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3 years ago

If a square room is 784 square feet what is the length of each wall

Mathematics

1 answer:

Tresset [83]3 years ago

8 0

Area = 784 Square ft.
28 x 28 = 784
Square = Are sides are congruent
28 ft is the answer!
Glad to Help!

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Rationalize the denominator 2√7+√3/3√7-√3

Dahasolnce [82]

Answer:

$\frac{2 \sqrt{7} + \sqrt{3}}{3 \sqrt{7} - \sqrt{3} } = \frac{2 \sqrt{7} + \sqrt{3}}{3 \sqrt{7} - \sqrt{3} } . \frac{3 \sqrt{7} + \sqrt{3} }{3 \sqrt{7} + \sqrt{3} } \\ \\ = \frac{(2 \sqrt{7} + 3)(3 \sqrt{7} + \sqrt{3}) }{(3 \sqrt{7} - 3)(3 \sqrt{7} + \sqrt{3} ) } \\ \\ = \frac{(42 + 2 \sqrt{21} + 9 \sqrt{21} + 3 \sqrt{21} )}{63 - 3} \\ \\ = \frac{42 + 2\sqrt{21} + 9 \sqrt{21} + 3 \sqrt{21} }{60}$

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3 years ago

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ELEN [110]

Answer:graph B

Step-by-step explanation:because if a line is parallel they have no solutions with a certain slope

If two lines intersect then they must have at least a solution

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3 years ago

Convert 0.865 from Base 10 to Base 2.8 and 16.

svetlana [45]

Answer:

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Step-by-step explanation:

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3 years ago

Please help ASAP

Ivan

Answer:

(5, 12, 13)

Step-by-step explanation:

5^2+12^2=25+144=169=13^2

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3 years ago

How many solutions does 4x + 5 = 6(x + 3) - 20 - 2x have? Show your work. SOLUTION

liq [111]

Answer:

There are no solutions.

Step-by-step explanation:

4x+5=6x+18-20-2x (Distributive Property)

4x+2x-6x=18-20+5 (Combine Like Terms)

0=3 (Simplify)

That doesn't make any sense, so there are no solutions.

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3 years ago