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3 years ago

Whats 30 divided by 12

Mathematics

2 answers:

galina1969 [7]3 years ago

8 0

Answer:

2.5

Step-by-step explanation:

never [62]3 years ago

5 0

Answer:

2.5

Step-by-step explanation:

30/12 = 2.5

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The quotient of w and 5 is at least 25

const2013 [10]

I think the answer is 5 because 25 divided by 5=5

8 0

3 years ago

Read 2 more answers

the equation of a circle in general form is x squared + y squared + 20x + 12 y + 15 equals 0what is the equation of the circle i

Marrrta [24]

Answer: $(x+10)^2+(y+6)^2=121$

Step-by-step explanation:

The equation of a circle in the general form is:

$ax^{2}+by^2+cx+dy+e=0$

The equaton of a circle in standard form is:

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

Where the center is at <em>(h, k)</em> and <em>r</em> is the radius

To write the equation of a circle from general form to standard form, you must complete the squaare, as you can see below:

1- Given the equation in general form:

$x^{2}+y^2+20x+12y+15=0$

2- Complete the square:

-Group the like terms and move the constant to the other side.

- Complete the square on the left side of the equation.

- Add the same value to the other side.

Then you obtain:

$(x^{2}+20x)+(y^2+12y)=-15\\(x^2+20x+(\frac{20}{2})^2)+(y^2+12y+(\frac{12}{2})^2)=-15+(\frac{20}{2})^2+(\frac{12}{2})^2\\\\(x+10)^2+(y+6)^2=-15+100+36\\(x+10)^2+(y+6)^2=121$

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3 years ago

The radioactive substance cesium-137 has a half-life of

statuscvo [17]

A(t)=A0*(1/2)^(t/30)
where t=elapsed years
A0=initial mass at t=0.

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3 years ago

Need help with this

Kruka [31]

Answer:

ask tiktok i recomend

Step-by-step explanation:

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3 years ago

Can someone help me I already have one of the answers correct

Mashutka [201]

The answers are C and D

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3 years ago