3 years ago

Solve the simultaneous equations

Mathematics

1 answer:

Sergio039 [100]3 years ago

6 0

Answer:

the answer is (x,y) = ( $\frac{2}{161} , \frac{240}{101}$ )

Step-by-step explanation:

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On a test that has a normal distribution, a score of 60 falls two standard deviations above the mean, and a score of 42 falls on

Sergeu [11.5K]

Answer:

Step-by-step explanation:

Given that:

$A \ score \ of \ 60 \ falls \ two \ standard \ deviations \ above \ the \ mean \\ \\ A \ score \ of \ 42 \ falls \ one \ standard \ deviation \ below \ the \ m ean$

The interval for score = 60 - 42 = 18

If we divide it by the 3 standard deviations; the interval result into

= 18/3

= 6

So, the standard deviation is 6, and the mean = 42 + 6

= 48

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2 years ago

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What is 3000 x 344 +===

Doss [256]

Answer:

it equals to 1032000

Step-by-step explanation:

because 3000 x 344 = 1032000

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2 years ago

He was a newcomer in the land, a chechaquo, and this was his first winter. The trouble with him was that he was without imaginat

Brilliant_brown [7]

Answer:

The author is trying to tell us that you need an imagination

Step-by-step explanation:

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3 years ago

A figure has an area of 64 unit square which describes the area of the figure after a dilation with a scale factor of 3/2

eduard

Answer:

It's 144 units^2

Step-by-step explanation:

You have to take your 3/2 and square it, turning it to 9/4 and multiply that by 64, which gives you 144.

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2 years ago

Given the figure below, find the values of x and z

Ratling [72]

$(13x-85)^o=97^o\\\\13x-85=97\ \ \ |+85\\\\13x=182\ \ \ |:13\\\\x=14$

$z^o+97^o=180^o\ \ \ |-97^o\\\\z^o=83^o$

Answer: x = 14; z = 83

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3 years ago