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Vlad1618 [11]
2 years ago
11

3x^2-5=0 completing square

Mathematics
1 answer:
Valentin [98]2 years ago
5 0
It would be good if you add the answers choice, but I guess it’s (b/2)^2
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Select the equivalent expression.
Free_Kalibri [48]

Answer:

\frac{7^{15}}{3^{30}}

Step-by-step explanation:

The given expression is:

(\frac{3^{-6}}{7^{-3}})^{5}

Moving the expression to the other side in the fraction changes its sign to opposite. A numerator with negative exponent, when written in denominator will have the positive exponent. Using this rule, we can write:

(\frac{3^{-6}}{7^{-3}})^{5}\\\\ = (\frac{7^{3}}{3^{6}} )^{5}

The exponent 5 can be distributed to both numerator and denominator as shown:

(\frac{7^{3}}{3^{6}} )^{5}\\\\ = \frac{(7^{3})^{5}}{(3^{6})^{5}}

The power of a power can be written as a product. i.e.

\frac{(7^{3})^{5}}{(3^{6})^{5}}\\\\ =\frac{7^{15}}{3^{30}}

So, the expression similar to the given expression and with positive exponents is: \frac{7^{15}}{3^{30}}

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2 years ago
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klemol [59]

Answer:

32 is 40% of 80

Step-by-step explanation:

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3 years ago
The scale of the drawing was 1 centimeters:4 meters.What is the ratio of the drawing?
muminat

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Answer:

  1 : 400

Step-by-step explanation:

A meter is 100 cm, so 4 m = 400 cm.

  1 cm : 4 m = 1 cm : 400 cm = 1 : 400

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The next student presents a monologue that is about 0.5 minutes long. What effect will this have on the graph?
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Step-by-step explanation:

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