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Leya [2.2K]
3 years ago
6

<strong>Racionaliza las siguientes expresiones:</strong><br />a) 1-√3/5√2<br />b) 3-√3/3+√3

Mathematics
1 answer:
Nostrana [21]3 years ago
7 0
a) \frac{1- \sqrt{3} }{5 \sqrt{2} } = \frac{\sqrt{2}- \sqrt{6}  }{10} \\\\&#10;b) \frac{3- \sqrt{3} }{3+\sqrt{3}} = \frac{3\sqrt{3}-3}{6} = \frac{3(\sqrt{3}-1)}{6} =\frac{\sqrt{3}-1}{2}.
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cora arrived at school for 1 hr for doctores appointment she was dismissed from school at 3 15 pm how long was cora at school
Ostrovityanka [42]

Answer:

7 hours

Step-by-step explanation:

5 0
3 years ago
What is the equation of the line that passes through the point (6,3) has a slope of -1/3
DerKrebs [107]

Answer:

y = -1/3x + 5

Step-by-step explanation:

y = mx + b

so y = 3, x = 6, m = -1/3

then 3 = (-1/3)6 + b

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b = 5

so y = -1/3x + 5

5 0
2 years ago
Please explain in steps!
iragen [17]

3. \:  {2 + 4^2} - 4+ 2 \\  = 2 + 16 - 4 + 2 \\  = 18 - 4 + 2 \\  = 14 + 2 \\  = 16 \\  \\ 4. \:  {84 + 7}^{2}  - 9 + 2 \\  = 91^{2}  - 9 + 2 \\  = 8281 - 9 + 2 \\  = 8272 + 2 \\  = 8274 \\  \\ 5. \: {5 ^{2}  + 7} + 5 - 6 \\  = 25 + 7 + 5 - 6 \\  = 32 + 5 - 6 \\  = 37 - 6 \\  = 31 \\  \\ 6. \: {4^{2}  + 7} + 4 - 10 \\  = 16 + 7 + 4 - 10 \\  = 23 + 4 - 10 \\  = 27 - 10 \\  = 17 \\  \\ 7. \: 2 - {4 + 2}^{2}  + 9 \\  = 2 - 6^{2}  + 9 \\  = 2 - 36 + 9 \\  =  - 34 + 9 \\  =  - 25 \\  \\ 8. \: 3 - {6 + 3}^{2}  + 9 \\  = 3 - 9^{2}  + 9 \\  = 3 - 81 + 9 \\  =  - 78 + 9 \\  =  - 69 \\  \\ 9. \: {42 + 7}^{2}  - 2 + 5 \\  = 49^{2}  - 2 + 5 \\  = 2401 - 2 + 5 \\  = 2399 + 5 \\  = 2404 \\ \\ 10. \: {2^{2}  + 5} \times 2 - 7 \\  = (4 + 5) \times 2 - 7 \\  = 9 \times 2 - 7 \\  = 18 - 7 \\  = 11 \\  \\ 11. \: 6 \times {66 + 11 - 5}^{2}  \\  = 6 \times 77 - 5^{2}  \\  = 6 \times 72^{2}  \\  = 6 \times 5184 \\  = 31104 \\  \\ 12. \: {78 + 13}^{2} - 8 + 5 \\  = 91^{2}   - 8 + 5 \\  = 8281 - 8 + 5 \\  = 8273 + 5 \\  = 8278

5 0
3 years ago
Which ratio is equivalent to 4/9
Dmitrij [34]

Answer:

D. 12/27

Step-by-step explanation:

Ratios are just like fractions

12 ÷ 3 = 4

27 ÷ 3 = 9

4/9 is 12/27 simplified by 3

5 0
3 years ago
Read 2 more answers
4x + 3 = x + 2(x + 7) x=
stiv31 [10]

Answer:

X= -11/4 + -1/4 √145 or X= -11/4 + 1/4 √145

Step-by-step explanation:

Hope this helped<3

4 0
3 years ago
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