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3 years ago

What is this 1=-t-5?

Mathematics

2 answers:

JulijaS [17]3 years ago

6 0

Answer:

t=-6

Step-by-step explanation:

1=-t-5

1+5==-t-5+5

6=-t

t=-6

Semenov [28]3 years ago

4 0

Answer:

t = -6

Step-by-step explanation:

1 = -t - 5

-t = 1 + 5

-t = 6

t = -6

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Step-by-step explanation:

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Read 2 more answers

The diameter of a circle has length 12. The center is at*(-5, 2). Give the equation

labwork [276]

Answer:

Equation of the circle is : $x^{2} + 10x + y^{2} -4y -7 =0$

Step-by-step explanation:

Let us consider the image attached in the answer area.

The center O has the co-ordinates i.e. (-5,2) and the diameter given is 12 units.

We know that radius is half of diameter.

$\text{Radius = }\dfrac{\text{Diameter}}{2}$

$\text{Radius = }\dfrac{12}{2}\\\Rightarrow \text{Radius = 6units}$

The equation for circle given the center and radius, can be represented as:

$(x-a)^{2}+ (y-b)^{2} = r^{2}$

Where (a,b) is the co-ordinate of center and r is the radius.

Let us consider the following formula:

$(p+q)^2 = p^{2}+ q^{2} +2pq\\(p-q)^2 = p^{2}+ q^{2} -2pq$

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