In one week he drives 84 miles, so to know how many miles he drove in four weeks, you just gotta multiply it by 4
84 x 4 = 336 miles
The formula for the volume of a pyramid with base B and altitude h is
A = (1/3)(B)(h).
Here, that comes to A = (1/3)(2^2)(1.5) = 2 cubic feet (ANSWER)
I believe the answers are A and B
Answer:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
The expected value is given by this formula:
For this reason the best option is:
D. E (X )=np
Step-by-step explanation:
Previous concepts
The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".
Solution to the problem
Let X the random variable of interest, on this case we now that:
The probability mass function for the Binomial distribution is given as:
Where (nCx) means combinatory and it's given by this formula:
The expected value is given by this formula:
For this reason the best option is:
D. E (X )=np
Answer:
p(x)=x^4+9x^3-9x+2
p(-3)=(-3)⁴+9(-3)³-9×(-3)+2=81-243+27+2=-133 is you answer