10. (1,-1)
19. clockwise 90 degrees; enlargement
Hey there!
Since you probably have better things to do, your answer would be A: π(3)²
To back up my answer, the formula to find the area of a circle is π · R² where R = Radius. In that formula then, you just plug everything in. Since the radius is 3, you would put 3 into the "( )". Finally, just plug the rest of the equation in!
<em>I'm open to any question or comment!</em>
<em>God Bless!</em>
<em>-X8lue83rryX</em>
X=5 and y =2.
Here's how you do it.
Multiply the first equation by -3, and the second one by 1.
add the equations to eliminate x.
then solve for y by dividing both sides by -5, which gives us 2.
to solve for x subsitute 2 in for y.
I'm pretty sure it would be 4 20÷5=4
I think the answer is zero
I hope this helps