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sergiy2304 [10]
3 years ago
8

(6 − 3)3 −21/3 + 2x3 simplified is:

Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
6 0

Answer:

(3)3 - 21/3 + 6 --> 9 - 27/3 --> -18/3

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Which lst of ordered pairs represents solutions to x+y= 2? (4.6), (0, 2), (4, 2) (4,6), (0, 2). (4, 2) (4,-6), (0, 2), (4, 2) ​
olga2289 [7]

answer: x+y=2

0+2=²

( 0 , 2 )

7 0
3 years ago
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eryn buys 3 bracelets and 4 scarves.each bracelet costs $6.eryn pays the clerk $40 and gets $2 change.what is the cost,in dollar
rusak2 [61]

Answer: 5 dollars

Step-by-step explanation: if 3 bracelets are 6 dollars then 18 for 3 bracelets

so 40 - 18 = 22 minus 2 dollars back = 20

20 divided by 4 scarves = 5

hope this helps mark me brainliest if it did

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4 years ago
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Hello, help me please))
Fed [463]

Answer:

  • 6
  • 9
  • 1/8
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Step-by-step explanation:

You can rewrite the given log expressions to express them in terms of ln(a), ln(b), and ln(c). Then substituting the given values will produce the value of the expression.

Or, you can define the variables 'a', 'b', and 'c' and let your calculator compute these directly.

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<h3>1.</h3>

  \ln\left(\dfrac{a^4}{b^4c^{-2}}\right)=4\ln(a)-(4\ln(b)-2\ln(c))=4\cdot2-4\cdot3+2\cdot5=\boxed{6}

<h3>2.</h3>

  \ln\left(\sqrt{b^{-2}c^4a^2}\right)=\dfrac{1}{2}\left(-2\ln(b)+4\ln(c)+2\ln(a)\right)=\ln(a)-\ln(b)+2\ln(c)\\\\=2-3+2\cdot5=\boxed{9}

<h3>3.</h3>

  \dfrac{\ln(a^1b^2)}{\ln(bc)^2}=\dfrac{\ln(a)+2\ln(b)}{(\ln(b)+\ln(c))^2}=\dfrac{2+2\cdot3}{(3+5)^2}=\dfrac{8}{64}=\boxed{\dfrac{1}{8}}

<h3>4.</h3>

  \ln(c^{-2})\left(\ln\dfrac{a}{b^{-3}}\right)^{-1}=\dfrac{-2\ln(c)}{\ln(a)-(-3)\ln(b)}=\dfrac{-2(5)}{2+3\cdot3}=\boxed{-\dfrac{10}{11}}

_____

The applicable rules of logarithms are ...

  • ln(ab) = ln(a) +ln(b)
  • ln(a/b) = ln(a) -ln(b)
  • ln(a^b) = b·ln(a)
  • ln(a) = b  ⇔  a = e^b

Of course, a square root is the same as a 1/2 power.

7 0
2 years ago
A study of 85 adults showed that most owned at least 50 books. What type of data is 50?
o-na [289]
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4 years ago
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Derek is selecting a sock from his drawer .He chooses a sock at random and then selects a second sock at random .what is the pro
enyata [817]

Answer: 1/15

Step-by-step explanation:

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If he chooses it the second time, the probability will be 1/5 since there'll be 5 socks left and 1 striped.

The probability that Derek selected a striped sock both times will be:

= 2/6 × 1/5.

= 2/30

= 1/15

3 0
3 years ago
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