4K]

Hello!

The figure is made up of a cylinder and a hemisphere. To the nearest whole number, what is the approximate volume of this figure?

Use 3.14 to approximate π .

Enter your answer in the box. in.³

Data: (Cylinder)

h (height) = 7 in

r (radius) = 2.5 in (The diameter is 5 being twice the radius)

Adopting: $\pi \approx 3.14$

V (volume) = ?

Solving: (Cylinder volume)

$V = \pi *r^2*h$

$V = 3.14 *2.5^2*7$

$V = 3.14*6.25*7$

$V = 137.375 \to \boxed{V_{cylinder} \approx 137.38\:in^3}$

Note: Now, let's find the volume of a hemisphere.

Data: (hemisphere volume)

V (volume) = ?

r (radius) = 2.5 in (The diameter is 5 being twice the radius)

Adopting: $\pi \approx 3.14$

If: We know that the volume of a sphere is $V = 4* \pi * \dfrac{r^3}{3}$ , but we have a hemisphere, so the formula will be half the volume of the hemisphere $V = \dfrac{1}{2}* 4* \pi * \dfrac{r^3}{3} \to \boxed{V = 2* \pi * \dfrac{r^3}{3}}$

Formula: (Volume of the hemisphere)

$V = 2* \pi * \dfrac{r^3}{3}$

Solving:

$V = 2* \pi * \dfrac{r^3}{3}$

$V = 2*3.14 * \dfrac{2.5^3}{3}$

$V = 2*3.14 * \dfrac{15.625}{3}$

$V = \dfrac{98.125}{3}$

$\boxed{ V_{hemisphere} \approx 32.70\:in^3}$

Now, to find the total volume of the figure, add the values: (cylinder volume + hemisphere volume)

Volume of the figure = cylinder volume + hemisphere volume

Volume of the figure = 137.38 in³ + 32.70 in³

$Volume\:of\:the\:figure =170.08 \to \boxed{\boxed{\boxed{Volume\:of\:the\:figure = 170\:in^3}}}\end{array}}\qquad\quad\checkmark$

_______________________

I Hope this helps, greetings ... Dexteright02! =)

5 0

3 years ago

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A Mexican restaurant sells quesadillas in two sizes: a "large" 12 inch-round quesadilla and a "small" 5 inch-round quesadilla. W

Nataly [62]

Answer:

Half of the 12-inch quesadilla

Step-by-step explanation:

Half of 12 inch:

½ × 3.14 × 12² = 226.08 in²

5 inch:

3.14×5² = 78.5 in²

5 0

3 years ago

A president and vice president for a sorority are chosen from ten people. How many different president/vice president combinatio

Arisa [49]

Answer:

There are 90 ways.

Step-by-step explanation:

We have ten people and we have to chose 2 of those people to be the president and vice president. So first we can chose a president, we have 10 choices for president as there are 10 people.

Now we can chose vice president but this time we only have 9 choices because we already chose a president which gives us 9 other people to chose who the vice president is.

Now we need to multiply 10 and 9 together which gives us the total amount of possible combinations for president and vice president if there are 10 people to chose from.

10*9 multiplying

= 90.

Therefore there are 90 ways for a president and a vice president to be chosen for a sorority from ten people.

4 0

4 years ago

Find the measures of the interior angles.

MAVERICK [17]

Answer:

The two angles are 39°

Step-by-step explanation:

180 - 102 = 78. 78/2 = 39.

6 0

3 years ago

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Can you please help me with this question?​

Can you please help me with this question?