3 years ago

Given e (-2,3) f(-2,-2) g(3,-2) h(3,3) prove efgh is a rhombus

Mathematics

1 answer:

lyudmila [28]3 years ago

8 0

the answer to this question (-2,3)

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Evaluate each expression. Determine if the final simplified form of the expression is positive or negative -42 (-4)2 42

Sati [7]

Answer:

Given the expression:

$-4^2$

we know:

$4^2 = 4 \times 4 = 16$

then;

$-4^2 = -16$

Therefore, the value of expression $-4^2$ is -16 i.e negative.

$(-4)^2$

we know:

$4^2 = 4 \times 4 = 16$

$(-1)^2 = 1$

then;

$(-4)^2 = (-1)^2 \cdot (4)^2= 16$

Therefore, the expression $(-4)^2$ is 16 i.e Positive.

$4^2$

we know:

$4^2 = 4 \times 4 = 16$

then;

$4^2 = 16$

Therefore, the expression $4^2$ is 16 i.e Positive.

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3 years ago

A group of 625 students has a mean age of 15.8 years with a standard deviation of 0.6 years. The ages are normally distributed.

Tom [10]

16.2-15.8/0.6=0.6667. Use normalcdf() to find the percentage from -999 to 0.6777 which is 0.7476*625=467

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3 years ago

A circle is divided into 6 equal parts. what is the total angle measure of 1 part?

Rus_ich [418]

Answer:

$dis \: is \: easy \\ angle \: in \: a \: circle = 360 \\ the \: angle \: is \: divided \: into \: six \: part \\ divide \: the \: 360 \: by \: 6 \\ \frac{360}{6} = 60 \\ therefore \: the \: angle \: of \: one \: part \: \\ = 60 \: degree$

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3 years ago

Please simplify this equation:<br><br>16x²+16y²+96x-40y=315

gavmur [86]

Hopefully this helps: 16(x^2 + 6x + y^2) = 5(8y + 63)

I'm not sure where to take it from there, but hopefully someone can build off of that. :)

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Dmitry [639]

Answer:

Step-by-step explanation:

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