The answer is |-8| = x, thus x=8
|x| = 8, thus x=8 or x=-8. Remember that |-8| is also 8 so there are two solutions here! 
|x| = -8, there are no solutions because the absolute value can never be negative.

6 0

3 years ago

Select all ratios equivalent to 1:2. is it 10:20. 7:14. 6:18.

Alex787 [66]

10:20 I think if it isn’t I’m sorry

6 0

3 years ago

Read 2 more answers

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.

8 0

3 years ago

100 is 10 more than my number

mixer [17]

The answer to your problem is 90 because 100 minus 10 is 90

3 0

3 years ago