1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
denis-greek [22]
3 years ago
5

Neeeeeed the help please

Mathematics
1 answer:
lions [1.4K]3 years ago
8 0
The correct answer is -5/7. Hope this helps.
You might be interested in
Rationalize the denominator of $\frac{5}{2+\sqrt{6}}$. The answer can be written as $\frac{A\sqrt{B}+C}{D}$, where $A$, $B$, $C$
horrorfan [7]

Answer:

A +B+C+D  = 3 is the correct answer.

Step-by-step explanation:

Given:

$\frac{5}{2+\sqrt{6}}$

To find:

A+B+C+D = ? if given term is written as following:

$\frac{A\sqrt{B}+C}{D}$

<u>Solution:</u>

We can see that the resulting expression does not contain anything under \sqrt (square root) so we need to rationalize the denominator to remove the square root from denominator.

The rule to rationalize is:

Any term having square root term in the denominator, multiply and divide with the expression by changing the sign of square root term of the denominator.

Applying this rule to rationalize the given expression:

\dfrac{5}{2+\sqrt{6}} \times \dfrac{2-\sqrt6}{2-\sqrt6}\\\Rightarrow \dfrac{5 \times (2-\sqrt6)}{(2+\sqrt{6}) \times (2-\sqrt6)} \\\Rightarrow \dfrac{10-5\sqrt6}{2^2-(\sqrt6)^2}\ \ \ \ \   (\because \bold{(a+b)(a-b)=a^2-b^2})\\\Rightarrow \dfrac{10-5\sqrt6}{4-6}\\\Rightarrow \dfrac{10-5\sqrt6}{-2}\\\Rightarrow \dfrac{-5\sqrt6+10}{-2}\\\Rightarrow \dfrac{5\sqrt6-10}{2}

Comparing the above expression with:

$\frac{A\sqrt{B}+C}{D}$

A = 5, B = 6 (Not divisible by square of any prime)

C = -10

D = 2 (positive)

GCD of A, C and D is 1.

So, A +B+C+D = 5+6-10+2 = \bold3

5 0
3 years ago
X — 5 &lt; 3 OR x – 5 &gt; 8
Vlad1618 [11]

Answer:

x<8 or x>13

Step-by-step explanation:

x-5 < 3

x < 3 + 5

x <8

OR

x – 5 > 8

x > 8 +5

x >13

combining the two, the combined answer for x is

x<8 or x>13

8 0
2 years ago
Read 2 more answers
If Mel opens his refrigerator door 36 times every day, about how many times will it be opened in April? Will the exact answer be
USPshnik [31]
1080 times in April
6 0
2 years ago
Read 2 more answers
please can someone help me with this question? i will mark brainliest and i would also really appreciate it! :)
Sloan [31]

Answer:

y ≤ 3x- 1

Step-by-step explanation:

The line is solid, so your answer must have a ≤ or ≥ symbol. And the area below the line is shaded so you would also know you answer must have a ≤ or < symbol.

8 0
2 years ago
Read 2 more answers
Eleven thirds times seven thirds times five thirds
STatiana [176]

Answer:

three hundred and eight five twenty sevenths

4 0
2 years ago
Other questions:
  • For number five I need help plz help
    5·1 answer
  • Kyle is purchasing a refurbished phone. He is looking at the phone models 4, 5, and 6, with a protective case in red (R), blue (
    6·2 answers
  • -3 is which type of number? Select all that apply.
    10·2 answers
  • Please help!!!!!!!!!!!
    9·1 answer
  • List numbers which have letter A in their spelling from 1-100?
    5·2 answers
  • At Madison High school each student studies exactly one foreign language. Three fifths of the students taking Spanish, and one f
    6·1 answer
  • The cost of renting a boat at a lake is $35 per hour plus $5 for life jackets. Write an
    15·1 answer
  • Factorisation de <br> 7x+7
    14·1 answer
  • Sq root 30
    9·2 answers
  • HELP PLS!!!!!!!! ASAP
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!