Hi
Use Euler's formula for this for a 3D figure. F + V = E + 2, where F is the number of faces, V is the number of vertices, E is the number of edges, +2! You have enough info to fill in the formula to find that the number of vertices is 6.
Hoped I Helped
Pi * r^2 = 16.79
16.79/pi = 5.344.
r= 2.31
Answer: A
Y-3 = 2(2-3) y=1
y−3=2(2−3)
Step 1: Simplify both sides of the equation.
y−3=2(2−3)
y+−3=−2
y−3=−2
Step 2: Add 3 to both sides.
y−3+3=−2+3
y=1
Step-by-step explanation: y + 5 = 2(2 + 1) y+5=2(2+1)
y=1
Hello!
We can write this as the system of equations below. We have boxes A, B, and C.
A+B+C=9
B=A+1
C=B+1
First of all we can plug our B and C values into the first equation and solve for A.
A+A+1+A+1+1=9
3a+3=9
3a=6
a=2
Now we can plug our a value into the other equations.
B=2+1
B=3
C=3+1
C=4
Therefore, there are 2 rocks in one box, three in another, and 4 in the last.
I hope this helps!