Future wind power
have you ever wondered how much of the energy you use comes from wind power?
can the growth of the number of wind farms in the united states be modeled by a linear function? can you determine how much wind power will be needed in the future?
1. in 2012, the united states generated approximately 3.5% of its electricity from wind power. approximately 4 billion kilowatt hours (kwh) of electricity was used.
a. a terawatt hour (twh) is equal to 1,000,000,000 kilowatt hours. how many terawatt hours is equal to 4 trillion kilowatt hours? 4000
4000x1,000,000,000
b. how much of the electricity in 2012 came from wind power? write your answer in terawatt hours.
3.5% came from wind power = 140(twh)
c. you will be writing an equation which represents wind farm growth since 2012. what ordered pair can you use as your initial value?

after simplifying it i got: -36.25 as my answer. hope that !

.95

step-by-step explanation:

1. sometimes

2.   never

3   .08c = 7.50+.05c   250 pages

step-by-step explanation:

1.   sometimes

the theoretical probability of rolling a 1 is 1/6.   perhaps you got really lucky and never rolled a 1   in those 60 times.   your experimental probability is 0.   or perhaps you rolled a 1   20 times.   your experimental probability is 20/60 is 1/3.     it really just depends on how you rolled in that experiment.

2.   never

the probability of the event occurring is 1.   that is being 100 % sure it will happen.   that is the maximum amount of confidence we have.

3.   no customer card cost:   .08 times number of pages

customer card cost:   7.50 + .05 times number of pages

we want to find when it costs the same amount, so we will set these equal

let c = number of pages

.08c = 7.50+.05c

subtract .05c from each side

.08c-.05c = 7.5+.05c-.05c

.03c=7.5

divide each side by .03

.03c/.03 = 7.5/03

c =250  

the cost is the same at 250 pages