Define the sequence W so that W(n) is the number of white squares in Step n, and define the sequence B so that B(n) is the number of black squares in Step n.

1. Write an equation for sequence B.

2. Is the number of black squares ever larger than the number of white squares? Explain how you know.

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)

what do you mean

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