The amount of balls in a given layer can be found by squaring the layer it is in
4 layers
top layer (1st) is 1
2nd is 4
3rd layer is 9
4th is 16
add them up
1+4+9+16=30
30 in that pyramid
21 cars, 32 motorcycles.create a system of equations using x for cars and y for motorcycles.

multiply the top equation by 2 to prepare for elimination method

subtract terms

divide both sides by negative 2 to solve for x
x =21
plug in x into original equation to solve for y.
21 + y = 53
subtract both sides by 21
y=32
Answer:
Binomial Distribution
Step-by-step explanation:
In this case there are only two possible outcomes that is either the processor requires repair or does not require.
In such cases binomial distribution is beneficial to use.
Binomial Distribution is simply the probability of failure or success in an experiment that is repeated multiple times.
for binomial to be used following three conditions are to be used:
1. Fixed number of trails
2. Each trial or observation is independent
3. probability of success is exactly same
Answer:
What shape is the object in question?
Answer:
honestly math is my worst subject but i think its 2 im really srry i think thats wrong tho
Step-by-step explanation: