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kherson [118]
3 years ago
9

Please help with all of these

Mathematics
1 answer:
Brut [27]3 years ago
6 0

\\ \ast\sf\longmapsto 3x^23x^4=3x^{2+4}=3x^6

\\ \ast\sf\longmapsto m^5m^{-3}=m^{5-3}=m^2

\\ \ast\sf\longmapsto 2x^4-6y=x^4-3y

\\ \ast\sf\longmapsto 4a^3c^{-4}4a^{-1}c^4=4a^2c^0=4a^2

\\ \ast\sf\longmapsto 5x^2xy^3=5x^3y^3

\\ \ast\sf\longmapsto (y^6)^0=y^0=1

\\ \ast\sf\longmapsto (3m^3)^3=3m^9

\\ \ast\sf\longmapsto 2x^5)^{-1}=\dfrac{1}{2x^5}

\\ \ast\sf\longmapsto (a^4c^{-1})^2=a^8c^{-2}=\dfrac{a^8}{c^2}

\\ \ast\sf\longmapsto (4x^2y^{-1})^{-1}=4x^{-2}y

\\ \ast\sf\longmapsto \dfrac{y^3}{5y^4}=\dfrac{1}{5y}

\\ \ast\sf\longmapsto \dfrac{8m^6}{8m^5}=8m

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Answer:

a) 4,096

b) 0.000244

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lauren wants to keep her cell phone bull under $60 per month. Her current cell phone plan is $30 per month plus $0.50 per text.
stellarik [79]

Answer:

The correct answer is t < 60.

Step-by-step explanation:

Lauren wants to keep her cell phone bill below $60 per month.

Lauren's current cellphone plan charges her a fixed price of $30 and per text price for one text is $0.50.

Let Lauren sends t texts in a complete month.

Total money spent on texts in a month is given by $ (0.50 × t)

Therefore Lauren's total spent in a month is given by $ (30 + (0.50 × t)).

But this amount should be under $60 as per as the given problem.

∴ 30 + (0.50 × t) < 60

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⇒ t < \frac{30}{0.50}

⇒ t < 60.

So in order to keep her phone monthly bill under $60, Lauren should keep her number of texts below 60.

8 0
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Wynona buys some new boots that are priced $85.79. She gets successive discounts of 10% followed by 5% off on the boots. The pur
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Answer:84.5%

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An event will definitely either happen or not happen.

The total probability of it (happening or not happening) is 100%.

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