The only example that does not have parallel congruent bases is the rectangular pyramid. The reason is that all pyramids are formed from a base and then all lateral faces are triangles meeting at one point on the top of the pyramid.
Answer:
y=5x-13
Step-by-step explanation:
y-y1=m(x-x1)
y-(-3)=5(x-2)
y+3=5(x-2)
y=5x-10-3
y=5x-13
Answer:
31.4 cm
Step-by-step explanation:
5x3.14x2 = 31.4 cm
Answer:
1 time unit
Step-by-step explanation:
There is a 1 in 3 chance that the time until the bulb burns out is zero, and a 2 in 3 chance that the time is the average between 0 and 3 (since it is uniformly distributed). Therefore, the expected value for the time until it burns is:

The expected value of the time until the lightbulb burns out is 1 time unit.