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3 years ago

What does this equal? 4x+5=12-2x

Mathematics

2 answers:

Harman [31]3 years ago

8 0

4x+5=12-2x
Answer: x=1.1666666 and so on

geniusboy [140]3 years ago

7 0

4x+5=12-2x
6x+5=12
6x=7
x=1.167 (rounded)

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Answer:

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Step-by-step explanation:

move the decimal place three places to the left

since it is not repeating it is terminating

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3 years ago

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Step-by-step explanation:

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3 years ago

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Find m<LMN if m<LMT=23 degree and m<TMN=144 degree

rodikova [14]

Answer:

∠LMN = 167°

Step-by-step explanation:

∠LMT = 23°

∠TMN = 144°

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3 years ago

Please solve the right triangle below. Round the decimals to the nearest tenth.

aniked [119]

Find $AB$ using Pythagorean Theorem,

$AB=\sqrt{12^2+9^2}=15$ .

$A=\tan^{-1}(12/9)=53.1^{\circ}$ .

$B=\tan^{-1}(9/12)=36.9^{\circ}$ .

Hope this helps.

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3 years ago

Question 18 Item 18 The distribution of the number of moths captured per night by a certain moth trap is approximately normal wi

juin [17]

Answer:

Standard deviation 46.3

Step-by-step explanation:

A 28% of the distribution is equivalent to a z score of -0.5828, you can use a z table to find that.

Z score is calculated as follows:

$z = \frac{x-\mu}{\sigma}$

x is the number being evaluated

μ is the mean

σ is the standard deviation

And it is used to calculate how many standard deviations you are from the mean of the sample.

Replacing with the known information you can calculate the standard deviation:

$\sigma=\frac{x-\mu}{z} =\frac{76-103}{-0.5828}= 46.3$

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3 years ago