If the base of the ladder is 15 feet from the house and reaches 20 feet up the side of the house, what is the length of the ladder? in feet and if a ladder is 10 feet long and the base is 6 feet from the side of the house, how far up the side of the house will the ladder reach?

Part 1: 25 feet long

Part 2: 8 feet high

Step-by-step explanation:

A^2 +B^2 =C^2

C is the hypotenuse which you are finding for part 1.

You are finding B for part 2.

Part 1:

15^2 + 20^2 = C^2

225+400=C^2

625=C^2

Sqrt(625)= C

25=C

Answer for Part 1 is 25 feet long.

Part 2:

6^2 + B^2 = 10^2

36 + B^2 = 100

Subtract 36 from both sides.

B^2 = 64

B= sqrt(64)

B= 8

Answer for Part 2: 8 feet high

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

6.5

step-by-step explanation:

you said it was in the question

~courtney