We can usually get a couple of facts for these that let us rule out answers without working out all the details.
The green and red areas are below a CUP parabola, opening up. CUP stands for concave up positive, and tells us there's a positive coefficient on x². Unfortunately all the choices have a positive 1 coefficient, no help here.
Since the areas are below they're going to be y ≤ x² + other stuff. That rules out B and C.
The red and blue parts are below the line, and the line has a positive slope. So that's y ≤ mx + b where m>0 is the positive slope. That rules out D with the negative slope.
Answer: A
372 books will be there and 20 shelves can hold 360 books it will need 21 shelves
Answer:
1 1/5
Step-by-step explanation:
I have showed the workings and answers in the picture
Yes, triangle ZHY and JHI are similar triangles because if you multiply each side on Triangle ZHY by 2, they equal the sides of the Triangle from IHJ.
For example, ZH x 2= JH , YZ x 2= IJ
1/4 and I know this because 25 goes into 100 4 times
