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3 years ago

-16+56=(X)×3.find ×?

Mathematics

1 answer:

Vitek1552 [10]3 years ago

5 0

Answer:

40/3

Step-by-step explanation:

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Rounding factors to their greatest place results in this

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I think a polynomial... could be wrong though....

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3 years ago

Solve using Cramer's rule. 3x + 2y = 5<br> x + 3y = 4<br> i need an answer ASAP

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3 years ago

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Evaluate the following expression when x = -5 and y = 25.

MA_775_DIABLO [31]

Answer:

Step-by-step explanation:

In the given expression, substitute -5 for x and 25 for y:

5|x|-y to the third power over x becomes

5|-5| - 25 25 - 25

------------------ = -------------- = 0

-5 -5

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4 years ago

All the edges of a regular square pyramid have length 8 . What is the:

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vol=BX1/3 h

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3 years ago

The equation of a circle is x2 + y2 + Cx + Dy + E = 0. If the radius of the circle is decreased without changing the coordinates

tatyana61 [14]

Answer:

There will be no change in C and D but E must increase.

Step-by-step explanation:

We are given a equation of circle as:

$x^2+y^2+Cx+Dy+E = 0$

it could also be represented in general form of equation of circle as:

$(x+\dfrac{C}{2})^2+(y+\dfrac{D}{2})^2=\dfrac{C^2}{4}+\dfrac{D^2}{4}-E$

( since we add both the side of the equality by $\dfrac{C^2}{4}$ and $\dfrac{D^2}{4}$ )

Hence, on comparing the equation with general form of the equation:

$(x-g)^2+(y-h)^2=r^2$

The center of circle is (g,h) and radius is r.

Here we have the center as:

$(\dfrac{-C}{2},\dfrac{-D}{2})$

and radius is given aS:

$r=\sqrt{\dfrac{C^2}{4}+\dfrac{D^2}{4}-E}\\\\r=\sqrt{\dfrac{C^2+D^2-4E}{4}$

$r=\dfrac{\sqrt{C^2+D^2-4E}}{2}$

As there is no change in the center hence the value of $\dfrac{-C}{2}$ and $\dfrac{-D}{2}$ remains unchanged i.e. the value of C and D remains unchanged.

Now we are given that the radius of the circle is decreased.

that means the change in radius is due to the change in E.

Hence for the quantity $r=\dfrac{\sqrt{C^2+D^2-4E}}{2}\\$ to decrease E must increase so that the total quantity decreases.

Hence there will be no change in C and D but E must increase in order to decrease the radius of circle.

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3 years ago

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-16+56=(X)×3.find ×?​

-16+56=(X)×3.find ×?