Its A i had the same one. Hope it helps.
She used 180 beads because 45x4 =180
Answer:
Option C. 
Step-by-step explanation:
we know that
The volume of a cylinder is equal to

we have


substitute


Answer:
1. a/2b 2. 5/6 3. x-1/2 4. y-5/y+5 5. x+5/x-1
Step-by-step explanation:
If the x is squared, the parabola is vertical (opens up or down). If the y is squared, it is horizontal (opens left or right). If a is positive, the parabola opens up or to the right. If it is negative, it opens down or to the left.