Indicate which property is illustrated in step 1.

step 1 8 + (5 + 9) + 0 = 8 + (9 + 5) + 0
step 2 = (8 + 9) + (5 + 0)
step 3 = (8 + 9) + 5
step 4 = 17 + 5

Asequence has its first term equal to 4, and each term of the sequence is obtained by adding 2 to the previous term. if f(n) represents the nth term of the sequence, which of the following recursive functions best defines this sequence? (1 point) f(1) = 2 and f(n) = f(n − 1) + 4; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2n; n > 1 f(1) = 2 and f(n) = f(n − 1) + 4n; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2; n > 1 i will award !

The high temp today was 62°. when nighttime comes, the temp will drop 40°. by 4am the temp will drop an additional 40°. what is the temp at 4am?

Parallel lines r and s are cut by two transversales, parallel lines t and u. which angles are corresponding angles with angle 8