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3 years ago

PLEASE HELP ILL MARK BRAINLIEST

Mathematics

1 answer:

vodomira [7]3 years ago

3 0

Answer:

y=x-3

Step-by-step explanation:

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Write the equation of the circle with center (-4, 8) and passes through the point (-2, -1)

anzhelika [568]

Answer:

$(x+4)^2+(y-8)^2=85$

Step-by-step explanation:

The standard equation for a circle is given by:

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

Where (h, k) is the center and r is the radius.

We know that the center is (-4, 8). So, substitute -4 for h and 8 for k:

$(x-(-4))^2+(y-8)^2=r^2\\$

Simplify:

$(x+4)^2+(y-8)^2=r^2$

Now, we will need to find r.

We know that it passes through the point (-2, -1). So, we can substitute -2 for x and -1 for y and solve for r. So:

$(-2+4)^2+(-1-8)^2=r^2$

Evaluate:

$(2)^2+(-9)^2=r^2$

Square:

$4+81=r^2$

Add:

$r^2=85$

So, r squared is 85.

We don’t actually have to solve for r itself, since we will have to square it anyways.

So, we have:

$(x+4)^2+(y-8)^2=r^2$

Substituting 85 for r squared, we get:

$(x+4)^2+(y-8)^2=85$

And we have our equation.

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3 years ago

Two dice are rolled to determine the sum. What is the probability that the sum on both dice is 7, given that exactly one die tur

RSB [31]

It depends on how many sided die it is

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Westkost [7]

Answer:

5) a)(-4,-6) b) (4,2) c) (2,6) 6) (3,2)

Step-by-step explanation:

5) the solution is the points where the lines meet.

6) graphed the lines; the picture of the graph is attached below

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What is the meaning of IQR

vfiekz [6]

It’s the parts on the graph so it would be Q1 Q2 Q3

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Jill traveled to Canada and bought a new lamp for $460 Canadian dollars. In US dollars (to the nearest cent) this is equivalent

liberstina [14]

1 US dollar= 1.18 Canadian dollars
1 Canadian dollar= .85 US cents
$460 Canadian Dollars= $390.33 US Dollars

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