The general term is obtained by starting with the initial value 5 and then subtracting 4 each time you wish to generate a new term:
a2 = second term = 5+(2-1)(-4) = 5+(-4) = 1
General term:
an = nth term = 5+(n-1)(-4)
Thus, the 21st term is 5+(21-1)(-4) = 5 + (20)(-4) = -75 (answer)
Answer:
56m2
Step-by-step explanation:
Answer:
AAA similarity
Step-by-step explanation:
∠A = ∠Q = ∠Y = 50°
∠B = ∠P = ∠Z = 60°
∠C = ∠R = ∠X = 70°
So,
ΔABC ~ ΔQPR
ΔPQR ~ ΔZYX
ΔZYX ~ ΔBAC
Answer:
<h3>x by y </h3>
Step-by-step explanation:
Answer:
60.
Step-by-step explanation:
Go by the formula in the picture