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lorasvet [3.4K]
2 years ago
10

Answer please i need help with this

Mathematics
2 answers:
stellarik [79]2 years ago
5 0

\qquad\qquad\huge\underline{\boxed{\sf Answer}}

Let's evaluate ~

\qquad \sf  \dashrightarrow \: \dfrac{1}{3 {}^{ - 2}   \times {x}^{ - 4} \times  {y}^{2}  }

plug in the values :

\qquad \sf  \dashrightarrow \: \dfrac{1}{3 {}^{ - 2}  \times  {3}^{ - 4}  \times { - 1}^{2}  }

\qquad \sf  \dashrightarrow \: \dfrac{1}{3 {}^{ - 6}  {}^{ } {}^{}  }

\qquad \sf  \dashrightarrow \: {3}^{6}

\qquad \sf  \dashrightarrow \:729

Therefore, B is the Correct choice ~

・ .━━━━━━━†━━━━━━━━━.・

anyanavicka [17]2 years ago
4 0

Answer:

729

Step-by-step explanation:

Given expression:

\sf \dfrac{1}{3^{-2}x^{-4}y^2}

Apply exponent rule \sf \dfrac{1}{a^{-b}}=a^b

\sf \implies \dfrac{3^2x^4}{y^2}

\sf \implies \dfrac{9x^4}{y^2}

Substituting x = 3 and y = -1:

\sf \implies \dfrac{9(3)^4}{(-1)^2}

\sf \implies \dfrac{9 \cdot 81}1}

\sf \implies 729

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Answer:

Mike's average monthly salary is $ 1,814.

Step-by-step explanation:

To determine Mike's average monthly salary, taking into account that he earns $ 284, $ 292, $ 418, $ 350, and $ 470 weekly, these amounts must be added for the 5-week duration of the month through the following calculation:

284 + 292 + 418 + 350 + 470 = X

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Thus, given that this sum totals $ 1,814, Mike's average monthly salary is $ 1,814.

5 0
3 years ago
Selena buys 4 peaches that weigh 1 pound in all. Each peach weigh the same amount. Peaches are on sale for $2.24 per pound. Writ
DENIUS [597]

Answer:

The required equation is

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And p = 0.56  [ where p is in $]

Step-by-step explanation:

Given that Selena buys 4 peaches that weight 1 pound in all.

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Since the total weight of peaches is 1 pound.

So the price of 4 peaches is $2.24.

Let p be the price of 1 peaches.

Then the price of 4 peaches is $(4×p)

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According to the problem,

4p = 2.24

\Rightarrow p=\frac{2.24}{4}

⇒p=0.56      [ where p is in $]

The required equation is

4p = 2.24

And p = 0.56  [ where p is in $]

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3 years ago
(10^2)^-3 = (10^-2)^3
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Answer: Hello!.......

1e-12 I am SOOO sorry if im wrong. I'm So sorry. Hope this helps you.♥

Step-by-step explanation:

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3 years ago
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