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s2008m [1.1K]
3 years ago
9

Can somebody talk (9999x784)+500= free points

Mathematics
2 answers:
enyata [817]3 years ago
8 0

Answer:

E

Step-by-step explanation:

Delicious77 [7]3 years ago
4 0

Answer:

7839716

Step-by-step explanation:

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Can someone answer these questions ? thank you
Naya [18.7K]

Answer:

Step-by-step explanation:

12a)To rationalize the denominator, multiply the denominator and numerator by √5.

\frac{15}{\sqrt{5}}=\frac{15*\sqrt{5}}{\sqrt{5}*\sqrt{5}}\\\\=\frac{15\sqrt{5}}{5}\\\\=3\sqrt{5}

b) (a+b)² = a² + 2ab + b²

(1 +√3)² = 1² + 2*1*√3 + (√3)²

= 1 + 2√3 + 3

= 4 + 2√3

a = 4 ; b =2

13) (a + b)(a - b) = a² - b²

\frac{(6-\sqrt{5})(6+\sqrt{5})}{\sqrt{31}}=\frac{6^{2}-(\sqrt{5})^{2}}{\sqrt{31}}\\\\ =\frac{36-5}{\sqrt{31}}\\\\=\frac{31}{\sqrt{31}}\\\\=\frac{31*\sqrt{31}}{\sqrt{31}*\sqrt{31}}\\\\=\frac{31\sqrt{31}}{31}\\\\=\sqrt{31}

5 0
3 years ago
O GRAPHS, FUNCTIONS, AND SEQUENCES
WINSTONCH [101]
Always use the formula (y2-y1)/(x2-x1) to find a line’s slope, given two points:

(-1- -8)/(4-5) = 7/-1 = -7

-7 is the slope
7 0
2 years ago
Which of the following symbols indicates that a value is included in a solution set.
Ulleksa [173]
Answer: Filled in bubble
3 0
3 years ago
Read 2 more answers
Please help, will give brainliest! :)
Nonamiya [84]

Answer:

the answer is 2>am sorry if wrong

6 0
2 years ago
Use scientific notation to determine the answer :
vampirchik [111]
A= 1.5 × 10^10




Hope that helps
3 0
3 years ago
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