Answer:
104%
Step-by-step explanation:
We have two options in the case of the equation for parabola y=ax²:
1) in the case that a is negative the parabola opens down
2) in the case that a is positive the parabola opens up
So the correct answer is: if a is positive, the parabola opens up.
27. To find this one, you would need to use the Pythagorean theorem, making the answers B and D.
28. Make a mark with your pencil. Set the compass so it has a point on each end of line ab. Now set the side of the compass without the pencil on the mark you already made and mark it. Use the straight edge to make the marks into a line. Now set the compass to the size of line cd. Set the non pencil side on one of the point of your line you just made. Make a mark. Now erase the part of the line that is the length of cd so it is ab-cd.
29. (4,3) I look at the distance between the x coordinates and add it to the end that is the middle and do the same for the y.
30. Put either side of the compass on the ends of the line. put the non pencil side on point x. Make a decent sized arc with the compass. Pick however many spots you needed and mark them. Use the straight edge to connect these points to point x. Repeat for all the points. Erase the arc.
Hope this helped. Let me know if you need any more help!
Answer:
Yeah
Step-by-step explanation:
80.64
because 16 times 12 is 192
if every tile is 2 feet divide 192 by 2
you should get 96 meaning there are 96 tiles
then take 96 and multiply by it by .84 because every tile is 84 cents
you then get 80.64
