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3 years ago

2+(8-4)(4-8)/3+(-5-2)

Mathematics

2 answers:

irina1246 [14]3 years ago

8 0

Answer:

Step-by-step explanation:

2 + 4 x -4 / 3 -7

4 x -4 = -16

3 - 7 = -4

2 + -16 / -4

2 + 4 = 6

Bond [772]3 years ago

7 0

Answer: -31/3

Decimal Form: -10.3

Step-by-step explanation:

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frez [133]

Answer:

x 1/3

Step-by-step explanation:

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3 years ago

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Nana76 [90]

Answer:

Step-by-step explanation:

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3 years ago

Find an equation of the tangent line to the curve xey + yex = 5

Harman [31]

I got:

y′=(−ye^−x−e^y)/xe^y+e^x
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I'm not sure with my solution though i hope this might help you.

I hope my answer has come to your help. Have a nice day ahead and may God bless you always!

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3 years ago

Mercury is a persistent and dispersive environmental contaminant found in many ecosystems around the world. When released as an

ipn [44]

Answer:

The sample mean is $\bar{x}=1.24$ and the sample median is 0.56

Step-by-step explanation:

The sample mean $\bar{x}$ of observations $x_1,x_2,...,x_n$ is given by

$\bar{x}=\frac{\sum x_i}{n}$

Applying the above definition we get that

The sum of these 15 sample observations is

$\sum x_i = 0.21+\:0.22+\:0.26+\:0.30+\:0.34+\:0.42\:+0.55+\:0.56+\:1.43+\:1.70+\:1.84+\:2.20+\:2.25+\:3.06+\:3.26\\\\\sum x_i =18.6$

and the sample mean is

$\bar{x}=\frac{18.6}{15}=1.24$

The sample median is obtained by first ordering the n observations from smallest to largest (with any repeated values included so that every sample observation appears in the ordered list). Then,

Sample median = The single middle value if n is odd = $(\frac{n+1}{2} )^{th}$