3 years ago

This is a standard deviation contest. Which of the following sets of four numbers has the smallest possible standard deviation?

Mathematics

1 answer:

Maksim231197 [3]3 years ago

6 0

B option is right I think.

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Which knife would let you cut up a 10 pound piece of raw meat more easily?

Svetach [21]

Answer:

i think it would be a 6in

Step-by-step explanation:

there is no difference because they are knifes and they both cut the same.

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3 years ago

The circumference of a circle is 15 ft. find its area writing 3.14 for pi

givi [52]

The circumference of a circle can be found by multiplying pi ( π = 3.14 ) by the diameter of the circle. If a circle has a diameter of 4, its circumference is 3.14*4=12.56. If you know the radius, the diameter is twice as large.

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3 years ago

Read 2 more answers

Two curves are orthogonal if their tangent lines are perpendicular at each point of intersection. are the given families of curv

Akimi4 [234]

Hello,

$P(x,y)=x^2+y^2-ax=0\\\\
\dfrac{\partial{P}}{\partial{x}}=2x-a\\\\
\dfrac{\partial{P}}{\partial{y}}=2y\\\\


Q(x,y)=x^2+y^2-by=0\\\\
\dfrac{\partial{Q}}{\partial{x}}=2x\\\\
\dfrac{\partial{Q}}{\partial{y}}=2y-b\\\\

\dfrac{\partial{P}}{\partial{x}}*\dfrac{\partial{Q}}{\partial{x}}+\dfrac{\partial{P}}{\partial{y}}*\dfrac{\partial{Q}}{\partial{y}}=(2x-a)*2x+2y(2y-b)\\
=4x^2+4y^2-2ax-2by\\
=2(2x^2+2y^2-ax-by)\\
=2*P(x,y)+Q(x,y))\\
=2*(0+0)=0\\\\

Answer YES
$

5 0

3 years ago

I need to change the subject to x

ira [324]

Answer:

h) (x+4t²)/4= 3V

x+4t²= 4*3V

x+4t²=12V

x=12V-4t²

MN=√(3x-2)

(MN)²=3x-2

3x-2=(MN)²

3x=(MN)²+2

x= [(MN)²+2]/3

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3 years ago

An air traffic controller has two jets on her radar. On a coordinate grid that is labeled in miles, the jets are located at (40,

Usimov [2.4K]

Answer:

the two would 20 miles apart on a coordinate grid .

Step-by-step explanation:

if you look at a 60 by 60 coordinate grid (40,-30) is 20 spaces away from (-60,-30).

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3 years ago