20 possibilities based on this as a combination not a permutation, 6 nCr 3 = 20
Answer:
$19.99
Step-by-step explanation:
1 lb = 16 oz
8.2 lb = (16 x 8) +2= 130
---> x = $0.154 per oz
0.154 x 130 = $19.99
Answer:
B
Step-by-step explanation:
Using the pythagorean triples: 3,4,5 you can determine the third side.
Using a right triangle you have a hypotenuse of 5, the height of the triangle would be 4, so then the base would be 3 but you have two right triangles together so you have to double it which equals 6.
Answer:
a(7) = 21
Step-by-step explanation:
Using the recursive formula and a(1) = 0, a(2) = 1 , then
a(3) = a(2) + 2a(1) = 1 + 2(0) = 1 + 0 = 1
a(4) = a(3) + 2a(2) = 1 + 2(1) = 1 + 2 = 3
a(5) = a(4) + 2a(3) = 3 + 2(1) = 3 + 2 = 5
a(6) = a(5) + 2a(4) = 5 + 2(3) = 5 + 6 = 11
a(7) = a(6) + 2a(5) = 11 + 2(5) = 11 + 10 = 21
