3 years ago

What is the common ratio to 1,5,25,125

Mathematics

1 answer:

ruslelena [56]3 years ago

8 0

Answer:

Step-by-step explanation:

If the ratio is truly "common," you can find it from any pair of successive terms:

r = 5/1 = 5

The common ratio is 5.

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What is the standard form of 5x^2+5y^2-10x+20y-30=0

o-na [289]

$5x^2+5y^2-10x+20y-30=0$

We need to get the equation in square form

We apply completing the square method

$5x^2-10x+5y^2+20y-30=0$

Divide all the terms by 5

$x^2-2x+y^2+4y-6=0$

Group x terms and y terms separately

$(x^2-2x)+(y^2+4y)-6=0$

By completing the square method, we take half of coefficient of x and square it

$\frac{-2}{2} = -1$

square it $(-1)^2= 1$

Add 1 on both sides

$(x^2-2x+1)+(y^2+4y)-6=+1$

$\frac{4}{2} = 2$

square it $(2)^2= 4$

Add 4 on both sides

$(x^2-2x+1)+(y^2+4y+4)-6=0+1+4$

Add 6 on both sides

$(x^2-2x+1)+(y^2+4y+4)=6+1+4$

Now factor both parenthesis

$(x-1)^2+(y+2)^2=11$

The equation of the circle is $(x-1)^2+(y+2)^2=11$

7 0

4 years ago

A/5<1 <br> I need help with that ASAP please

Anika [276]

Answer:

a<5

Step-by-step explanation:

a/5<1

5*a/5<1*5

a<5

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4 years ago

Help please and sorry it’s not clear

aliina [53]

Answer:

Step-by-step explanation:

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2 years ago

How do u do constant rate of change I'm confused explain please.

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3 years ago

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Y_Kistochka [10]

-2x3 -5x2 assuming that this is written in exponential form

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4 years ago

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