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3 years ago

15

In this task, you have worked with numeric fractions and algebraic fractions (rational expressions). Describe how operations on

fractions with numbers are similar to, and different from, operations on fractions with variables.

1 answer:

MAXImum [283]3 years ago

4 0

When you use variables, you can end up with the denominator being zero which is undefined

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A scientist wants to research the potential spread of germs by contact. she knows that the number of possible handshakes within

Viefleur [7K]

Given that <span>the number of possible handshakes within a group of n people is given by the equation:

</span> $N= \frac{1}{2} (n^2-n)$
<span>
Given that there are 105 people at a party, the number of possible handshakes is given by:

</span> $N= \frac{1}{2} (105^2-105) \\ \\ = \frac{1}{2} (11025-105)=10920$ <span>
</span>

8 0

3 years ago

Runners in a long distance race start out going 6 kilometers east and then head north for the remainder of the race. The finish

Harrizon [31]

Answer:

Step-by-step explanation:

alright lets get started.

Please refer the diagram I have attached.

the runner traveled, six kilometers east.

Next, they turn to north and suppose they run x kilometers.

The starting and the ending points distance is 10 kilometers.

There will be a right triangle formed, we can find the value of x by using Pythagorean theorem.

$a^2+b^2=c^2$

$6^2+x^2=10^2$

$36+x^2=100$

Subtracting 36 from both sides

$x^2=100-36=64$

$x=8$

So, the runners travel 8 kilometers to the north. : answer

Hope it will help. :)

6 0

3 years ago

Read 2 more answers

From the set { 1, 2, 3, 4, 5} which values make the inequality true?

bulgar [2K]

C I'm pretty sure , it says I need more words so I'm just gonna keep typing

8 0

3 years ago

Look At The Picture Please Help!<br>Please Tell Me The step by step on how to do it

Lina20 [59]

Answer:

18

Step-by-step explanation: 32/5.76

See how much 32 goes into 57

32 goes into 57: 1 time

1 times 32 is 32

32 - 57 is 25

Then bring down your 6 which now it will be 256

Now how much dose 256 go into 32

It would be 8: 8 x 32 is 256 - 256 = 0

So ur answer is 18

4 0

3 years ago

The sum of 6 times a number and 6 is the same as the difference of the number and 9. Find the number.

Kisachek [45]

Answer:

<h2>x = -3</h2>

Step-by-step explanation:

<h3>Let x= the missing number</h3><h3 /><h3>6x + 6 = x - 9</h3><h3>6x - x = -9 - 6</h3><h3>5x ÷ 5 = -15 ÷ 5</h3><h3>x = -3</h3>

Checking:

<h3 /><h3>6(-3) + 6 = (-3) - 9</h3><h3>-18 + 6 = -12</h3><h3>-12 = -12</h3>

5 0

3 years ago