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3 years ago

rhombus CDEF is shown below. If the slope of FC is 25, what must be the slope of CD in order for CDEF to be a square?

Mathematics

1 answer:

Andrew [12]3 years ago

8 0

Answer:

$-\dfrac{1}{25}$

Step-by-step explanation:

Given the rhombus CDEF, sides FC and CD are adjacent sides.

Using coordinate geometry, to proof that a quadrilateral is a square, with regards to the slope, the slope of adjacent segments must be negative reciprocals.

In fact, by definition: Two lines with slopes $m_1$ and m_2$ are perpendicular if:

$m_1=-\dfrac{1}{m_2}$

Therefore if :

FC and CD are adjacent segments
Slope of FC=25

For the rhombus to be a square:

Slope of CD $=-\dfrac{1}{25}$

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Step-by-step explanation:

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3 years ago

What mistake was made?<br> Please help!

Goryan [66]

Answer:

soooooo basically,

Step-by-step explanation:

10x-1 DOES NOT equal 59

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3 years ago

Each week, Mr. Jones goes to the grocery store. Mr. Jones estimates that he will spend $120 when he goes this week. When he goes

34kurt

The formula for percent error is the absolute vale of: theoretical-experimental and the result of that divided by the theoretical so it is 120-94=26 and divide that by 120 and it is .216 so round up to .22 and then multiply by 100 which is 22 so 22%

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3 years ago

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r-ruslan [8.4K]

Answer:

1. I dont know what format they want you to write it in but its 27/100 which is 0.27 as a decimal and 27% as a percent

2. it'll be 11/100 which is 0.11 as a decimal and 11% as a percent

Step-by-step explanation:

Since adding up all the people with cats, dogs or both is 73, and theres 100 people surveyed, that means 100-73=27 so 27 people dont have a cat or dog. Therefore its 27/100 which is 0.27 as a decimal and 27% as a percent

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3 years ago