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2 years ago

Which situation could describe Yana’s activities in the computer lab?

2 answers:

8 0

First, when Yana opened her saved paper, she opened an existing Word file and edited its content. Then she edited her work and continued.

Second, when Yana began writing a new paper, she opened a blank Word file and began writing her paper and saved and edited her work.

She is practicing the skill of opening, creating, saving a Word file. <span />

spayn [35]2 years ago

8 0

Answer: it's A: took the test and its very simple if you stop to read it;

(Yana opened her saved paper, wrote, took a break, deleted some of the words, and then began writing again.)

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Jenny multiplies the square root of her favorite positive integer by $\sqrt{2}$. Her product is an integer. a) Name three number

Dmitry [639]

Answer:

Part a) $2,50,18$

Part b) When Jenny divides the square root of her favorite positive integer by $\sqrt{2}$ , she gets an integer

Step-by-step explanation:

Let

x-------> the favorite positive integer

Part a)

1) For $x=2$

$\sqrt{2}*\sqrt{2}=\sqrt{4}=2$ -----> the product is an integer

The number $x=2$ could be Jenny favorite positive integer

2) For $x=50$

$\sqrt{50}*\sqrt{2}=\sqrt{100}=10$ -----> the product is an integer

The number $x=50$ could be Jenny favorite positive integer

3) For $x=18$

$\sqrt{18}*\sqrt{2}=\sqrt{36}=6$ -----> the product is an integer

The number $x=18$ could be Jenny favorite positive integer

Part B)

1) For $x=2$

$\sqrt{2}/\sqrt{2}=\sqrt{1}=1$ -----> the result is an integer

2) For $x=50$

$\sqrt{50}/\sqrt{2}=\sqrt{25}=5$ -----> the result is an integer

3) For $x=18$

$\sqrt{18}/\sqrt{2}=\sqrt{9}=3$ -----> the result is an integer

Therefore

When Jenny divides the square root of her favorite positive integer by $\sqrt{2}$ , she gets an integer

4 0

2 years ago

If f (x) = StartFraction x minus 3 Over x EndFraction and g(x) = 5x – 4, what is the domain of (f circle g) (x)?

alexandr1967 [171]

Answer:

<h2>The domain is all real values of x except $\frac{4}{5}$ .</h2>

Step-by-step explanation:

The function, $f(x) = \frac{x - 3}{x}$ .

g(x) = 5x - 4.

Hence, (f circle g) (x) = $\frac{5x - 4 - 3}{5x - 4}$ .

We need to find the domain of (f circle g) (x) .

The domain means the set of values of x, for which we will get a real value of (f circle g) (x).

The function will not give a real value when, 5x - 4 = 0 that is $x = \frac{4}{5}$ .

Hence, the domain of the function will be all real values of x rather than $\frac{4}{5}$ .

5 0

2 years ago

Read 2 more answers

Imagine you have a data set with 9,987 names. The data set is sorted alphabetically. You want to find out if the name "David Joy

REY [17]

Answer:

Step-by-step explanation:

David Joyner might be the first name, so you may only have to check 1 name.

6 0

2 years ago

Explain why the graphing calculator cannot be used to solve or approximate solutions to all polynomial equations.

Lelu [443]

Let's put it this way: If you plot a few non-x-intercept points and then draw a curvy line through them,you will not know if you got the x-intercepts even close to being correct. <span>The only way you can be sure of your x-intercepts is to set the quadratic equal to zero and solve. So its a matter of guessing from the pictures. Basicaly said, the calculator won't give you the exact result.</span>

4 0

2 years ago

Read 2 more answers

If the sin 90º = 1, then which statement is true?

Natali [406]

in a right-triangle, like in the 1st Quadrant, cosine and sine are complements, so then

sin(x) = cos(90° - x)

cos(x) = sin(90° - x)

for this case, sin(<u>90°</u>) = cos(90° - <u>90°</u>), or just cos(0°) = 1.

6 0

2 years ago