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marissa [1.9K]
3 years ago
8

You record a tenperature of 0.75C. is this a positive or neagtive temperature

Mathematics
2 answers:
LenKa [72]3 years ago
7 0
I pretty sure the answer would be negative because it not  a full degree of temperature yet because its a decimal
saul85 [17]3 years ago
6 0
Negative because it is not a full degree
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Wilma purchased 8 identical notebooks, and some pencils for school. Overall, she paid $25.56 for everything.
Brrunno [24]
D) 8x + 3.56 = 25.56

8 0
3 years ago
Hello, help me please))
Fed [463]

Answer:

  • 6
  • 9
  • 1/8
  • -10/11

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.

__

<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
Simplify: (9x^5)(4x^4)<br><br> please show your work so i can see how to do this thank you &lt;3
Alchen [17]
9x^5 • 4x^4
9•4= 36
X^5+4= x^9
Your answer is 36x^9
3 0
3 years ago
a perfect score on a quiz is 100 Mrs Frisoli gives students 1 point putting their name on the paper if there are only 9 students
telo118 [61]

putting your name on the paper gives you one point. 100 total points. Remaining points is 100-1=99.

9 questions, so 99/9=11.

Each question is worth 11 points. Hope I helped!

7 0
3 years ago
Imagine that there are 100 different researchers each studying the sleeping habit of a college freshman. Each researcher takes a
aalyn [17]

Answer:

Approximately 5 intervals will not capture the true mean hour of sleep freshman get at night.

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for population mean implies that there is a (1 - α) probability that the true value of the mean is included in the interval.

Or, the (1 - α)% confidence interval for the mean implies that there is (1 - α)% confidence or certainty that the true mean value is contained in the interval.

And, if 100 such (1 - α)% confidence interval for the mean are computed then 95 of these 100 interval will consist of the true mean value.

In this case it is provided that 100 researchers estimate the population mean hour of sleep freshman get at night, and each one construct a 95% confidence interval for the mean.

Then approximately 95 of these 100 confidence intervals will capture the true mean hour of sleep freshman get at night. And approximately 5 intervals will not capture the true mean hour of sleep freshman get at night.

5 0
3 years ago
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