Alexa wants to use an indirect proof to prove that all rectangles are not squares. She first assumes that all rectangles are squares. Alexa then provides the following counterexample to
disprove her assumption.

She concludes that all rectangles must not be squares.
Which statement best describes Alexa's indirect proof?

A. Alexa's proof is incorrect. She made an error in her counterexample.

B. Alexa's proof is incorrect. She followed the steps of an indirect proof in the wrong order.

C. Alexa's proof is incorrect. She made an error in her assumption.

D. Alexa's proof is correct and contains no errors.

51-50

step-by-step explanation:

35x 3= 105

step-by-step explanation:

35+35= 70   70 + 35= 105

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

1/2(2*4)=6 $$- agahajakanajak