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kakasveta [241]
3 years ago
6

2. How do you multiply and divide rational expressions?

Mathematics
1 answer:
tatuchka [14]3 years ago
7 0

Answer:

1.Factor both the numerator and the denominator.

2.Write as one fraction.

3: Simplify the rational expression.

4: Multiply any remaining factors in the numerator and/or denominator.

Step-by-step explanation:

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If n and k are positive integers, is n divisible by 6 ? (1) n = k(k + 1)(k – 1) (2) k – 1 is a multiple of 3.
xz_007 [3.2K]

Answer: yes, it is

Step-by-step explanation:

A number is divisible by 6 if it is divisible by 2 and 3 simultaniously.

n = k(k+1)(k-1)

If k-1 is a multiple of 3, n is divisible by 3, so one of the requirements is ok.

Now, if k-1 is a multiple of 3, it can be even or odd.

if k-1 is even, then it is divisible by 2 and as it is divisible by 3 as well, n is divisible by 6

if k-1 is odd, then k and k+1 is even, hence, divisible by 2.

As n = k(k+1)(k-1), n is also divisible by 6.

4 0
4 years ago
Wat is the greatest common factor of 20 and 36
Maru [420]

Answer:

<h2><em><u>2</u></em><em><u>0</u></em><em><u>=</u></em><em><u>1</u></em><em><u>,</u></em><em><u>2</u></em><em><u>,</u></em><em><u>4</u></em><em><u>,</u></em><em><u>5</u></em><em><u>,</u></em><em><u>1</u></em><em><u>0</u></em><em><u>,</u></em><em><u>2</u></em><em><u>0</u></em></h2><h2><em><u>3</u></em><em><u>6</u></em><em><u>=</u></em><em><u>1</u></em><em><u>,</u></em><em><u>2</u></em><em><u>,</u></em><em><u>3</u></em><em><u>,</u></em><em><u>4</u></em><em><u>,</u></em><em><u>6</u></em><em><u>,</u></em><em><u>9</u></em><em><u>,</u></em><em><u>3</u></em><em><u>6</u></em></h2><h2><em><u>Answer</u></em><em><u>:</u></em><em><u>-</u></em><em><u> </u></em><em><u>4</u></em></h2>
3 0
3 years ago
Read 2 more answers
2r + 3s = 14<br> 6r - 3s = 6
Gekata [30.6K]

Answer:

r= 2.5 and s=3

Step-by-step explanation:

2r plus 6r equals 8r

-3s and 3s cancell eachother out

and 14 plus 6 is 20

with leaves us with

8r=20

20 divided by 8 is 2.5

now we go back to the orginal problems

2 times 2.5 is 5

14 minus 5 is 9

9 divided by 3 is 3

so s=3

but to check this all you would use r=2.5 and s=3 in the othe equsion

6 times 2.5 is 15

and -3 times 3 is -9

15-9= 6

6 0
3 years ago
Julie says the most amount of time spent on homework is 1 1\2 times the least amount of time spent on homework
irakobra [83]

Data for the question :

1 3/4, 2 1/2, 2, 2 3/4, 1, 1 3/4, 1 1/4, 3, 3 1/4, 3 3/4, 2, 2

Answer:

Julie is Incorrect

Step-by-step explanation:

Given the data:

1 3/4, 2 1/2, 2, 2 3/4, 1, 1 3/4, 1 1/4, 3, 3 1/4, 3 3/4, 2, 2

The least amount of time spent is : 1

The most amount of time spent is 3 3/4

According to Julie ; the most amount of time spent is equal to 1 1/2 the least amount of time spent.

That is,

3 3/4 = 1 * 1 1/2

3 3/4 = 15/4

1 * 3/2 = 3/2

Hence, she is incorrect ;

15/4 ≠ 3/2

8 0
3 years ago
I need help ASAP for my homework
bogdanovich [222]

Answer:

slope of line ax + by = c is -a/b

so, slope of 7x +2y =5 is -7/2

3 0
3 years ago
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