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Oksanka [162]
3 years ago
7

45 units and is centered at

Mathematics
1 answer:
mariarad [96]3 years ago
3 0

The correct question is:

A circle has a radius of 45 units and is centered at (-2.4, -4.8).

What is the equation of this circle?

Answer:

Equation of the circle is;

(x + 2.4)² + (y + 4.8)² = 2304

Step-by-step explanation:

The standard equation of a circle is;

(x - a)² + (y - b)²  =  r²

where;

(a,b) is the center of the circle and r is the radius of the circle

Now, from the question, the circle is centered at (-2.4, -4.8) and the radius is 45

Thus, plugging those values into the standard form of equation of a circle, we have;

(x - (-2.4))²  +  (y - (-4.8))²  = 48²

This gives;

(x + 2.4)² + (y + 4.8)² = 2304

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3 years ago
Can someone help and explain ? thank you !
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4 years ago
(7t-2)-(-3+1)=-3(1-3t) how do you do this?
Sergeu [11.5K]
<h2>Greetings!</h2>

Answer:

t = \frac{3}{2}

Step-by-step explanation:

First, you need to complete the -3 + 1 and then expand the brackets

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7t -2 - (-2) = -3(1 - 3t)

Now expant the -3(1 - 3t) bracket

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The two negatives turn positive:

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Move the -3 over to the oposite side, and also move the +7t over to the +9t, making it a negative:

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3 = 2t

Divide both sides by 2:

t = \frac{3}{2}

So the value of t is \frac{3}{2}


<h2>Hope this helps!</h2>
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4 years ago
Select the correct answer from each drop-down menu.
Pie

Answer:

Step-by-step explanation:

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3 years ago
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