444.25(8) = 3554
4000 - 3554 = 446 <== what she still owes
Step-by-step explanation:
The total probability that the DeLorean makes the trip is:
P = P(engine) × P(at least 1 time circuit) × P(at least 2 capacitors)
P = P(engine) × (1 − P(0 time circuits)) × P(at least 2 capacitors)
P = 0.94 × (1 − ₄C₀ 0.75⁰ 0.25⁴) × (₃C₂ 0.8² 0.2¹ + ₃C₃ 0.8³ 0.2⁰)
P = 0.94 × (1 − 0.25⁴) × (0.384 + 0.512)
P = 0.83895
The reliability of the DeLorean is approximately 83.9%.
Answer:
66.3
Step-by-step explanation:
First, you need to find the 25% of $88.40.
88.40×25% (or) 25/100 = □/88.40
Solve that and you should get 22.10.
22.10 is 25% of $88.40
Finally, subtract your percent from original price and boom!
88.40 - 22.10 = $66.30
Answer:
12
Step-by-step explanation:
if each bar is cut into 3 pieces, then we multiply 4 by 3 to get 12.