Answer:
-17
Step-by-step explanation:
Expand to get 12-27-2=-17
The volume of the resulting solid will be twice as large as the volume of the original solid.
I think 1,784 is the surface area. But not sure
25-9=16. 5^2=25 and 3^2=9
Answer:
35.03% probability that fewer than 7 will be carrying backpacks
Step-by-step explanation:
For each student, there are only two possible outcomes. Either they are carrying a backpack, or they are not. The probability of a student carrying a backpack is independent from other students. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

In which
is the number of different combinations of x objects from a set of n elements, given by the following formula.

And p is the probability of X happening.
The probability that an Oxnard University student is carrying a backpack is .70.
This means that 
If 10 students are observed at random, what is the probability that fewer than 7 will be carrying backpacks
This is
when
. So










35.03% probability that fewer than 7 will be carrying backpacks