You roll a die 4 times. What is the probability of rolling a 3 on all 4 times? A.1/216
B.1/6
C.4/6
D.1/1296

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?